Interfacial microstructure evolution and mechanical properties of B4C-based composite joints bonded with Ti foil
作者： HX Li , ZH Zhong , AK Yang , ZQ Wang , Q Wen
DOI: 10.1016/J.CERAMINT.2018.07.003
关键词:
摘要: Abstract The interfacial microstructure and mechanical properties of B4C-SiC-TiB2 composite joints diffusion bonded with Ti foil interlayer were investigated. in the temperature range 800–1200 °C 50 MPa by spark plasma sintering. results revealed that robust joint could be successfully obtained due to interface reaction. B4C reacted form nanocrystalline TiB2 TiC at 800–1000 °C. Both reactions between SiC not observed during joining. A full ceramic consisted micron- submicron-sized TiC, accompanied formation micro-crack, was achieved for 1200 °C. Joint strength evaluated maximum shear (145 ± 14.1 MPa) 900 °C. Vickers hardness increased increasing joining temperature.
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