共搜索到14862条信息，每页显示10条信息，共1487页。用时：0小时0分0秒461毫秒
; Abstract: Thermal residual stresses in polycrystalline diamond compact (PDC) cutter arising from the difference in thermal expansion between the polycrystalline diamond (PCD... and pressure are 1 450 ℃ and 5.5 GPa, respectively[4]. However, two severe issues may occur in the sintering process of PDC. Firstly, the mismatch of thermal expansion coefficients......
Microstructure evolution and thermal expansion of Cu-Zn alloy after high pressure heat treatment CHEN Yan1, 2, LIU Lin3, WANG Yue-hui4, LIU Jian-hua1, ZHANG Rui-jun1 1. State Key Laboratory... 066004, China Received 30 September 2010; accepted 18 February 2011 Abstract: The thermal expansion coefficients of Cu-Zn alloy before and after high pressure treatment were measured by thermal......
in expansion through interfaces. Their thermal conductivities are reduced with the decrease of SiC sizes. This is attributed to the fact that the negative effect of interfacial thermal resistance becomes... of the larger restriction in expansion through interfaces. 3) As a result of the negative effect of interfacial thermal resistance, the thermal conductivity of SiCp/Cu composites decreases......
ARTICLE J. Cent. South Univ. (2019) 26: 1435-1442 DOI: https://doi.org/10.1007/s11771-019-4099-2 Improving electrochemical properties of carbon paper as negative electrode for vanadium redox... properties of carbon paper as negative electrode for vanadium redox battery (VRB). The treated carbon paper exhibits enhanced electrochemical activity for V2+/V3+ redox reaction. The sample (CP-NH3) treated......
J. Cent. South Univ. Technol. (2008) 15: 198-203 DOI: 10.1007/s11771-008-0038-3 Simulation of thermal and sodium expansion stress in aluminum reduction cells LI Jie(李 劼), WU Yu-yun(伍玉云), LAI... block. Thermal stress field was calculated by the other slice model of the cell at the end of the heating-up. Then stresses[A1] coupling thermal and sodium expansion were considered after 30 d start......
:In order to prepare a hypereutectic Al-Si alloy with low coefficients of thermal expansion (CTE), Al-50was produced by powder metallurgy (P/M) and ingot metallurgy (I/M). P/M specimen was prepared... ceramics. 关键词:Al-Si alloy; coefficient of thermal expansion; sintering; casting; strontium addition; modification; [全文内容正在添加中] ......
Metastable phase of b-eucryptite and thermal expansion behavior of eucryptite particles reinforced aluminum matrix compositeWANG Li-dong1, CUI Ye1, YANG Cong-tao2, WANG Kang-peng1, FEI Wei-dong1, 3(1...; metastable phase, thermal expansion; residual stress......
matrix composites (Si3N4p/Al) present several advantages that are high specific strength, low thermal expansion coefficient, high thermal conductivity, high intensity and good dimensional stability... of large thermal mismatch stress generated by coefficient of thermal expansion (CTE) difference between the ceramic particles and matrix [9-10]. However, it is difficult to observe the dislocation......
alkali-metal oxides and the physical properties of the glasses such as thermal expansion coefficient, electric resistivity and dielectric loss were discussed. The results show that K2O has less effect on the thermal expansion coefficient than the same mass quantity of Na2O. The "mixed alkali effects" and "negative mixed alkali effects" appear when the glasses contain two or three kinds of alkali......
合材料的热膨胀系数,但前者起主导作用；金刚石和碳化硅在不同配比下的热膨胀系数随着复合材料中碳化硅含量的增加逐渐增大,Terner模型与Kerner模型的计算平均值能较好地预测实验结果. 关键词:复合材料；金刚石；碳化硅；热膨胀 中图分类号:TB333 文献标志码:A Thermal expansion behavior of diamond... composites were produced by gas pressure infiltration, and the morphology of the fracture surfaces, interface reactions and coefficients of thermal expansion of the composites were investigated. The results......
