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Refractories and Industrial Ceramics最新文献

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Refractory Materials for High-Temperature Pulsed Installations 用于高温脉冲装置的耐火材料
IF 0.4 4区 材料科学
Refractories and Industrial Ceramics Pub Date : 2024-07-09 DOI: 10.1007/s11148-024-00879-5
A. V. Fedotov, A. V. Belyakov, I. D. Kashcheev
{"title":"Refractory Materials for High-Temperature Pulsed Installations","authors":"A. V. Fedotov,&nbsp;A. V. Belyakov,&nbsp;I. D. Kashcheev","doi":"10.1007/s11148-024-00879-5","DOIUrl":"10.1007/s11148-024-00879-5","url":null,"abstract":"<p>The results of studies into high and super refractory materials for use in the Cowper heaters of high-temperature pulsed installations are presented. It is shown that long-term operation of corundum refractories (up to 1.5 years) at temperatures of 1750 – 1800°C has an insignificant effect on the thermophysical properties of the material. The materials and designs of the packing and lining elements of Cowper heaters for different layers and temperatures are selected. The gas flow velocity, which ensures a fixed position of the ball packed bed, is determined. The efficient packing design improves heat transfer and reduces the Cowper dimensions by a factor of 3.75.</p>","PeriodicalId":751,"journal":{"name":"Refractories and Industrial Ceramics","volume":"64 5","pages":"502 - 508"},"PeriodicalIF":0.4,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141567432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structure Formation of a Ceramic Composite of the Al2O3–ZrO2 System During Strontium Hexaaluminate Synthesis During Firing 烧制过程中六亚铝酸锶合成 Al2O3-ZrO2 系陶瓷复合材料的结构形成
IF 0.4 4区 材料科学
Refractories and Industrial Ceramics Pub Date : 2024-07-09 DOI: 10.1007/s11148-024-00878-6
P. M. Pletnev, E. S. Semantsova
{"title":"Structure Formation of a Ceramic Composite of the Al2O3–ZrO2 System During Strontium Hexaaluminate Synthesis During Firing","authors":"P. M. Pletnev,&nbsp;E. S. Semantsova","doi":"10.1007/s11148-024-00878-6","DOIUrl":"10.1007/s11148-024-00878-6","url":null,"abstract":"<p>Experimental results for structure formation of a ceramic composite of the Al<sub>2</sub>O<sub>3</sub>–ZrO<sub>2</sub> system with formation of reinforcing strontium hexaaluminate (SrAl<sub>12</sub>O<sub>19</sub>) during firing are presented. Lamellar crystals of SrAl<sub>12</sub>O<sub>19</sub> are shown to be uniformly distributed in the composite structure, the strength of which is increased by 30% if SrAl<sub>12</sub>O<sub>19</sub> is synthesized during firing of the ceramic with pre-synthesized strontium zirconate (precursor) introduced into the charge. Introduction of pre-synthesized SrAl<sub>12</sub>O<sub>19</sub> into the composite charge followed by mixing and grinding does not harden the composite.</p>","PeriodicalId":751,"journal":{"name":"Refractories and Industrial Ceramics","volume":"64 5","pages":"497 - 501"},"PeriodicalIF":0.4,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141567430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electrodynamic Properties of (BeO + TiO2)-Ceramics in the Centimeter Wavelength Range 厘米波长范围内（BeO + TiO2）陶瓷的电动特性
IF 0.4 4区 材料科学
Refractories and Industrial Ceramics Pub Date : 2024-07-08 DOI: 10.1007/s11148-024-00889-3
A. I. Malkin, N. A. Drokin, V. S. Kiiko, A. N. Korotkov, V. A. Chechetkin
{"title":"Electrodynamic Properties of (BeO + TiO2)-Ceramics in the Centimeter Wavelength Range","authors":"A. I. Malkin,&nbsp;N. A. Drokin,&nbsp;V. S. Kiiko,&nbsp;A. N. Korotkov,&nbsp;V. A. Chechetkin","doi":"10.1007/s11148-024-00889-3","DOIUrl":"10.1007/s11148-024-00889-3","url":null,"abstract":"<p>Electrodynamic properties of composite (BeO + TiO<sub>2</sub>)-ceramics in the frequency range 8 – 12 GHz are studied. An increase in ceramic sintering temperature from 1823 to 1933 K after introducing TiO<sub>2</sub> micro- and nanopowders into BeO mixtures makes it possible to influence the efficiency of (BeO + TiO<sub>2</sub>)-ceramics as an absorbing component of microwave radiation by increasing the modulus of imaginary and real parts of the dielectric constant. Additional reduction annealing in a hydrogen atmosphere at 1073 K further changes the ceramic electrical conductivity and enhances the effect of its ability to absorb UHF-radiation.</p>","PeriodicalId":751,"journal":{"name":"Refractories and Industrial Ceramics","volume":"64 5","pages":"555 - 561"},"PeriodicalIF":0.4,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141567426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Determining the Natural Vibration Frequencies of Refractories 确定耐火材料的自然振动频率
IF 0.4 4区 材料科学
Refractories and Industrial Ceramics Pub Date : 2024-07-08 DOI: 10.1007/s11148-024-00890-w
V. A. Stenin
