In situ synthesis of NiAl–NbB2 composite powder through combustion synthesis

作者: Naser Sabzianpour , Mohammad Shokati , Ali Hemmati , Ali Akbar Shokati , Nader Parvin

DOI: 10.1016/J.JALLCOM.2012.08.024

关键词:

摘要: Abstract Synthesis of a novel NiAl matrix composite powder reinforced with 0–40 wt.% NbB 2 by combustion synthesis in thermal explosion mode was investigated. The elemental powders Ni, Al, Nb, and amorphous boron were used as starting material. For all compositions final products consisted only the phases. Coarser relatively uniform distribution formed rising content. Microhardness considerably increased from 377 ± 13 HV 0.05 to 866 ± 81 for 40 wt.% . High microhardness, proper size make it good candidate precursor spray application.

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