Ablation mechanism of C/C–ZrB2–ZrC–SiC composite fabricated by polymer infiltration and pyrolysis with preform of Cf/ZrB2. (September 2015)

• Record Type: Journal Article
• Authors: Huang, Dong; Zhang, Mingyu; Huang, Qizhong; Wang, Liping; Xue, Liang; Tang, Xian; He, Kejian
• Is Part Of: Corrosion science. Volume 98(2015)
• Page Start: 551
• Page End: 559
• Publication Date: 2015-09
• Subjects: A. Ceramic matrix composites -- B. SEM -- C. High temperature corrosion; Corrosion and anti-corrosives -- Periodicals; 620.11223
• DOI: 10.1016/j.corsci.2015.05.064
• Languages: English
• ISSNs: 0010-938X

Abstract

Highlights: The novel C/C–ZrB2 –ZrC–SiC composites were fabricated. A Cf /ZrB2 preform was fabricated by spraying powder during needle-punched process. A ceramic coating was formed around the carbon fibres in the composites. The matrix-modified composites showed a good ablation resistance. Abstract: C/C–ZrB2 –ZrC–SiC composites were fabricated by polymer infiltration and pyrolysis (PIP) with a preform of Cf /ZrB2 . The ZrB2 powders were sprayed onto fabric layer by layer before the fabric is needled. After introduction of resin carbon and ZrC–SiC into the preform, a ceramic coating on the matrix and fibres was formed in the composites. The plasma ablation test indicates that the composites possess a good ablation resistance after ablation for 180 s and 240 s. The SiO2 –ZrO2 barrier layer, high temperature Zr–Si–O glass layer and heat dissipation all contribute to the good ablation resistance of the composites.