Interfacial Shear Strength Measurements of SiC Fiber-Reinforced Titanium Composites

材料科学技术（英）, 2005, 21(5): 657-660.

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

1.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;Collage 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

基金项目: Hundred Talent Projectof CAS

Interfacial Shear Strength Measurements of SiC Fiber-Reinforced Titanium Composites

Keywords： Push-out test

A continuous loading push-out test technique was used to measure the interfacial shear strength of SiC fiber reinforced Ti matrix composites. The interracial shear strength of samples as-fabricated and after heat exposed at 700 and 800℃ for 50 h was successfully determined. It has been found that the interfacial shear strength of the specimen exposed at 700℃ was higher than that of as-prepared and exposed samples at 800℃. The shear strength of the as-prepared samples was about 112.45 MPa, and increased to about 153.77 MPa after heat-treating at 700℃ for 50 h, but decreased to 133.11 MPa after treating at 800℃ for 50 h. Scanning electron microscope (SEM) was used to investigate the interfacial morphology of the samples. The brittle phase was the main products of interface for samples exposed at 800℃, and the interface was easily peeled off.

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Interfacial Shear Strength Measurements of SiC Fiber-Reinforced Titanium Composites

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