Comparison on Microstructure and Infrared Emissivity Properties of 3D Needled Composites | Zendy

Wang Fuyuan | Zendy; Cheng Laifei | Zendy; Fan Xiaomeng | Zendy; Yin Xiaowei | Zendy; Zhang Litong | Zendy

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Comparison on Microstructure and Infrared Emissivity Properties of 3D Needled Composites

Author(s) -

Wang Fuyuan,

Cheng Laifei,

Fan Xiaomeng,

Yin Xiaowei,

Zhang Litong

Publication year - 2014

Publication title -

international journal of applied ceramic technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.4

H-Index - 57

eISSN - 1744-7402

pISSN - 1546-542X

DOI - 10.1111/ijac.12284

Subject(s) - emissivity , materials science , infrared , microstructure , composite material , low emissivity , optics , layer (electronics) , physics

Three‐dimensional (3D) needled composites, C/C, C/C‐SiC, and C/SiC, were prepared and their infrared emissivity properties in 1000–1600°C were investigated. Results showed that the infrared emissivity of all composites increased almost linearly with temperatures. In comparison with C/C, C/C‐SiC composites reduced by 10% in the total emissivity. Twenty‐two vol% SiC in C/C‐SiC composites caused a low zone in 10–14 μm, corresponding to the theoretical emissivity of SiC. For C/SiC composites prepared by CVI , 68 vol% SiC caused a “V” shape in the spectral emissivity. The high SiC content also endued the high infrared emissivity properties for C/SiC composites.

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