期刊
JOURNAL OF COMPOSITE MATERIALS
卷 45, 期 13, 页码 1363-1380出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0021998310381536
关键词
silicone polymer matrix composites; phenolic polymer matrix composites; thermal protection materials; ablatives; thermal protection systems
资金
- The Office of Naval Research (ONR) under NSWC [N60921-92-C-A243]
A new class of silicone polymer matrix composites was evaluated using a simulated solid rocket motor test apparatus. Conversion of this organic silicone polymer to a ceramic (i.e. silica) structure on exposure to flame impingement or high temperature, accounts for its outstanding thermal stability. A research program was aimed to develop and evaluate this new class of thermal protection materials for military applications. This article presents the effects of the type and form of reinforcements on the thermal performance of a novel class of silicone polymer matrix composites. Reinforcement types such as glass, silica, quartz, Nextel(TM), and Nicalon(TM) were used. Reinforcement forms such as random continuous-fiber mat, chopped-fiber mat, 2-D fabric, 3-D fabric, chopped roving, and broadgood tapes with different ply angles were tested. Detailed microstructural, mass loss, and peak erosion analyses were conducted on the phenolic-based matrix composite (control) and silicone-based matrix composites to understand their protective mechanisms.
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