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Preparation and mechanical properties of O'-Sialon -ZrO2 -SiC(nm) composite
Author(s): 
Pages: 262-265
Year: Issue:  5
Journal: REFRACTORIES

Keyword:  O'-Sialon-ZrO2-SiC复相材料热压烧结力学性能显微结构;
Abstract: 采用热压烧结工艺合成了O'-SialonZrO2-SiC(nm)复合材料,研究了该复合材料的力学性能及显微结构.结果表明,材料抗折强度随温度的变化属Ⅰ类曲线变化规律,Sialon、SiC多晶以及晶粒粗大、层状结构SiC的存在可能是导致材料强度不高的主要原因.断口的显微结构研究表明,复合材料在室温时的断裂以穿晶断裂为主,中、高温时则为沿晶断裂.
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