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, the powder conductivity was increased from 90.55 to 120.56 ms/cm by the introduction of the mineralizer solutions(KOH+K2CO3) during the microwave-hydrothermal processing.关键词:...Preparation of scandia stabilized zirconia powder using microwave-hydrothermal method敖红敏,刘向生,张赫,周静,黄小卫,冯宗玉,徐宏Grirem Advanced Materials Co., Ltd., National Engineering Research Center for Rare Earth......
, the powder conductivity was increased from 90.55 to 120.56 ms/cm by the introduction of the mineralizer solutions(KOH+K2CO3) during the microwave-hydrothermal processing.关键词:...Preparation of scandia stabilized zirconia powder using microwave-hydrothermal method敖红敏,刘向生,张赫,周静,黄小卫,冯宗玉,徐宏Grirem Advanced Materials Co., Ltd., National Engineering Research Center for Rare Earth......
out and the related mechanism was discussed. The results show that the processing effect is best when the rotational speed is set at 4,000 r·min-1 for 15 min: the powder particles become nearly...Spherical modification of tungsten oxide powder and its mechanism analysisCong-Cong Wang1,Cheng-Chang Jia1,Peng Gao1,Guo-Cheng Gai2,Yu-Fen Yang21. School of Materials Science and Engineering......
equation; hot processing map; dynamic recrystallization 1 Introduction Powder metallurgy (PM) nickel-based superalloy has become an irreplaceable key material for advanced aero-engine structural... QIAO3, Zheng-qin HUANG3, Min-xue LIU4 1. School of Materials Science and Engineering, Central South University, Changsha 410083, China; 2. National Key Laboratory for Precision Hot Processing......
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THE MECHANISM FOR NANOMETER-SIZED TiC SYNTHESIZING BY MECHANICAL & THERMAL ACTIVATION PROCESSING T.Sun1,L.S. Cui2,X.L. Cui1,M.Zhu1 (1.College of Mechanical Engineering, South China University..., named mechanical & thermal activation processing, is discussed in the present paper. It is a processing based on thermal activation in liquid phase (molten salt) after mechanical activation......
Carbide Coating Preparation of Hot Forging Die by Plasma Processing杜文华School of Mechanical Engineering and Automation, North University of China摘 要:To meet..., 10%Cr3C2, 30%WC powder by means of plasma spraying and plasma spray re-melting and plasma spray welding, respectively. Microstructure of each carbide coating was analyzed, micro-hardness was tested......
by chemical processing[J]. Materials Letters, 2004, 58: 1419-1423. [6] DAI Xue-gang, ZHEN Guo-liang, RONG Jing-long, et al. Preparation of SiC ultrafine powder by plasma technique[J].Engineering... Synthesis and microwave dielectric properties of Si/C/B powder LI Zhi-min(李智敏), DU Hong-liang(杜红亮), LIU Xiao-kui(刘晓魁), LUO Fa(罗 发), ZHOU Wan-cheng(周万城) State Key Laboratory......
Preparation of ZrO2 spherical nanometer powders by emulsion processing route CHANG Ying(常 鹰), LI Xi-bin(李溪滨) State Key Laboratory of Powder Metallurgy, Central South University, Changsha... fracture toughness, and relatively high thermal expansion coefficient. The effects of powder characteristics on the processing and the properties of the final ceramic products have been well known......
的显微硬度,其结果与试验值相吻合. 关键词:镁合金;复合材料;搅拌摩擦加工;Ti颗粒 中图分类号:TB 331 文献标识码:A Preparation of Mg-AZ31 based composites with Ti particles by friction stir processing WANG Kai-dong1... fabricated by friction stir processing (FSP). The results show that after four FSP passes the matrix structure of composite layers can be significantly refined within 3?5 μm obviously, and the fragments......