{"title":"Determining the Natural Vibration Frequencies of Refractories","authors":"V. A. Stenin","doi":"10.1007/s11148-024-00890-w","DOIUrl":"10.1007/s11148-024-00890-w","url":null,"abstract":"<p>Refractories widely used in metallurgy and power engineering operate under constant dynamic impacts. In this regard, it is proposed to use elements of modal analysis to diagnose refractories. A test bench for diagnosing refractories has been developed, its approbation has been carried out, and the feasibility of using the proposed method to improve the quality of refractory materials has been shown.</p>","PeriodicalId":751,"journal":{"name":"Refractories and Industrial Ceramics","volume":"64 5","pages":"562 - 564"},"PeriodicalIF":0.4,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141567436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Refined Express Method for Evaluating the Porous Structure of Ceramic Materials 用于评估陶瓷材料多孔结构的改良表达法
IF 0.4 4区 材料科学
Refractories and Industrial Ceramics Pub Date : 2024-07-08 DOI: 10.1007/s11148-024-00874-w
Yu.N. Kryuchkov
{"title":"Refined Express Method for Evaluating the Porous Structure of Ceramic Materials","authors":"Yu.N. Kryuchkov","doi":"10.1007/s11148-024-00874-w","DOIUrl":"10.1007/s11148-024-00874-w","url":null,"abstract":"<p>The express method for evaluating the porous structure of ceramic materials was refined by replacing a smooth change in gas pressure with a stepwise change. After determining the average radius, the maximum radius was determined using the pressure drop until only one chain of gas bubbles remained. The average coordination number for the solid phase and the coefficient of capillary tortuosity were calculated. The experimental and calculated mean radii are in good agreement, whereas the tortuosity coefficients differ.</p>","PeriodicalId":751,"journal":{"name":"Refractories and Industrial Ceramics","volume":"64 5","pages":"480 - 483"},"PeriodicalIF":0.4,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141567428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of Fire-Resistant Phosphate Adhesive Based on Alumina and Aluminosilicate Dispersed Industrial Waste 基于氧化铝和硅酸铝分散工业废料的耐火磷酸盐粘合剂的开发
IF 0.4 4区 材料科学
Refractories and Industrial Ceramics Pub Date : 2024-07-08 DOI: 10.1007/s11148-024-00888-4
V. A. Abyzov, N. E. Posadnova
{"title":"Development of Fire-Resistant Phosphate Adhesive Based on Alumina and Aluminosilicate Dispersed Industrial Waste","authors":"V. A. Abyzov,&nbsp;N. E. Posadnova","doi":"10.1007/s11148-024-00888-4","DOIUrl":"10.1007/s11148-024-00888-4","url":null,"abstract":"<p>The results of studying the possibility of producing fire-resistant phosphate glue based on aluminosilicate and high-alumina industrial waste are presented. Using the methods of physico-chemical analysis, the phase composition of cured adhesive structures was studied, and the change in the composition after drying and firing was analyzed. Disperse-filled fire-resistant liquid adhesives were obtained that remain stable for at least 90 days. The main properties of adhesive refractory compositions are provided. The maximum application temperature of such materials was found to be 1700°C.</p>","PeriodicalId":751,"journal":{"name":"Refractories and Industrial Ceramics","volume":"64 5","pages":"550 - 554"},"PeriodicalIF":0.4,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141567425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Finite Element Simualtion of Heat Generation in the Brake Unit of Heavy-Duty Tribosystems 重型摩擦系统制动单元发热的有限元模拟
IF 0.4 4区 材料科学
Refractories and Industrial Ceramics Pub Date : 2024-07-08 DOI: 10.1007/s11148-024-00891-9
F. F. Yusubov
{"title":"Finite Element Simualtion of Heat Generation in the Brake Unit of Heavy-Duty Tribosystems","authors":"F. F. Yusubov","doi":"10.1007/s11148-024-00891-9","DOIUrl":"10.1007/s11148-024-00891-9","url":null,"abstract":"<p>In the presented research, the heat distribution on the contact surfaces of the brake system of a drilling rig was studied using thermal simulation. The friction temperature distribution model on contact surfaces was obtained using the finite element method in COMSOL Multiphysics 5.5. As a prototype, the mobile drilling rig designed for drilling wells with a depth of up to 3000 m was included in the model. The brake systems of drilling rigs usually use a steel disc and a pad made of a composite material. In this study, a pair of steel and a new asbestos-free organic composite was selected. Based on the selected parameters, the thermal model was used to determine the temperature distribution mechanism along the contact surface of the disc and the brake pad. The highest friction temperature was observed during the first 2 – 4 sec of the braking cycle.</p>","PeriodicalId":751,"journal":{"name":"Refractories and Industrial Ceramics","volume":"64 5","pages":"565 - 569"},"PeriodicalIF":0.4,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141567435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Magnesium-Thermal Self-Propagating High-Temperature Synthesis of Silicon Carbide Using Carbon Fibers as the Carbon Source 以碳纤维为碳源的碳化硅镁热自蔓延高温合成法
