Annales De Chimie-science Des Materiaux最新文献_第4页

Explicit Study of Epoxy/ Momordica Angustisepala Fiber and Rice Husk Ash Nanoparticle Composites for Roofing Sheet Application 环氧树脂/苦瓜纤维/稻壳灰纳米颗粒复合屋面板材料的研究

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Annales De Chimie-science Des Materiaux Pub Date : 2020-12-30 DOI: 10.18280/acsm.440601

Nwoji Clifford Ugochukwu, Aigbodion Victor Sunday, A. M. Sani, Obetta Emmanuel Chinonso

引用次数: 1

Influence of Meso-Structure Parameters on Wave Propagation in Soil-Rock Mixture 细观结构参数对岩土混合体中波浪传播的影响

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Annales De Chimie-science Des Materiaux Pub Date : 2020-10-31 DOI: 10.18280/acsm.440510

Fei Zhang, Kui Wang, Yaru Dang, Guoyin Wu

引用次数: 3

Extended Wide Band Gap Amorphous ZnO Thin Films Deposited by Spray Pyrolysis 喷雾热解制备扩展宽带隙非晶ZnO薄膜

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Annales De Chimie-science Des Materiaux Pub Date : 2020-10-31 DOI: 10.18280/acsm.440507

N. Guermat, W. Daranfed, K. Mirouh

{"title":"Extended Wide Band Gap Amorphous ZnO Thin Films Deposited by Spray Pyrolysis","authors":"N. Guermat, W. Daranfed, K. Mirouh","doi":"10.18280/acsm.440507","DOIUrl":"https://doi.org/10.18280/acsm.440507","url":null,"abstract":"Received: 25 May 2020 Accepted: 10 September 2020 In this work, the ZnO thin films were deposited on substrates heated in a temperature varied between 250 to 400°C with a step of 50°C. The solution used for this deposition is composed of methanol and Zinc acetate. The XRD analysis confirmed that the deposited ZnO thin layers have a hexagonal wurtzite high quality with a preferential orientation (100) a-axis perpendicular to the substrate. The crystallite size is calculated using the Debye-Scherrer formula, the latter varies between 32-61 nm. Analysis by UVVisible spectrophotometer is an important characteristic to assess the quality of the deposited layers. The prepared samples showed a high transmission which is higher than 82% in the UV-Vis region and also observed the presence of two phases leading to two different optical band gaps for substrate temperature at 250 and 300°C. The direct optical band gap energy calculated from the transmittance spectra was decreased with augmentation of substrate temperature. The minimum value of Urbach energy of ZnO thin film was achieved with 400°C. The measured contact angles are less than 90° for all the prepared samples confirming the hydrophilic character of all the films. The conductivity was ranged from 0.025 to 1.033 (Ωcm) with increasing Ts.","PeriodicalId":7897,"journal":{"name":"Annales De Chimie-science Des Materiaux","volume":"70 1","pages":"347-352"},"PeriodicalIF":0.8,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85847504","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: 6

Study the Impact of Drilling Process Parameters on Natural Fiber Reinforced Herringbone Epoxy Composites 研究钻孔工艺参数对天然纤维增强人字形环氧复合材料的影响

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Annales De Chimie-science Des Materiaux Pub Date : 2020-10-31 DOI: 10.18280/acsm.440506

Nagamadhu Mahadevappa, V. Shankar, S. Sehgal, Rajath Upadhya

{"title":"Study the Impact of Drilling Process Parameters on Natural Fiber Reinforced Herringbone Epoxy Composites","authors":"Nagamadhu Mahadevappa, V. Shankar, S. Sehgal, Rajath Upadhya","doi":"10.18280/acsm.440506","DOIUrl":"https://doi.org/10.18280/acsm.440506","url":null,"abstract":"Received: 16 December 2019 Accepted: 10 July 2020 Common fiber composite overlays are attractive for a few applications, (for example, aviation and flying machine auxiliary parts) because of their predominant properties and bio-degradable. Typically, mechanical drilling process parameters are significant effect final machining process outcomes. It covers drilling performance like convectional drilling, grinding, vibration-influence twist drilling, and rapid boring, drilling apparatus geometry and materials, drilling actuated delamination and its smothering methodologies, thrust power, and wear rate. This paper aimed to address the effect and ranking of process parameters on trust force, torque, and delamination at both entry and exit of the hole sisal fabric herringbone reinforced epoxy composites. The herringbone woven sisal fabric reinforced epoxy composite is fabricated using conventional compression molding technique. The result shows that at higher speed and feed rate delamination at both entrance and exit, thrust force, and toque decreases. Optimum drill diameter found from 6 to 10 mm to obtain minimum responses. As four output parameters are deciding quality of drilled hole, further grey regression analysis is used to study the ranking of output responses. Form grey regression analysis it is found that for 2700 rpm spindle speed, 60 mm/min feed and 8 mm diameter exhibit minimum effort.","PeriodicalId":7897,"journal":{"name":"Annales De Chimie-science Des Materiaux","volume":"28 1","pages":"339-345"},"PeriodicalIF":0.8,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84231375","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: 9

