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Liquid phase separation of Cu-Cr alloys during rapid cooling SUN Zhan-bo(孙占波), WANG You-hong(王宥宏), GUO Juan(郭 娟) School of Science, Xi’an Jiaotong University, Xi’an 710049, China Received 10... were analyzed by scanning electron microscopy and transmission electron microscopy. The results reveal that a representative liquid phase separation microstructures are observed in Cu75Cr25 ribbons......
: cemented carbide; rare earth; surface segregation; directional migration; liquid phase sintering ... migration of cerium atom from the inner of cemented carbide to the sinter skin should take place at the stage of liquid phase sintering and the directional migration of cerium atom should be along the fast......
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MANUFACTURING OF ALUMINUM/FLY ASH COMPOSITE WITH LIQUID REACTIVE SINTERING TECHNOLOGY G.Xie1,D.J.Wang1,X.F.Zhang1 (1.The Faculty of Material and Metallurgical Engineering, Kunming University of Science and Technology,Kunming 650093, China) Abstract:The Al/fly ash composites are fabricated by liquid reactive sintering P/M process withfly ash particles as intensifying phases. The reactivity......
is presented in the sintered Si3N4 ceramics, a typical feature that shows the dissolution of α-Si3N4 in the liquid phase and phase transformation from α-Si3N4 to β-Si3N4. Figure 6 Dependence of sintering... of α-Si3N4 particles under liquid surface tension and applied pressure is the dominating mechanism for densification. On the contrary, the complete dissolution of α-Si3N4 in the liquid phase is enabled......
the densification of materials. On the other hand, due to components of low fusing point (such as Sn) in the matrix, some liquid phase will appear at higher temperature, which can fill some pores and then strengthen... Effects of sintering pressure and temperature on microstructure and tribological characteristic of Cu-based aircraft brake material XIONG Xiang(熊 翔), SHENG Hong-chao(盛洪超), CHEN Jie(陈 洁......
and bonding phase but also on the bonding degree between them. The infiltration behavior of sintering liquid on nuclei ores influences the bonding degree, which ultimately determines the sinter...Infiltration behavior of sintering liquid on nuclei ores during low-titanium ore sintering processDong-hui Liu,Jian-liang Zhang,Xun Xue,Guang-wei Wang,Ke-jiang Li,Zheng-jian LiuSchool of Metallurgy......
Carburized Effect on Gradient Cemented Carbide of TiC/TaC Prepared by Liquid Phase Sintering邵延君,LI Xing,WANG Jianqing,WANG JunyuanSchool of Mechanical and Power Engineering,North University of China摘 要:The carburized graded cemented carbide with the addition of some(Ti,Ta) C was analyzed in detail.The micro-structure and element distribution were......
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application in cemented carbide production and mechanisms of local liquid phase sintering during the microwave preparation were reviewed. The application potentials of microwave sintering for the preparation of cemented carbide were put forward. Key words: cemented carbide; microwave sintering; sintering mechanism; local liquid phase 作为新型的烧结技术,微波加热具有加热速度快,整体加热,选择性加热以及非热效应等传统热传导加热方式所不具备的特点[1-2].早在1999年......
