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Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material最新文献

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Electrochemical behaviors of silicon wafers in silica slurry 硅片在硅浆中的电化学行为
Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material Pub Date : 2008-08-01 DOI: 10.1016/S1005-8850(08)60093-6
Xiaolan Song, Hai-pin Yang, Xun Shi, Xi He, G. Qiu
{"title":"Electrochemical behaviors of silicon wafers in silica slurry","authors":"Xiaolan Song, Hai-pin Yang, Xun Shi, Xi He, G. Qiu","doi":"10.1016/S1005-8850(08)60093-6","DOIUrl":"https://doi.org/10.1016/S1005-8850(08)60093-6","url":null,"abstract":"","PeriodicalId":100851,"journal":{"name":"Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material","volume":"37 1","pages":"495-499"},"PeriodicalIF":0.0,"publicationDate":"2008-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78349140","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: 4
Numerical simulation of the temperature field of titania-bearing BF slag heated in a microwave oven 微波炉加热含钛高炉矿渣温度场的数值模拟
Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material Pub Date : 2008-08-01 DOI: 10.1016/S1005-8850(08)60072-9
Liangying Wen, Chenguang Bai, Guibao Qiu, Jian Zhang, Shengfu Zhang, Zhanjun Long
{"title":"Numerical simulation of the temperature field of titania-bearing BF slag heated in a microwave oven","authors":"Liangying Wen,&nbsp;Chenguang Bai,&nbsp;Guibao Qiu,&nbsp;Jian Zhang,&nbsp;Shengfu Zhang,&nbsp;Zhanjun Long","doi":"10.1016/S1005-8850(08)60072-9","DOIUrl":"https://doi.org/10.1016/S1005-8850(08)60072-9","url":null,"abstract":"<div><p>Considering the characteristic of selective heating of microwave and the treatment of titania-bearing BF slag, a mathematical model for the heating of a slag specimen is developed. The temperature distribution in the specimen is studied by numerical simulation. The temperature in the center of the cylindrical slag specimen is the highest and the temperature decreases when the radius increases rapidly. In this case, the temperature rising rate decreases with heating time rapidly, and it tends to zero when the heating time is up to 150 s.</p></div>","PeriodicalId":100851,"journal":{"name":"Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material","volume":"15 4","pages":"Pages 379-384"},"PeriodicalIF":0.0,"publicationDate":"2008-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1005-8850(08)60072-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72282195","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
Novel titanium particles reinforced Zr-based bulk metallic glass composites prepared by infiltration casting 渗铸法制备新型钛颗粒增强锆基大块金属玻璃复合材料
Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material Pub Date : 2008-08-01 DOI: 10.1016/S1005-8850(08)60095-X
Cuimei Zhang, Xidong Hui, Meiling Wang, Guoliang Chen
{"title":"Novel titanium particles reinforced Zr-based bulk metallic glass composites prepared by infiltration casting","authors":"Cuimei Zhang,&nbsp;Xidong Hui,&nbsp;Meiling Wang,&nbsp;Guoliang Chen","doi":"10.1016/S1005-8850(08)60095-X","DOIUrl":"https://doi.org/10.1016/S1005-8850(08)60095-X","url":null,"abstract":"<div><p>A novel Ti/Zr<sub>41.2</sub>Ti<sub>13.8</sub>Cu<sub>12.5</sub>Ni<sub>10.0</sub>Be<sub>22.5</sub> composite was successfully prepared by infiltrating the melt into sintered Ti preform. It shows that the introduction of Ti particles into the composite results in an increase in elastic strain to 3% and an enhancement of the strength up to 2.1 GPa. High specific strength has been obtained because of the decrease in density of the composite. It is suggested that an improvement in the mechanical properties of the composite may be attributed to the generation of multiple shear bands and some deformation in the Ti particles.</p></div>","PeriodicalId":100851,"journal":{"name":"Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material","volume":"15 4","pages":"Pages 505-508"},"PeriodicalIF":0.0,"publicationDate":"2008-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1005-8850(08)60095-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72282193","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
Damping properties of fly ash/epoxy composites 粉煤灰/环氧树脂复合材料的阻尼性能
Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material Pub Date : 2008-08-01 DOI: 10.1016/S1005-8850(08)60096-1
Jian Gu, Gaohui Wu, Xiao Zhao
