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that of the mother compound Gd2Fe17.Negative thermal expansion was found in Gd2Fe15.5Cr1.5 compound in a broad temperature range 294-572 K by X-ray dilatometry.The coefficient of the average thermal...Anomalous thermal expansion of Gd2Fe15.5Cr1.5 compound郝延明1,张雪敏1,梁飞飞1,王芳1,王博文21. College of Science,Tianjin University of Science & Technology2. School of Electrical Engineering and Information......
that of the mother compound Gd2Fe17.Negative thermal expansion was found in Gd2Fe15.5Cr1.5 compound in a broad temperature range 294-572 K by X-ray dilatometry.The coefficient of the average thermal...Anomalous thermal expansion of Gd2Fe15.5Cr1.5 compound郝延明1,张雪敏1,梁飞飞1,王芳1,王博文21. College of Science,Tianjin University of Science & Technology2. School of Electrical Engineering and Information......
, China摘 要:A copper matrix composite reinforced by β-LiAlSiO4 with negative thermal expansion coefficient was fabricated using vacuum hot-pressed sintering... in the matrix affects the thermal expansion properties. After heat treatment, the coefficient of thermal expansion (CTE) of the composite decreases greatly. The CTE of the composite after thermal......
casting, infiltration and spark plasma sintering were analyzed. Factors related to thermophysical properties, such us thermal conductivity and coefficient of thermal expansion were discussed. Finally, the relevant problems and development tendency were also addressed. Key words: electronic packaging; diamond/aluminum composites; thermal conductivity; thermal expansion coefficient 随着信息技术的飞速发展,电子元器件的集成度和发......
Effect of Carbon Nanotube Orientation on Mechanical Properties and Thermal Expansion Coefficient of Carbon Nanotube-Reinforced Aluminum Matrix CompositesZ.Y.Liu1,2,B.L.Xiao2,W.G.Wang3,Z.Y.Ma21..... As the off-axis angle increased, the tensile properties were reduced due to the weakening of the load transfer ability. Furthermore, aligned CNTs resulted in much lower coefficient of thermal expansion......
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the formation of Al4C3 fragility phase and the addition of magnesium to the aluminum alloy significantly improves the wetting property of SiC with aluminum. The thermal expansion coefficient of AlSiC composite... packaging materials. Key words: AlSiC; microstructure; phase; interface; thermal expansion coefficient 基金项目:国家安全重大基础研究项目；国家自然科学基金资助项目(51002052)；广东省战略新兴产业专项资金资助项目(2011A081301010) 收稿日期:2012-06-11；修订日期......
results showed that Dy2O3 and Al2O3 had a positive effect on the coefficient of thermal expansion of glass, whereas, SiO2 had a negative effect. The coefficient of thermal expansion of glass showed an apparent linear relation to the contents of these three raw materials, from which an estimation model was built, to calculate the coefficient of thermal expansion of sealing glass. Relative errors......
%,bending strength 1057.9 MPa,hardness 72.5 HRA,electronic resistivity 1.28×10-7Ω·m-1,thermal conductivity 139 W.m-1.K-1,and lower coefficient of thermal expansion 7.4×10-6K-1.Mo-Cu composites have...Mechanical properties and expansion coefficient of Mo-Cu composites with different Ni contentsGUO Shibo a,KANG Qiping a,CAI Chunbo a,and Qu Xuanhui b a College of Electromechanical Engineering,Hunan......
carbide aluminum-base composites; electronic packaging; semi-solid thixoforming; thermal conductivity; coefficient of thermal expansion... of SiC decreases gradually from the bottom to the walls. Accordingly, the thermal conductivities of bottom center and walls are 178 and 164 W·m-1·K-1, the coefficients of thermal expansion (CTE) are 8.2......