Effect of Industrial Waste on Strength Properties of Concrete 工业废料对混凝土强度性能的影响

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Annales De Chimie-science Des Materiaux Pub Date : 2020-10-31 DOI: 10.18280/acsm.440508

B. V. Kavyateja, P. Reddy

{"title":"Effect of Industrial Waste on Strength Properties of Concrete","authors":"B. V. Kavyateja, P. Reddy","doi":"10.18280/acsm.440508","DOIUrl":"https://doi.org/10.18280/acsm.440508","url":null,"abstract":"Received: 20 December 2019 Accepted: 18 August 2020 Industrial wastes generally pumped into water bodies and soil that would pollute the atmosphere. As a control measure, industrial wastes products utilized as waste building materials. In the present research, waste products from various industries like illuminate sludge and glass bottle powder used in different dosages as a replacement for fine aggregate and metakaolin used as a cement replacement. Split tensile strength and compressive strength of the concrete samples examined for M30 grade. Fine aggregate is substituted by glass bottle powder (i.e. 10 to 40%) and illuminate sludge (i.e. 10 to 30%). Metakaolin substituted for cement replacement (i.e. 4 to 12%). Glass bottle does not pollute the atmosphere, but the disposal of waste glass results wastage of land. Thereby glass bottle powder can be utilized as a cement replacement in the construction industry. Then the metakaolin and illuminate sludge are the waste products from the titanium product. The experiment performed to assess the strength properties by incorporating various industrial wastes in different dosages. Physical tests of all three products have carried out according to the code requirements. Three specimens have been tested for each industrial waste products ratio to examine the tensile and compressive strength of concrete at 7th day, 14th day and 28th day and eventually to cure to achieve the optimum strength of concrete. Addition of these industrial wastes into the concrete showed an outstanding improvement in modulus of rupture, split tensile strength and compressive strength at an early and later ages.","PeriodicalId":7897,"journal":{"name":"Annales De Chimie-science Des Materiaux","volume":"3 1","pages":"353-358"},"PeriodicalIF":0.8,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74287873","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: 6

Synthesis and Characterization of In-Situ AA8011-TiB2 Composites Produced by Flux Assisted Synthesis 助熔剂原位合成AA8011-TiB2复合材料的合成与表征

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Annales De Chimie-science Des Materiaux Pub Date : 2020-10-31 DOI: 10.18280/acsm.440505

M. S. B. Munivenkatappan, S. Shanmugam, A. Veeramani

引用次数: 2

Preparation and Characterization of Matrix Hybrid Membranes Polyvinylidene Fluoride/Polyvinylpyrrolidone/Silica Gel/Zinc Oxide for Cr(VI) Removal from Water 聚偏氟乙烯/聚乙烯吡咯烷酮/硅胶/氧化锌基体杂化膜的制备及表征

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Annales De Chimie-science Des Materiaux Pub Date : 2020-10-31 DOI: 10.18280/acsm.440502

M. Chabane, C. Melkaoui, B. Dahmani, S. Belalia

引用次数: 2

Seismic Response of Reinforced Concrete Frame-Shear Wall Structure with Metal Rubber-Based Damper in Coupling Beam 耦合梁中金属橡胶减振器的钢筋混凝土框架-剪力墙结构的地震响应

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Annales De Chimie-science Des Materiaux Pub Date : 2020-10-31 DOI: 10.18280/acsm.440503