{"title":"Damping properties of fly ash/epoxy composites","authors":"Jian Gu,&nbsp;Gaohui Wu,&nbsp;Xiao Zhao","doi":"10.1016/S1005-8850(08)60096-1","DOIUrl":"https://doi.org/10.1016/S1005-8850(08)60096-1","url":null,"abstract":"<div><p>An inexpensive fly ash (FA), which is from a waste product, was employed to prepare fly ash/epoxy composites. The purpose of this study is to characterize the contributions of matrix viscoelasticity, hollow structure characteristic (porosity), and filler/matrix interface friction to the high vibration damping capacity of such composites. The damping properties of the composites were investigated in the temperature range of −40 to 150°C and in the frequency range of 10 to 800 Hz by using a tension-compression mode. The results indicate that the peak value of damping loss factor (tanδ) for the fly ash/epoxy composites can reach 0.70-0.90 in test specification, and the attenuation of damping loss factor is inconspicuous with increasing frequency. In addition, scanning electron microscope (SEM) was used to observe the morphology of the fly ash as well as its distribution in the matrix, which will help to analyze the effect of fly ash on the damping properties of the fly ash/epoxy composites.</p></div>","PeriodicalId":100851,"journal":{"name":"Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material","volume":"15 4","pages":"Pages 509-513"},"PeriodicalIF":0.0,"publicationDate":"2008-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1005-8850(08)60096-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72282194","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: 5
Numerical simulation of the temperature field of titania-bearing BF slag heated in a microwave oven 含钛高炉炉渣微波加热温度场的数值模拟
Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material Pub Date : 2008-08-01 DOI: 10.1016/S1005-8850(08)60072-9
L. Wen, C. Bai, G. Qiu, Jian Zhang, Shengfu Zhang, Z. Long
{"title":"Numerical simulation of the temperature field of titania-bearing BF slag heated in a microwave oven","authors":"L. Wen, C. Bai, G. Qiu, Jian Zhang, Shengfu Zhang, Z. Long","doi":"10.1016/S1005-8850(08)60072-9","DOIUrl":"https://doi.org/10.1016/S1005-8850(08)60072-9","url":null,"abstract":"","PeriodicalId":100851,"journal":{"name":"Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material","volume":"370 1","pages":"379-384"},"PeriodicalIF":0.0,"publicationDate":"2008-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74911096","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
Anticorrosion performance of the coating/metal system by electrochemical impedance spectra 电化学阻抗谱分析涂层/金属体系的防腐性能
Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material Pub Date : 2008-08-01 DOI: 10.1016/S1005-8850(08)60086-9
Yinghua Zhang, Lining Xu, Min-xu Lu, Pu Zhang
{"title":"Anticorrosion performance of the coating/metal system by electrochemical impedance spectra","authors":"Yinghua Zhang, Lining Xu, Min-xu Lu, Pu Zhang","doi":"10.1016/S1005-8850(08)60086-9","DOIUrl":"https://doi.org/10.1016/S1005-8850(08)60086-9","url":null,"abstract":"","PeriodicalId":100851,"journal":{"name":"Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material","volume":"4 1","pages":"457-460"},"PeriodicalIF":0.0,"publicationDate":"2008-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74270347","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
Preparation of IrO2+MnO2 coating anodes and their application in NaClO production IrO2+MnO2涂层阳极的制备及其在NaClO生产中的应用
Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material Pub Date : 2008-08-01 DOI: 10.1016/S1005-8850(08)60087-0
Yongle Ni, Huimin Meng, Dong Chen, Dongbai Sun, Hongying Yu
{"title":"Preparation of IrO2+MnO2 coating anodes and their application in NaClO production","authors":"Yongle Ni,&nbsp;Huimin Meng,&nbsp;Dong Chen,&nbsp;Dongbai Sun,&nbsp;Hongying Yu","doi":"10.1016/S1005-8850(08)60087-0","DOIUrl":"https://doi.org/10.1016/S1005-8850(08)60087-0","url":null,"abstract":"<div><p>To improve the durability as well as to reduce the cost of anodes, the IrO<sub>2</sub>+MnO<sub>2</sub> composite coating anodes for NaClO production were prepared by thermal decomposition. Scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction analysis (XRD) were carried out to investigate the morphologies, element distribution, and microstructure. The anodic polarization curves were employed to study the effect of sintering temperature on the Cl<sub>2</sub> evolution reaction (CER) of the electrodes. The accelerated life tests (ALT) and electrochemical impedance spectroscopy measurement (EIS) were utilized to investigate the stability. The rules of NaClO production were also studied by the static electrolysis experiment. The results indicate that sintering temperature has a significant influence on the CER properties as well as the ALT values of the electrodes. The electrode prepared at 400°C has the best CER properties and the longest ALT value.</p></div>","PeriodicalId":100851,"journal":{"name":"Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material","volume":"15 4","pages":"Pages 461-467"},"PeriodicalIF":0.0,"publicationDate":"2008-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1005-8850(08)60087-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72282186","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
