首页|Microstructures and Mechanical Properties of B_4C-TiB_2 Composite Prepared by Hot Pressure Sintering
Microstructures and Mechanical Properties of B_4C-TiB_2 Composite Prepared by Hot Pressure Sintering
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NETL
NSTL
Trans Tech Publications Ltd
B_4C-TiB_2 composite was prepared using hot pressure sintering. The microstructures and mechanical properties of the B_4C-TiB_2 composite were investigated. The B_4C-TiB_2 composite with 43 mass % TiB_2 showed the optimized properties. The relative density, hardness, flexural strength and fracture toughness of that were 98.2 %, 25.9 GPa, 458 MPa and 8.7 MPa·m~(1/2), respectively. A number of toughening mechanisms, including fine grain, crack deflection and grain pull-out, were observed during microstructural analysis of the composite. The fracture mode of the B_4C-TiB_2 composite was greatly affected by the existence of the second phase of TiB_2.
hot pressingmechanical properties
XinYan Yue、ShuMao Zhao、Liang Yu、HongQiang Ru
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Key laboratory for anisotropy and texture of materials (MOE), school of materials and metallurgy, Northeastern University, Shenyang 110004, China
NETL
NSTL
Trans Tech Publications Ltd
