Gornye nauki i tekhnologii最新文献_第5页

Analysis of Possible Origination of Domes in Longwalls 长壁穹顶可能起源的分析

Gornye nauki i tekhnologii Pub Date : 2019-04-27 DOI: 10.17073/2500-0632-2019-1-57-64

R. I. Imranov, E. Khmyrova, O. Besimbayeva, S. P. Olenyuk, A. Z. Kapasova

{"title":"Analysis of Possible Origination of Domes in Longwalls","authors":"R. I. Imranov, E. Khmyrova, O. Besimbayeva, S. P. Olenyuk, A. Z. Kapasova","doi":"10.17073/2500-0632-2019-1-57-64","DOIUrl":"https://doi.org/10.17073/2500-0632-2019-1-57-64","url":null,"abstract":"The research is aimed at solving problems of assessing underground working stability in complicated mining and geological conditions to increase reliability and safety of mining operations. Analysis of geomechanical processes occurring in a rock mass during extraction of coal seams to determine the stability of mining block roof is the most important task. The performed digital modeling of the rock mass based on the structural logs for K1 seam and the nearest borehole log enabled highly detailed identifying the types of rocks occurred in the seam roof and their strength characteristics, compressive stresses. To determine the stability of a mining block roof, the factor of safety of the rocks was used, which was determined by modeling method using Phase 28.0 and Rockscince software. The carbonaceous argillite parting 0.09–0.12 m thick was taken as the contact of the longwall with the seam roof, and, for completeness of the analysis, the upper high-ash coal member in the seam roof up to 0.7 m thick was used. The modeling findings, presented in the graph of dependence between the safety factor and the distance between the belt heading and air drift, showed that the probability of dome formation in the longwall is high, as the factor of safety of the rocks is less than unity, that indicates the roof instability in the course of the coal seam block extraction. The modeling methods allowed assessing the mine working stability, based on which the measures to improve the reliability and safety of mining operations can be timely developed, and due technical and technological solutions shall be reached.","PeriodicalId":34147,"journal":{"name":"Gornye nauki i tekhnologii","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42899046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Study of Geomechanical Condition of Unstable Rocks in the Vicinity of Mine Working Junctions 矿山工作点附近不稳定岩体的地质力学条件研究

Gornye nauki i tekhnologii Pub Date : 2019-04-27 DOI: 10.17073/2500-0632-2019-1-23-30

V. Basov

{"title":"The Study of Geomechanical Condition of Unstable Rocks in the Vicinity of Mine Working Junctions","authors":"V. Basov","doi":"10.17073/2500-0632-2019-1-23-30","DOIUrl":"https://doi.org/10.17073/2500-0632-2019-1-23-30","url":null,"abstract":"The relevance of research of material strain nature based on physical models equivalent to rocks is substantiated. To identify the dependencies and mechanism of unstable rock strain in the vicinity of mine working junctions, an experimental technique has been developed and presented. The method of physical modeling using equivalent materials was applied in the research. Strength characteristics of the rock equivalent material were calculated using the formulas proposed by G.N. Kuznetsov. The equivalent material was prepared based on two components, sand and paraffin. The mix formulation was selected, and ultimate compressive strength of the equivalent material was determined. The experiment was performed for three options of the physical models: an intact rock mass, a rock mass with a single mine working, and a rock mass with mine working junctions. Testing of the models made of the equivalent material was performed through uniaxial vertical loading using a hydraulic press. Based on the model testing findings, the dynamics of fracture propagation and crushing of the enclosing equivalent material in the vicinity of an artificial cavity, simulating a mine working, has been demonstrated. Besides, the graphs of relative strain versus vertical loading for each stage of the stepwise loading of these three model options were produced. The findings of the strain-stress distribution modeling for the equivalent material around the cavities simulating mine working junctions were analyzed. The strain testing findings for the materials simulating rock behavior are expected to be used as the initial data for analysis of physical and numerical simulation, as well as for developing engineering documentation with regard to the selection of parameters for supporting mine working junctions.","PeriodicalId":34147,"journal":{"name":"Gornye nauki i tekhnologii","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47319318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effects of Intermittent Inelasticity when Propagating Seismic Wave in Low Velocity Zone 地震波在低速带传播时的间歇性非弹性效应