Silicon assistant carbothermal reduction for SiC powders 碳化硅粉末的硅辅助碳热还原
Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material Pub Date : 2008-08-01 DOI: 10.1016/S1005-8850(08)60091-2
Kezhi Li, Jian Wei, Hejun Li, Chuang Wang, Gengsheng Jiao
{"title":"Silicon assistant carbothermal reduction for SiC powders","authors":"Kezhi Li,&nbsp;Jian Wei,&nbsp;Hejun Li,&nbsp;Chuang Wang,&nbsp;Gengsheng Jiao","doi":"10.1016/S1005-8850(08)60091-2","DOIUrl":"https://doi.org/10.1016/S1005-8850(08)60091-2","url":null,"abstract":"<div><p>The silicon assistant method to increase the reaction yield of carbothermal reduction of silica at a lower temperature is reported. The effect of silicon on the carbothermal reduction process has been investigated in detail. Compared with traditional reduction, the introduction of silicon can change the reaction path and further increase the conversion of silicon carbide at a lower temperature. It is considered that the assistant reduction consists of three steps: vaporizing and melting of silicon, formation of silicon monoxide, and synthesis of silicon carbide. The morphology of the synthesized SiC powders through the silicon assistant method can be affected apparently by the experimental temperature.</p></div>","PeriodicalId":100851,"journal":{"name":"Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material","volume":"15 4","pages":"Pages 484-488"},"PeriodicalIF":0.0,"publicationDate":"2008-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1005-8850(08)60091-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72282189","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: 12
Thermodynamic analysis of the Ti-Al-N system Ti-Al-N体系的热力学分析
Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material Pub Date : 2008-08-01 DOI: 10.1016/S1005-8850(08)60079-1
Jie Gao, Changrong Li, Na Wang, Zhenmin Du
{"title":"Thermodynamic analysis of the Ti-Al-N system","authors":"Jie Gao,&nbsp;Changrong Li,&nbsp;Na Wang,&nbsp;Zhenmin Du","doi":"10.1016/S1005-8850(08)60079-1","DOIUrl":"https://doi.org/10.1016/S1005-8850(08)60079-1","url":null,"abstract":"<div><p>Motivated by the application of (Ti, Al)N alloy compound in the coating layer, the ternary phase diagram of Ti-Al-N was analyzed by the calculation of the phase diagram (CALPHAD) technique. The isothermal sections of the Ti-Al-N ternary system were constructed and compared with the literature experimental results. The thermodynamic parameters of the Ti-Al-N ternary system and the related Ti-N and Al-N binary systems were adopted from literatures, whereas, those of the Ti-Al binary from the literatures were adjusted according to both the ternary and the binary phase equilibria. The consistency between the calculated results and the experimental data shows that considering the ternary thermodynamic relationship, the adjustments to the thermodynamic parameters of the related binaries are necessary.</p></div>","PeriodicalId":100851,"journal":{"name":"Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material","volume":"15 4","pages":"Pages 420-424"},"PeriodicalIF":0.0,"publicationDate":"2008-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1005-8850(08)60079-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72282200","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: 11
Scratch Behavior of High Speed Steels for Hot Rolls 热轧用高速钢的划伤行为
Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material Pub Date : 2008-08-01 DOI: 10.1016/S1005-8850(08)60076-6
Li Zhou, Da-le Sun, Changsheng Liu, Chunguang Li, L. Yao
{"title":"Scratch Behavior of High Speed Steels for Hot Rolls","authors":"Li Zhou, Da-le Sun, Changsheng Liu, Chunguang Li, L. Yao","doi":"10.1016/S1005-8850(08)60076-6","DOIUrl":"https://doi.org/10.1016/S1005-8850(08)60076-6","url":null,"abstract":"","PeriodicalId":100851,"journal":{"name":"Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material","volume":"29 1","pages":"402-406"},"PeriodicalIF":0.0,"publicationDate":"2008-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79705746","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: 4
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