Fabrication of (MoSi2-SiC)/TiAl Functionally Gradient Materials by Gas-Pressure Combustion Sintering Process
Fabrication of (MoSi2-SiC)/TiAl Functionally Gradient Materials by Gas-Pressure Combustion Sintering Process
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DOI：
10.2497/jjspm.37.937
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发表时间：
1990-09
期刊：
影响因子：
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通讯作者：
Y. Matsuzaki;J. Fujioka;Shun-ichi Minakata;Y. Miyamoto
中科院分区：
文献类型：
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作者：
Y. Matsuzaki;J. Fujioka;Shun-ichi Minakata;Y. Miyamoto
本文介绍了一种利用燃烧合成（SHS）和热等静压相结合的气体加压燃烧烧结法制备梯度功能材料（FGM）的工艺。由于MoSi_2-SiC复合材料具有良好的抗氧化性、高温强度和TiAl的比强度，我们制备了（MOSi_2-SiC）/TiAl功能梯度材料，并将其应用于高超声速飞行器的机体和发动机。我们澄清了FGN的化学成分的分布对制造过程中产生的残余应力有很大的影响，并研究了成分分布参数的边界条件，以降低断裂强度以下的临界残余应力。
This paper describes a process for the fabrication of Functionally Gradient Materials(FGM) by the Gas-pressure Combustion Sintering which is a combined process using combustion synthesis(SHS) and the hot isostatic press. We fabricated the (MOSi2-SiC) /TiAl FGM, for the purpose of applying then to airframes and engines of hypersonic vehicles because of the good oxidation resistance, the high temperature strength of the MoSi2-SiC composite and the excellent specific strength of TiAl. We clarified that the distribution of the chemical composition of FGN has a great influence on the residual stress which is generated during the process of fabrication and examined a boundary condition of the compositional distribution parameter to reduce the critical residual stress below the fracture strength.