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the thermodynamic properties of AgCuZnSn brazing alloys, brazing alloys of high Sn content were prepared using melting alloyed method based on BAg50CuZn substrate. The melting temperature of brazing alloys... of Sn content on phase transformation rate of AgCuZnSn brazing alloys and temperature 2.3 钎料钎焊性能的定量表征 以BAg50CuZn钎料为原料,熔炼合金化方法制备的AgCuZnSn钎料钎焊工艺性和接头力学性能的试验数据,如表2所列.钎焊接头抗拉强度不低于350 MPa,钎料润湿面积不小于330 mm2......
Effect of Lu2O3 on Charge/discharge Performances of Spherical Nickel Hydroxide at High Temperature Ren Junxia1,Li Yuzhan1,Yan Jie1,Wang Xiaojian1,Gao Xueping1 (1.Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, China) Abstract:Nickel-metal hydride (Ni/MH) batteries are one of promising batteries for electric vehicle applications, but at high temperature the charge......
J. Cent. South Univ. (2017) 24: 374-381 DOI: 10.1007/s11171-017-3439-y Unsteady temperature field of surrounding rock mass in high geothermal roadway during mechanical ventilation ZHANG Yuan(张源)1, 2... and Technology,Xuzhou 221116, China Central South University Press and Springer-Verlag Berlin Heidelberg 2017 Abstract: To explore the spatial-temporal evolution law of rock mass temperature in high geothermal......
J. Cent. South Univ. Technol. (2011) 18: 1278-1284 DOI: 10.1007/s11771-011-0833-0 Application of high temperature heat pipe in hypersonic vehicles thermal protection BAI Tong(白穜), ZHANG Hong(张红... further the application of high temperature heat pipe in hypersonic vehicles thermal protection, the principles and characteristics of high temperature heat pipe used in hypersonic vehicles thermal......
. However, the factors of high melting temperature, poor processability and low joint strength make the brazing alloys application difficulty, and commercial brazing filler metals are few. The addition... Ceramic Society, 2007, 27(2/3): 831-836. [17] HAYES F H, LONGBOTTOM R D, AHMAD E, CHEN G. On the Al-Si, Al-Ge, and Al-Ge-Si systems and their application to brazing in high power semiconductor devices[J......
Effect of Al content on high temperature erosion properties of arc-sprayed FeMnCrAl/Cr3C2 coatings LUO Lai-ma(罗来马)1, LIU Shao-guang(刘少光)2, YU Jia(俞 佳)1, LUO Juan(罗 娟)1, LI Jian(郦 剑)1 1... were analyzed by optical microscopy (OM) and X-ray diffractometry (XRD). High temperature erosion (HTE) tests were performed in an erosion tester at different impact angles. The surface morphologies......
NUMERICAL SIMULATION OF TEMPERATURE FIELD ON FLASH BUTT WELDING FOR HIGH MANGANESE STEELS B.D. Yu1,W.D. Song2,F.C. Zhang2 (1.China Railway Shanhaiguan Bridge Group Limited Company, Shanhaiguan... of high-manganese steel in FBW. Key words:flash butt welding (FBW); numerical simulation; high manganese steel; temperature field; [全文内容正在添加中] ......
Phase Constitution in Mixed Gd2O3 and B4C by Sintering at High Temperature Sun Shuchen1,HU Guangyong1,Xu Jingyu1,Bian Xue1,Wu Wenyuan1,Tu Ganfeng1 (1.School of Material and Metallurgy, Northeastern... with the prolonging time. Key words:high temperature sintering; phase constitution; gadolinium boride; boron carbide; gadolinium oxide; rare earths; [全文内容正在添加中] ......
that of 45CT, but the abrasive wear of the coating was obvious better than that of 45CT. 关键词:high hardness, wear resistance, high temperature oxidation resistance; coating; arc spray; [全文内容正在添加中] ...Preparation and Properties of High Hardness and Oxidation Resisting Coating Using Electric Arc Spray TANG Chun-tian1,LI Zhuo-xin1,WANG Jiang-Ping1,CUI Li1 (1.Beijing University of Technology......
