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Indexed by:会议论文

Date of Publication:2010-01-01

Included Journals:EI、CPCI-S

Volume:220

Page Number:189-196

Key Words:boron carbide; composites; mechanical properties

Abstract: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.