共搜索到11365条信息,每页显示10条信息,共1137页。用时:0小时0分0秒390毫秒
Microstructural evolution of NiFe2O4-10NiO powder prepared by high temperature solid state reaction ZHANG Lei(张 雷), ZHOU Ke-chao(周科朝), LI Zhi-you(李志友), YANG Wen-jie(杨文杰) State Key Laboratory... was prepared by high temperature solid state reaction. The microstructural evolution from the raw materials NiO and Fe2O3 to the NiFe2O4-10NiO powder was studied by SEM. The results show that the domain......
有一定的影响.当上述工艺参数达到最佳值时成功拉深出极限拉深比(LDR)为2.41的工件. 关键词:AZ31B镁合金;固体颗粒介质成形;差温;拉深性能 中图分类号:TG146.2 文献标志码:A Solid granular medium drawing process parameters... of Vehicles and Energy, Yanshan University, Qinhuangdao 066004, China) Abstract: The non-isothermal drawing of the magnesium alloy sheet in solid granular medium forming (SGMF) technology was put......
......
......
a numerical method to study the frictional mechanisms in a line contact mixed lubrication, and the friction behaviors influenced by the boundary film, the hydrodynamic lubricant film and the solid-to-solid... J. Cent. South Univ. (2021) 28: 1570-1583 DOI: https://doi.org/10.1007/s11771-021-4716-8 Predictions of friction and flash temperature in marine gears based on a 3D line contact mixed lubrication......
......
......
J. Cent. South Univ. (2012) 19: 855-862 DOI: 10.1007/s11771-012-1083-5 Microstructures and thermal properties of municipal solid waste incineration fly ash LIU Yuan-yuan(刘元元)1, WANG Jia-jia(王佳... and microstructures of municipal solid waste incineration (MSWI) fly ash were studied by measuring the chemical element composition, specific surface area, pore sizes, functional groups, TEM image......
Structure and Electrical Conductivity of Compositely Doped Oxide Solid Electrolyte La0.8Sr0.2Ga0.8Mg0.12Co0.08O2.8 Ma Xu1,Li Jianping2,Bao Juncheng1,Wang Zhiqi1,Zhao Jie1,Sun Jiashu1 (1.School..., China) Abstract:(La, Sr) (Ga, Mg) O3-δ, (LSGM) perovskite compositions doped with transition metal Co on the B-site were prepared by solid state reaction. The effect of partial substitution of Ga......
Conception of tooling adapted to thixoforging of high solid fraction hot-crack-sensitive aluminium alloys G. VANEETVELD1, A. RASSILI1, J. C. PIERRET1, J. LECOMTE-BECKERS2 1. Thixo Unit, B56... Received 13 May 2010; accepted 25 June 2010 Abstract: Thixoforging is a type of semi-solid metal processing at high solid fraction (0.7<φs<1), which involves the processing of alloys in the semi......