Gornye nauki i tekhnologii Pub Date : 2019-04-27 DOI: 10.17073/2500-0632-2019-1-31-41

E. Mashinskii

{"title":"Effects of Intermittent Inelasticity when Propagating Seismic Wave in Low Velocity Zone","authors":"E. Mashinskii","doi":"10.17073/2500-0632-2019-1-31-41","DOIUrl":"https://doi.org/10.17073/2500-0632-2019-1-31-41","url":null,"abstract":"The study of atypical manifestations of rock inelasticity improves understanding of the physical mechanisms of seismic wave propagation and attenuation in real environments. In the field experiments, the propagation of longitudinal wave at frequency of 240–1000 Hz between two shallow boreholes in low speed zone was investigated. The measurements were performed using a piezoelectric pulse emitter and similar receiver tools positioned in the boreholes. \"Stress-time\" σ(t) digital responses were recorded by the open channel with microsecond temporal resolution. The unusual short-period variations of amplitude in the form of sharp flattening wave front, stress drop, or plateau of different width (tens of microseconds) were detected in the wave profile. These low-amplitude variations in the waveform were regarded as manifestations of hopping intermittent inelasticity. This inelastic process was assumed to affect the waveform transformation. The contribution of hopping inelasticity depends on the applied stress magnitude, i.e. in this case, the seismic response amplitude. The mechanism of hopping inelasticity at small strains may be explained by microplasticity of rocks. The findings obtained represent a new step in understanding of physics of seismic and acoustic wave propagation in rocks and can be useful for handling of applied problems in geophysics and mining.","PeriodicalId":34147,"journal":{"name":"Gornye nauki i tekhnologii","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67729844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

АНАЛИЗ ФРАКТАЛЬНЫХ ХАРАКТЕРИСТИК ГЕОМЕТРИИ ГОРНЫХ ВЫРАБОТОК ДЛЯ ОЦЕНКИ КАЧЕСТВА КОНТУРНОГО ВЗРЫВАНИЯ 测量地形爆炸质量的分形特征分析

Gornye nauki i tekhnologii Pub Date : 2018-12-31 DOI: 10.17073/2500-0632-2018-3-26-34

Олег Георгиевич Латышев, Д. В. Прищепа

{"title":"АНАЛИЗ ФРАКТАЛЬНЫХ ХАРАКТЕРИСТИК ГЕОМЕТРИИ ГОРНЫХ ВЫРАБОТОК ДЛЯ ОЦЕНКИ КАЧЕСТВА КОНТУРНОГО ВЗРЫВАНИЯ","authors":"Олег Георгиевич Латышев, Д. В. Прищепа","doi":"10.17073/2500-0632-2018-3-26-34","DOIUrl":"https://doi.org/10.17073/2500-0632-2018-3-26-34","url":null,"abstract":"The work examines the ways of estimating the smooth wall blasting quality when excavating mine workings. One of the main criteria is to achieve “smooth” mine working contour. It is shown that the mine working contour line represents a fractal object; its geometry is properly estimated by fractional fractal dimension. The definition of fractal dimension is based on the Richardson’s law, which connects the length of infinitely broken line and measurement interval. The calculation algorithm of fractal dimension in computer program is introduced. The analysis of real mine working contours which are formed in the process of drilling and blasting operations, allowed to determine statistically reliable connection of roughness coefficient of the mine working surface and the value of its fractal dimension. Quality criterion for smooth wall blasting is suggested – fractal coefficient of mine working shape. Its value represents the relation of equivalent cross-section area of a mine working to its perimeter, which is determined by fractal dimension of a contour. Obtained ratios allow to reliably estimate the quality of smooth wall blasting when excavating mine workings.","PeriodicalId":34147,"journal":{"name":"Gornye nauki i tekhnologii","volume":"1 1","pages":"26-34"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67729509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

SYSTEM APPROACH TO GEODYNAMIC ZONING BASED ON ARTIFICIAL NEURAL NETWORKS 基于人工神经网络的地球动力分区系统方法

Gornye nauki i tekhnologii Pub Date : 2018-12-31 DOI: 10.17073/2500-0632-2018-3-14-25