Yagebai Zhao, Yidian Dong

{"title":"Seismic Response of Reinforced Concrete Frame-Shear Wall Structure with Metal Rubber-Based Damper in Coupling Beam","authors":"Yagebai Zhao, Yidian Dong","doi":"10.18280/acsm.440503","DOIUrl":"https://doi.org/10.18280/acsm.440503","url":null,"abstract":"Received: 22 May 2020 Accepted: 8 August 2020 In reinforced concrete (RC) frame-shear wall structure, the coupling beam needs to yield before the wall limbs are damaged, in order to dissipate the energy of the external load. However, the coupling beam has a limited energy dissipation capacity. Once severely damaged, the coupling beam is difficult to be repaired, which hinders the structural recovery after an earthquake. Considering excellence of metal rubber (MR) in hysteresis energy dissipation and deformation self-reset, this paper changes the energy dissipation mode of the coupling beam by adding an MR damper to the beam. Firstly, the stressstrain curve of MR was obtained through mechanical experiments, and used to construct the constitutive model of the material. Then, the parameters of the damper were designed based on the constitutive model. Next, the MR dampers were installed on the coupling beams of a 12-layer RC frame-shear wall structure. The authors analyzed the time histories of the elastoplastic dynamics of the structure under seismic actions, and calculated the seismic responses like interlayer displacement, absolute acceleration, and base shear force. These parameters were compared with those of the structure without the damper, and the output-deformation envelope curve of the damper on each layer were obtained. In this way, the authors studied how the parameters of the MR damper affect the seismic response of RC frame-shear wall structure. The results show that adding the MR damper to coupling beam can effectively weaken the seismic response of the RC frame-shear wall structure.","PeriodicalId":7897,"journal":{"name":"Annales De Chimie-science Des Materiaux","volume":"6 1","pages":"319-326"},"PeriodicalIF":0.8,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84514467","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

Experimental Study on Shear Behavior of Reinforced Concrete Sandwich Deep Beam 钢筋混凝土夹层深梁抗剪性能试验研究

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Annales De Chimie-science Des Materiaux Pub Date : 2020-10-31 DOI: 10.18280/acsm.440501

Vaka Gopi, K. K. Swamy, A. Gopi, V. Narayana

引用次数: 0

Variation in Composition of Aluminium Alloy Al6463 on Wear Characteristics and Compressive Strength Al6463铝合金成分变化对磨损特性和抗压强度的影响

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Annales De Chimie-science Des Materiaux Pub Date : 2020-10-31 DOI: 10.18280/acsm.440509

Amardeepak Mahadikar, E. Mamatha, S. Murthy, N. B. Doddapattar

{"title":"Variation in Composition of Aluminium Alloy Al6463 on Wear Characteristics and Compressive Strength","authors":"Amardeepak Mahadikar, E. Mamatha, S. Murthy, N. B. Doddapattar","doi":"10.18280/acsm.440509","DOIUrl":"https://doi.org/10.18280/acsm.440509","url":null,"abstract":"Received: 4 May 2020 Accepted: 22 August 2020 Aluminium is one of the widely used metals in industrial sector owing to its specific features and its commercial production started in late 19th century. In its natural form it is combined with oxygen and other elements and is the third most abundant metal in the earth’s crust. It can be machined easily and has a Face Centred Cubic (FCC) structure. Aluminium alloys are an attractive alternative to ferrous materials for tribological applications due to their low density and high thermal conductivity. The microstructure of aluminium alloys can be modified and mechanical properties can be improved by alloying, cold working and heat treatment. The present work mainly focuses on the study of the effect of variation in composition on the wear characteristics and compressive strength of aluminium alloy Al6463 by varying the compositions of the two major alloying elements, Magnesium (Mg) and Silicon (Si) in the alloy. Four specimens of the aluminium alloy Al6463 are prepared each for Magnesium composition varying b/w (0.5 to 0.875%) and Silicon composition varying b/w (0.2 to 0.575%). Wear and compression tests were carried out as per ASTM standard. The results of the wear test indicate that the least wear rate was obtained for specimens of 0.750% Mg and 0.575% Si composition of the alloy Al6463 at a higher load of 1.5 kg. Also, the compression test results indicate that the specimens with 0.750% Mg and 0.575% Si compositions of the alloy Al6463 exhibit better compressive strength.","PeriodicalId":7897,"journal":{"name":"Annales De Chimie-science Des Materiaux","volume":"89 1","pages":"359-364"},"PeriodicalIF":0.8,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79934936","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