Properties of B₄C-Based Composite with Layered Structure

Abstract:

A three-layer material based on B₄C/Al, B₄C/TiB₂ and B₄C composites had been successfully prepared. The microstructures and properties of B₄C/Al-B₄C/TiB₂-B₄C composite were investigated in detail. The three-layer porous preform was first prepared by hot pressing. Then the three-layer composite was fabricated by infiltrating aluminum into the porous preform in vacuum. The three-layer B₄C/Al-B₄C/TiB₂-B₄C composite showed good interfacial bonding. When using the B₄C ceramics layer as the load-bearing surface, the flexural strength, fracture toughness and Vickers hardness of the composite were 230 MPa, 3.4 MPa·m^1/2 and 38 GPa, respectively.

• Periodical: Key Engineering Materials (Volumes 602-603)
• Pages: 532-535
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.602-603.532
• Online since: March 2014
• Authors: Zhen Nan Li, Si Yang Fan, Xin Yan Yue*, Zhao Bin Sun, Jian Jun Wang, Hong Qiang Ru
• Keywords: B₄C, Layered Material, Microstructure

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