共搜索到19609条信息,每页显示10条信息,共1961页。用时:0小时0分0秒421毫秒
, the densifications of the TiB2p/Cu composites are higher than 98.2%. The mean linear coefficients of thermal expansion at 20-100 ℃ for TiB2p/Cu composites range from 8.3×10-6 to 10.8×10-6/K and decrease... composites range from 167.3 to 215.4 W/(m?K), decreasing with increasing volume fraction TiB2. Key words: TiB2p/Cu composites; densification; coefficient of thermal expansion; thermal conductivity  ......
......
, positive thermal expansion from -150℃ to room temperature (RT) and above 490℃, and the negative thermal expansion in the temperature range of RT-490℃. A big jump of thermal expansion coefficient...Novel thermal expansion of lead titanateXING Xianran, DENG Jinxia, CHEN Jun and LIU GuirongDepartment of Physical Chemistry, University of Science & Technology Beijing, Beijing 100083, China摘 要......
. The variation of the lattice parameter of MIT crystals with temperature was determined and the thermal expansion coefficient was deduced to be 6.18×10-6 K-1. The results of the thermal expansion... coefficient and thermal conductivity of MIT as a function of temperature is essential to evaluate the thermophysical properties under temperature gradients. So far, no details concerning the thermal expansion......
Numerical simulation on thermal expansion coefficient of 3D braided C/C compositesChun-Xia Hu1,He-Jun Li1,Shou-Yang Zhang1,Yong-Shan Song21. State Key Laboratory of Solidification Processing, Carbon...">To effectively get the thermal expansion coefficient(CTE) of three-dimensional(3D) braided C/C composites and study the variations, a VC?? program with graphical user interfaces was obtained, based......
of(ZrMg)6+ (ion radius 7.2 ×10-11 m) for Y3+ (ion radius 9×10-11 m), the crystal water are reduced obviously. The linear thermal expansion coefficient is improved with increasing the content of(ZrMg)6...Negative Thermal Expansion of (ZrMg)xY2-2xMo3O12 Ceramics with Low Hygroscopicity王献立1,FU Linjie1,XU Kun1,YANG Peng1,LU Xiansheng2,LIANG Erjun21. Physics Experiment Center, Zhengzhou University......
features of LSS alloy are beneficial to the higher thermal conductivity and lower thermal expansion coefficient at room temperature. The fine Si particle in SD alloy is advantageous to improving the mechanical properties. The increasing rates of thermal expansion coefficient with temperature are influenced by the distribution of the Si particles, where a lower rate is obtained in SD alloy......
coefficients of the composites decreased as the amount of ZrW2O8 increased,in agreement with the rule of the mixture.The coefficient of thermal expansion of the 4J36/40 vol.%ZrW2O8 composite in 25-100...Synthesis and thermal expansion of 4J36/ZrW2O8 compositesWANG Xin,ZHANG Jianfu,ZHANG Yanghuan,ZHANG Jinglin,LU Fengshuang,and WANG Xinlin Department of Functional Material Research,Central Iron......
Crystal structure and negative thermal expansion properties of solid solution Er2W3-xMoxO12 PENG Jie(彭 杰)1, 2, LIU Xin-zhi(刘新智)3, GUO Fu-li(郭富丽)4, HAN Song-bai(韩松柏)3, LIU Yun-tao(刘蕴韬)3... method. Their crystal structures and negative thermal expansion properties were studied by high temperature X-ray powder diffraction and the Rietveld method. All samples with rare earth tungstates......
......