Microstructure and mechanical properties of B4C matrix composites sintered with (TiB2+Al)

Qi Song, Zhao Hui Zhang*, Shi Pan Yin, Zheng Yang Hu, Hao Wang

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

The B4C matrix composites were obtained with the addition of (24.5 % TiB2+2 % Al) using spark plasma sintering method at 1600 C with the pressure of 80 MPa for 5 min. Compared with the monolithic B4C ceramics, due to the (24.5 % TiB2+2 % Al) additive in B4C matrix composite, the densification temperature of B4C matrix composite was obviously decreased and the flexural strength was significantly improved. The B4C matrix composites exhibited the high flexural strength of 528 MPa, and a moderate Vickers hardness of 24.2 Gpa. The excellent flexural strength attributed to the second phases in the composites can prevent the cracks from extending and the energy disspation effect resulted from the intergranular fracture.

Original languageEnglish
Article number012046
JournalJournal of Physics: Conference Series
Volume1676
Issue number1
DOIs
Publication statusPublished - 18 Nov 2020
Event2020 6th International Conference on Materials, Mechanical Engineering and Automation Technology, MMEAT 2020 - Zhuhai, Virtual, China
Duration: 1 May 20203 May 2020

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