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Diffusion Coefficient of Lanthanum in Al-Cu Alloy常开国,赵敏寿摘 要:<正> In molten salt media,the rate of mass transfer process is slower than... is the rate determining step in anelectrochemical reaction.The diffusion coefficient of lanthanum in Al-Cu alloy is determined byelectrochemical method,which will provide very important data for the study......
Coefficient of thermal expansion of stressed thin films WANG Zheng-dao(王正道), JIANG Shao-qing(蒋少卿) Institute of Mechanics, School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China Received 10 April 2006; accepted 25 April 2006 Abstract: A new technique was proposed to determine the coefficient of thermal expansion (CTE) of thin films at low temperature......
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J. Cent. South Univ. Technol. (2008) 15(s1): 210-214 DOI: 10.1007/s11771-008-348-5 Adhesion coefficient of automobile tire and road surface LIU Chang-sheng(刘长生) (School of Traffic and Tansportation Engineering, Central South University of Forestry and Technology, Changsha 410004, China) Abstract: The adhesion coefficient of automobile tire and road surface was analyzed and the formula......
J. Cent. South Univ. (2021) 28: 1316-1323 DOI: https://doi.org/10.1007/s11771-021-4699-5 Microstructure and anisotropy of mechanical properties in ring rolled AZ80-Ag alloy ZHANG Dong-dong(张冬冬)1...: The microstructure, anisotropy in tensile strength and tensile creep resistance of the ring rolled AZ80-Ag alloy were studied. The ring exhibited higher strength along rolling direction (RD) than......
PREPARATION OF HIGH THERMAL EXPANSION COEFFICIENT PORCELAINS FUSED TO METALS J.P.Yang1,J.Q.Wu1 (1.Dept. of Inorganic Materials, South China University of Technology, Guangzhou 510640, China... and 50%o of low fused temperature frit has an average TEC of 19.2× 10-6/° C from room temperature to 450°C, which is much higher than the common porcelains. Key words:thermal expansion coefficient......
Equivalent Activity Coefficient Phenomenon of Cerium Reacting with Lead or Bismuth in Ag, Cu and Zn Alloy 钱乙余1,薛松柏1,董健2 (1.National Key Laboratory of Advanced Welding Production Technology, Harbin... coefficient in Ag, Cu and Zn-base alloy was calculated and analyzed by using the ternary system Chou model. The thermodynamic calculation results show that the "equivalent activity coefficient phenomenon......
Influence of Zirconium Addition on Magnetic Properties and Temperature Coefficient for Nanocomposite Nd10Fe78.5-xCo5ZrxB6.5 Magnets Ni Jiansen1,Tan Xiaohua1,Dong Yuanda1,Zhang Shiyan1,Xu Hui1 (1.Institute of Material Science, Shanghai University, Shanghai 200072, China) Abstract:The influence of Zr addition on magnetic properties and temperature coefficient for nanocomposite......
Preparation and Properties of SmTbCo Thin Films with Perpendicular Anisotropy黄致新,罗永松,刘敏,王辉,吴斌,章平,张玉龙摘 要:Amorphous (Sm)TbCo/Cr films with perpendicular anisotropy were prepared by r.f magnetron sputtering. The magnetic properties and the effects of Tb substituted with Sm on the magnetic properties of TbCo/Cr films were investigated. After part Tb......