Oxidation behaviors of C/SiC composites coated with SiC coatings containing borosilicate glass

CAO Su; LIU Yongsheng; ZUO Xinzhang; ZHANG Litong; CHENG Laifei

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Article Navigation > Acta Materiae Compositae Sinica > 2011 > 28(2): 142-148

CAO Su, LIU Yongsheng, ZUO Xinzhang, et al. Oxidation behaviors of C/SiC composites coated with SiC coatings containing borosilicate glass[J]. Acta Materiae Compositae Sinica, 2011, 28(2): 142-148.

Citation:

CAO Su, LIU Yongsheng, ZUO Xinzhang, et al. Oxidation behaviors of C/SiC composites coated with SiC coatings containing borosilicate glass[J]. Acta Materiae Compositae Sinica, 2011, 28(2): 142-148.

CAO Su, LIU Yongsheng, ZUO Xinzhang, et al. Oxidation behaviors of C/SiC composites coated with SiC coatings containing borosilicate glass[J]. Acta Materiae Compositae Sinica, 2011, 28(2): 142-148.

Citation:

CAO Su, LIU Yongsheng, ZUO Xinzhang, et al. Oxidation behaviors of C/SiC composites coated with SiC coatings containing borosilicate glass[J]. Acta Materiae Compositae Sinica, 2011, 28(2): 142-148.

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Oxidation behaviors of C/SiC composites coated with SiC coatings containing borosilicate glass

1.
National Key Laboratory of Thermostructrure Composites Materials, Northwest Polytechnical University, Xi’an 710072, China;
2.
School of Mechanics, Civil Engineering and Architecture, Northwest Polytechnical University, Xi’an 710129, China

Received Date: 2010-03-04
Rev Recd Date: 2010-05-04
Publish Date: 2011-04-15

Abstract

Abstract

SiC self-healing coatings containing borosilicate glass were prepared by polymer plyen on the 2D C/SiC composites. The microstructure morphologies of the 2D C/SiC composites with SiC coating containing borosilicate glass before and after oxidation were analyzed by SEM. The oxidation behaviors of the C/SiC composites with SiC coating containing borosilicate glass were studied at 700℃, 1000℃ and 1200℃ in static air and the oxidation behaviors resulted by different layers were analyzed. The results show that the glass phase produced by the SiC coating containing borosilicate glass can seal the defections (cracks and pores) existed in the coating, and with increasing the temperature and number of the coating layers, the C/SiC composites have lower mass loss during the oxidation and higher strength retention after oxidized.
- 2D C/SiC composites,
- borosilicate glass,
- self-healing coating,
- oxidation,
- morphology,
- mass change,
- residual strength
Long Abstrsct
Innovation Points