IF 0.4 4区 材料科学
Refractories and Industrial Ceramics Pub Date : 2024-07-08 DOI: 10.1007/s11148-024-00875-9
V. V. Zakorzhevskii, N. I. Mukhina
{"title":"Magnesium-Thermal Self-Propagating High-Temperature Synthesis of Silicon Carbide Using Carbon Fibers as the Carbon Source","authors":"V. V. Zakorzhevskii,&nbsp;N. I. Mukhina","doi":"10.1007/s11148-024-00875-9","DOIUrl":"10.1007/s11148-024-00875-9","url":null,"abstract":"<p>This paper presents the results of studies on silicon carbide production by self-propagating high-temperature synthesis. To provide the necessary energy for the process, the synthesis was performed using magnesium-thermal reduction of silicon dioxide in an argon atmosphere. This study was characterized by the use of carbon fibers as a carbon source. It was determined that during magnesium-thermal synthesis, hexagonal particles with a size of 1 – 2 μm and a thickness of approximately 0.2 – 0.3 μm were mainly formed. X-ray phase analysis showed the predominant formation of a cubic syngony of silicon carbide.</p>","PeriodicalId":751,"journal":{"name":"Refractories and Industrial Ceramics","volume":"64 5","pages":"484 - 487"},"PeriodicalIF":0.4,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141567434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Features of Obtaining Ceramic Materials from Sintering-Active Powders 从烧结活性粉末中获取陶瓷材料的特点
IF 0.4 4区 材料科学
Refractories and Industrial Ceramics Pub Date : 2024-07-08 DOI: 10.1007/s11148-024-00884-8
V. G. Maksimov, N. M. Varrik, V. G. Babashov
{"title":"Features of Obtaining Ceramic Materials from Sintering-Active Powders","authors":"V. G. Maksimov,&nbsp;N. M. Varrik,&nbsp;V. G. Babashov","doi":"10.1007/s11148-024-00884-8","DOIUrl":"10.1007/s11148-024-00884-8","url":null,"abstract":"<p>Microstructure defects arising in the manufacture of oxide ceramics based on aluminum oxide were studied. Several common problems arising in the manufacture of ceramic materials from fine-grained starting powders with high sintering activity as well as differences in the optimal properties of materials intended for use at high and moderate temperatures were considered. Samples of ceramic materials of the mullite–corundum system modified with zirconium dioxide were obtained by co-deposition of the initial powders followed by their grinding, pressing, and sintering. The fracture surfaces of samples were examined on a scanning electron microscope to study defects in the microstructure of powder ceramics. Characteristic defects in the microstructure were identified. The reasons for their appearance were explained. Possible ways to solve the problems of degradation of the properties of oxide ceramic materials were proposed based on technical literature data and the experimental results.</p>","PeriodicalId":751,"journal":{"name":"Refractories and Industrial Ceramics","volume":"64 5","pages":"526 - 532"},"PeriodicalIF":0.4,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141567431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Features of Manufacturing High-Heat-Resistant Ceramics Using Aluminum Hafnium Binder 使用铝铪粘合剂制造高耐热陶瓷的特点
IF 0.4 4区 材料科学
Refractories and Industrial Ceramics Pub Date : 2024-07-08 DOI: 10.1007/s11148-024-00885-7
M. S. Varfolomeev, A. S. Pokhorenko, G. I. Shcherbakova
{"title":"Features of Manufacturing High-Heat-Resistant Ceramics Using Aluminum Hafnium Binder","authors":"M. S. Varfolomeev,&nbsp;A. S. Pokhorenko,&nbsp;G. I. Shcherbakova","doi":"10.1007/s11148-024-00885-7","DOIUrl":"10.1007/s11148-024-00885-7","url":null,"abstract":"<p>The manufacturing processes and mechanical properties of ceramics based on fused corundum and an organic aluminum(hafnium binder were studied. Samples of ceramics with the composition Al<sub>2</sub>O<sub>3</sub>/HfO<sub>2</sub> were prepared. The features of the sintering process of the ceramic materials and their heat-treatment modes were studied. The quality of the front layer was assessed. The tensile strength in bending of the manufactured ceramic samples was tested. The microstructure of the ceramics consisted of grains of fused corundum, the surface of which was uniformly covered with a film of Al<sub>2</sub>O<sub>3</sub>–HfO<sub>2</sub> binder. The tensile strength in bending of the ceramic samples with an Al–Hf binder ranged from 1.1 to 5.5 MPa, which meets the requirements for industrial ceramic casting molds.</p>","PeriodicalId":751,"journal":{"name":"Refractories and Industrial Ceramics","volume":"64 5","pages":"533 - 536"},"PeriodicalIF":0.4,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141567427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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