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《Materials for Mechanical Engineering》 1992-05
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Studies on Liquid Hot-Pressing Sintering and Strengthening of Si-SiC Ceramics

Zhang Bingrong (Shandong Light Industry Institute, Jinan, China, 250100)Pan Minyuan (Shaanxi Institute of Mechanical Engineering, Xian, China, 710048)  
The liquid hot-pressing sintering behaviour of Si-SiC and Si-SiC-WC ceramics was studied. The results show that the increase of silicon (to 25 vol%) made ths sintering body densificated at a lower temperature; and by the occurrance of liquid silicon, the grain growth was restricted. Therefore, the strength of SiC article with 25 vol%Si was higher than that of with 5vol.% Si. The addition of some WC enhanced the densification and strengthened the Si-SiC ceramics.
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