Preparation and Interfacial Stability of SiCf/Ti-6Al-4V Composites Fabricated Using Powder Coated Fiber Method

材料科学技术（英）, 2005, 21(6): 903-908.

^1, , ^2, , ^3, , ^4,

1.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;College of Environment and Chemical Engineering, Dalian University, Dalian 116622, China

2.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

3.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

4.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

Preparation and Interfacial Stability of SiCf/Ti-6Al-4V Composites Fabricated Using Powder Coated Fiber Method

Keywords： Powder coated fiber

SiCf/Ti-6Al-4V composites were fabricated by the powder-coated fiber method. The precursor fiber was prepared under the optimized parameter, and the composites were made using the vacuum hot pressure method. The influence of heat exposure time on products of the interfacial reaction was investigated using scanning electron microscope(SEM) and analytical transmission electron microscope (TEM) with energy dispersive spectrometer (EDS). The main products are TiC and Ti5Si3 after vacuum exposing the samples at 700℃ for50 h. The growth dynamics of interfacial reaction products was analyzed quantitatively, which fitted the parabola rule. The activity energy of the reaction was 252 Kj·mol-1.

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Preparation and Interfacial Stability of SiCf/Ti-6Al-4V Composites Fabricated Using Powder Coated Fiber Method

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