Release Time:2019-03-11  Hits:

Indexed by: Conference Paper

Date of Publication: 2010-01-01

Included Journals: CPCI-S、EI

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.