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论文类型： 会议论文

发表时间： 2010-01-01

收录刊物： EI、CPCI-S

卷号： 220

页面范围： 189-196

关键字： boron carbide; composites; mechanical properties

摘要： Monolithic B(4)C and B(4)C-SiC ceramic composites were prepared by hot-pressing technology. The microstructure and mechanical properties of sintered samples were studied. The results showed that the samples reached full density under the sintering condition of 2000 degrees C and 30MPa. For monolithic B(4)C, the highest hardness of 36.7Gpa, and fracture toughness of 7.11MPa m(1/2) were obtained. In B(4)C -10%SiC composite, the highest flexural strength of nearly 700MPa was measured. The influence mechanism of SiC addition on the mechanical properties of composites was discussed.