V. Tatarinov, A. Manevich, I. V. Losev

{"title":"SYSTEM APPROACH TO GEODYNAMIC ZONING BASED ON ARTIFICIAL NEURAL NETWORKS","authors":"V. Tatarinov, A. Manevich, I. V. Losev","doi":"10.17073/2500-0632-2018-3-14-25","DOIUrl":"https://doi.org/10.17073/2500-0632-2018-3-14-25","url":null,"abstract":"In this research are presented methodological aspects of the using of artificial neural networks for the tasks of geodynamic zoning of territories are considered when choosing locations for environmentally hazardous objects (using the example of nuclear fuel cycle facilities). To overcome the uncertainty caused by the complexity of analyzing information about the properties, processes and structure of the geological environment, a systematic information analysis approach is used. The geological environment is represented as a system of interacting anthropogenic object and environment, between which connections are organized. In assessing the safety of operation of this type of system, it is important to monitor indicators of the state of the environment. According to modern regulatory requirements of international and domestic organizations, one of the main, and at the same time, difficult to determine indicators of the state of sites for the nuclear fuel cycle facilities are modern movements of the earth's crust. In this paper, we outlined a method for predicting modern movements of the earth's crust based on artificial neural networks. On the basis of the predicted kinematic characteristics of the earth's crust, it is possible to identify dangerous zones by the manifestation of geodynamic processes: zones of tension, compression, zones of accumulation of elastic energy, and so on. Preliminary results obtained on the presented neural network architecture have shown a positive outlook for the application of this methodology for geodynamic zoning tasks.","PeriodicalId":34147,"journal":{"name":"Gornye nauki i tekhnologii","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45618120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

NEW DIALCYDTHIOPHOPHATE COLLECTOR FOR FLOTATION OF SILVER-CONTAINING ORES 新型二硫代磷酸钠浮选含银矿石捕收剂

Gornye nauki i tekhnologii Pub Date : 2018-12-31 DOI: 10.17073/2500-0632-2018-3-45-53

V. Ryaboy, S. Levkovets, G. Efremova, O. Koval

{"title":"NEW DIALCYDTHIOPHOPHATE COLLECTOR FOR FLOTATION OF SILVER-CONTAINING ORES","authors":"V. Ryaboy, S. Levkovets, G. Efremova, O. Koval","doi":"10.17073/2500-0632-2018-3-45-53","DOIUrl":"https://doi.org/10.17073/2500-0632-2018-3-45-53","url":null,"abstract":"In order to create a more effective dialkyldithiophosphate collector used in combination with potassium butylxanthate in flotation of silver ores (m. Dukat), the effect of a number of dialkyldithiophosphate collectors was studied depending on their surface-active properties and hydrophobic ability. It is shown that their collective strength, with close hydrophobic ability, increases as their surfaceactive properties increase and reaches a maximum at a surface tension of 42-45.3 mN/m, and then begins to decrease. The reduction of the hydrophobic ability, even with their high surface-active properties, for example, for hydrolyzed samples, significantly reduces the recovery of silver. Taking into account the studied influence of surface activity and the hydrophobic ability of the reagents, a more efficient dialkyldithiophosphate collector has been developed, increasing silver recovery compared with the standard reagent by 1.8-3.4 %, depending on the ore enrichment. Improving the extraction of silver without reducing the selectivity of the process also contributes to the optimal cost ratio of the proposed dialkyldithiophosphate collector and xanthate.","PeriodicalId":34147,"journal":{"name":"Gornye nauki i tekhnologii","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43223894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

INVESTIGATION AND OPTIMIZATION OF A CLOSED CIRCUIT CRUSHING OF COPPERMOLYBDENUM ORE 铜钼矿闭路破碎工艺的研究与优化

Gornye nauki i tekhnologii Pub Date : 2018-12-31 DOI: 10.17073/2500-0632-2018-3-35-44

