Influence of Fe/Ni/Al Additive on the Sintering Behaviors of TiB_2 Cermets

武汉理工大学学报-材料科学版(英文版), 2009, 24(6): 879-882. doi: 10.1007/s11595-009-6879-2

^1, , ^2, , ^3,

1.State Key Laboratory of Advanced Technology for Materials Synthesis and processing,Wuhan university of Technology,Wuhan 430070,China

2.State Key Laboratory of Advanced Technology for Materials Synthesis and processing,Wuhan university of Technology,Wuhan 430070,China

3.State Key Laboratory of Advanced Technology for Materials Synthesis and processing,Wuhan university of Technology,Wuhan 430070,China

基金项目: the National Natural Science Foundation of China(50772081 and 50821140308) Foundation of ministry of Education of China(PCSIR70644)

Influence of Fe/Ni/Al Additive on the Sintering Behaviors of TiB_2 Cermets

CHEN Hua ^1, , ZHANG Jinyong ^2, , FU Zhengyi ^3,

1.State Key Laboratory of Advanced Technology for Materials Synthesis and processing,Wuhan university of Technology,Wuhan 430070,China

2.State Key Laboratory of Advanced Technology for Materials Synthesis and processing,Wuhan university of Technology,Wuhan 430070,China

3.State Key Laboratory of Advanced Technology for Materials Synthesis and processing,Wuhan university of Technology,Wuhan 430070,China

Keywords： hot-pressing

Fe-Ni-Al mixtures as hot-pressing sintering additive to Titanium diboride(TiB_2) were studied.It is found that liquid alloy formed under high temperature hardly has effects on the densification behaviors of TiB_2-independent.Fe-Ni-Al additive just works as filler between TiB_2 par-ticles and does not change the TiB_2-independent sintering behaviors.Pressing mode has a great effect on the liquid flowing between TiB_2 particles.Multiple-steps pressing mode will give more time and space for the liquid flowing and improve the relative density of TiB_2-Fe-Ni-Al cermet.

参考文献

[1]	Mari-Ann Einarsrud;Eirik hagen;Gunnar Pettersen .Pressureless sintering of titanium diboride with nickel, nickel boride, and Iron additives[J].Journal of the American Ceramic Society,1997(12):3013-3020.

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