Paper Title:
Ablation Performance and Surface Texture of the Nitride Composites Reinforced by the Braided Silica Fibers
  Abstract

Braided silica fibers reinforced nitride composite (SFRN), which was prepared by the polymeric precursor infiltration and pyrolysis (PIP) process with the precursor polyborosilazane (PSBZ), was a new typed microwave transparent material with high mechanical and ablation resistance performance for high-temperature application. The thermal ablation performance of the SFRN was evaluated by the ablation equipment with the kerosene and liquid oxygen as the heating source. The ablation surface texture of the SFRN including macrostructure and roughness were measured by Three-dimensional Macrostructure and Contour Scale System (TMCSS). Results showed that there are no concurrent observation of thermal delaminations or cracks and the specimen remains intact. The SFRN has an excellent thermal shock resistance and good ablation resistance with the linear recession rate of 0.038mm/s. The ablation surface texture of the SFRN can be well illuminated by the TMCSS. And the ablation performance will be improved by enhancing material density and homogeneous intertextures.

  Info
Periodical
Key Engineering Materials (Volumes 368-372)
Edited by
Wei Pan and Jianghong Gong
Pages
980-982
DOI
10.4028/www.scientific.net/KEM.368-372.980
Citation
Y. G. Jiang, C. R. Zhang, F. Cao, S. Q. Wang, B. Li, "Ablation Performance and Surface Texture of the Nitride Composites Reinforced by the Braided Silica Fibers", Key Engineering Materials, Vols. 368-372, pp. 980-982, 2008
Online since
February 2008
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