V. Morozov, T. Nikolaeva, I. Churelchuluun

{"title":"INVESTIGATION AND OPTIMIZATION OF A CLOSED CIRCUIT CRUSHING OF COPPERMOLYBDENUM ORE","authors":"V. Morozov, T. Nikolaeva, I. Churelchuluun","doi":"10.17073/2500-0632-2018-3-35-44","DOIUrl":"https://doi.org/10.17073/2500-0632-2018-3-35-44","url":null,"abstract":"To control the processes of ore treatment proposed adapted to the conditions of a closed cycle crushing-screening criterion \"output productive class -2 + 10 mm\", reflecting the effectiveness of all processes. The dependence of the outputs of the individual classes of ore and the proposed optimization criterion parameters of the grinding process shows their relationship with the energy intensity of the process. It is shown that the increase in the load on the screen causes a decrease in the screening efficiency and an increase in the mass fraction of class +2 mm in the circulating ore. Excessive increase in the width of the discharge gap of the crusher causes an increase in the output of the circulating product and an increase in energy consumption. Reducing the discharge gap of less than 7.5 mm leads to an increase in the output of the class - 2 mm. An improved system and algorithm for optical analysis of ore size was proposed and tested. The sensors for controlling the granulometric composition of ore are located above the conveyors for the transportation of over-and under-mortar products of the screening operation. The optical analysis mode provides for the sequential switching on / off of feeding conveyors and crushers, thereby ensuring the flow of the crushed product into the measurement zone from one crusher. The total duration of the analysis of ore from 6 crushers is 12 minutes, which does not affect the final performance of the device of crushing. The application of the developed algorithm can significantly improve the accuracy of the analysis of the size of crushed ore and reduce the power consumption during the processing of ore.","PeriodicalId":34147,"journal":{"name":"Gornye nauki i tekhnologii","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48108154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ON SEISMIC TOMOGRAPHY ALGORITHM TO PREDICT DISCONTINUITIES IN COAL SEAMS 煤层结构不连续预测的地震层析成像算法

Gornye nauki i tekhnologii Pub Date : 2018-12-31 DOI: 10.17073/2500-0632-2018-4-21-33

A. Antsiferov, A. Glukhov, V. Tumanov, D. V. Son, S. P. Olenjuk

{"title":"ON SEISMIC TOMOGRAPHY ALGORITHM TO PREDICT DISCONTINUITIES IN COAL SEAMS","authors":"A. Antsiferov, A. Glukhov, V. Tumanov, D. V. Son, S. P. Olenjuk","doi":"10.17073/2500-0632-2018-4-21-33","DOIUrl":"https://doi.org/10.17073/2500-0632-2018-4-21-33","url":null,"abstract":"The article describes the algorithm for seismic imaging data processing that enables detecting and evaluating geological anomalies based on the system of specific criteria. Employing the algorithm we can complete the process of profile record, amplitude and velocity spectra computation, filtering and imaging of T-X curves. Subsequently computation and statistical processing of kinematic and dynamic parameters are made in the selected velocity windows. The main procedures for the algorithm include tomographic recovery of wavefield parameters in the plane of extraction panel, detection and interpretation of anomalous zones based on the prediction criteria to determine type of the discontinuity. There is a good reason that tomography in the plane of extraction panel shall be made in velocity windows of the dedicated wavetrains step by step for the main informative parameters. Analysis of the velocity distribution for the amplitude module maximum provides high accuracy when it comes to detect anomalous zones. This parameter is marked by relative independence on chance factors. Analysis of typical wavetrain frequency shift is determining factor indicative not only of the discontinuity but also of its type. Recording of wavetrain amplitude distribution is characterized by high accuracy in terms of anomalous zone detection. However, recording is complicated by dependence on a host of chance factors. The other parameters have much lesser quality and can be used as auxiliary. The algorithm is implemented into software capable to computerize most time-consuming operations. Use of this algorithm is illustrated as a case study for the results of data analysis and interpretation for seismic exploration at 37К10-В longwall panel section in Kuzembaev Mine (Kazakhstan).","PeriodicalId":34147,"journal":{"name":"Gornye nauki i tekhnologii","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67729618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

FOREIGN EXPERIENCE OF THE USE OF V-TYPE DISC CUTTERS IN TUNNELING AS A REFERENCE POINT FOR PROSPECTIVE STUDIES IN RUSSIA 国外在隧道掘进中使用v型圆盘切割机的经验可作为俄罗斯前瞻性研究的参考点

Gornye nauki i tekhnologii Pub Date : 2018-12-31 DOI: 10.17073/2500-0632-2018-4-41-50

E. Averin

{"title":"FOREIGN EXPERIENCE OF THE USE OF V-TYPE DISC CUTTERS IN TUNNELING AS A REFERENCE POINT FOR PROSPECTIVE STUDIES IN RUSSIA","authors":"E. Averin","doi":"10.17073/2500-0632-2018-4-41-50","DOIUrl":"https://doi.org/10.17073/2500-0632-2018-4-41-50","url":null,"abstract":"Equipping of TBMs with rock cutting tools in the modern foreign practice of tunneling is based on the usage of CCS-type disc cutters. But there is also another type of tool for rock destruction when tunneling. It is a V-type disc cutter. As practice shows, in some situations it can provide greater work efficiency than a standard tool. Domestic research in this direction is mainly limited to the study of V-type tools of relatively small diameter for equipping roadheaders. Thus, this experience cannot be applied, if necessary, to the tunneling operations with TBM. Therefore, the studying of foreign experience on this issue is advisable. The paper analyzes studies conducted by foreign experts in the process of tunneling for various purposes in Turkey in the first decade of this century. These studies include the determination of a wide range of physical and technical properties of rocks, laboratory and field tests to determine the strength characteristics of the rock destruction process, comparison of laboratory, field and theoretical values of forces and energy performance of TBMs. As a result of the tests, it was found that the effectiveness of rock destruction is determined not only by their strength, but also by struc-tural and texture features. Differences were also observed when comparing laboratory experiments with field data, and comparing laboratory and full-scale force values on disc cutters in the process of rock destruction with theoretical values. In addition, the prospective areas of application of V-type disk cutters include the destruction of viscous non-abrasive rocks with a small amount of mineral inclusions or, with some reservations, the destruction of very hard and abrasive rocks. Not all conclusions made on the basis of the analysis performed coincide with the opinions of the authors of the initial studies, therefore, for a more complete understanding of the topic, it is recommended to read the literature (especially foreign literature) from the list of quoted sources.","PeriodicalId":34147,"journal":{"name":"Gornye nauki i tekhnologii","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67729659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

ESTABLISHMENT OF REGULARITY OF CHANGES IN CHEMICAL CHARACTERISTICS OF INTERMETALLIDES OF ALUMINUM SYSTEMS - LANTANIDES OF COMPOUNDS Al11Ln3, β-Al11Ln3 AND Al3Ln 铝系金属间化合物化学特性变化规律的建立-化合物Al11Ln3、β-Al11Ln3和Al3Ln的镧系化合物

Gornye nauki i tekhnologii Pub Date : 2018-08-12 DOI: 10.17073/2500-0632-2018-2-42-48

M. Chamanova, S. Akhmedov, S. Z. Nazhmudinov, A. Badalov

{"title":"ESTABLISHMENT OF REGULARITY OF CHANGES IN CHEMICAL CHARACTERISTICS OF INTERMETALLIDES OF ALUMINUM SYSTEMS - LANTANIDES OF COMPOUNDS Al11Ln3, β-Al11Ln3 AND Al3Ln","authors":"M. Chamanova, S. Akhmedov, S. Z. Nazhmudinov, A. Badalov","doi":"10.17073/2500-0632-2018-2-42-48","DOIUrl":"https://doi.org/10.17073/2500-0632-2018-2-42-48","url":null,"abstract":"Ensuring the effective development of industries based on natural resources, taking into account the necessary qualitative scientific justification, balancing the reasonable level of scientific and technological progress, is justified by the creation of new materials with specified characteristics. For this, fundamental studies of the physico-chemical and thermodynamic properties of various systems, in particular intermetallides (MI), are an important applied problem. At present, the study of aluminum-based metal systems involving rare-earth metals becomes especially urgent. The problem of determining the regularities of the changes in the thermochemical characteristics of the IM aluminum-lanthanide systems of the α-Al11Ln3, β- Al11Ln3 and Al3Ln compositions is considered, by refining the values of the temperature and melting enthalpy using semiempirical and calculated methods that allow obtaining fairly complete characteristics on the temperature and enthalpy of melting of the IM compositions of the rich aluminum with a demand in modern technology.","PeriodicalId":34147,"journal":{"name":"Gornye nauki i tekhnologii","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67729450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0