CONSOLIDATION OF UNIDIRECTIONAL CF/PEEK COMPOSITES FROM COMMINGLED YARN PREPREG

被引：106

作者：

YE, L ^{[1
]}

FRIEDRICH, K ^{[1
]}

KASTEL, J ^{[1
]}

MAI, YW ^{[1
]}

机构：

[1] UNIV KAISERSLAUTERN,INST COMPOSITE MAT LTD,D-67663 KAISERSLAUTERN,GERMANY

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 1995年 / 54卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

MANUFACTURING; IMPREGNATION; CONSOLIDATION; COMMINGLED YAM; CF/PEEK COMPOSITE MATERIALS; PROCESSING VARIABLES;

D O I：

10.1016/0266-3538(95)00061-5

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Relationships between impregnation mechanisms, consolidation quality and resulting mechanical properties of CF/PEEK thermoplastic composites manufactured from a commingled yam system have been investigated. A small compression mould was used to apply the different processing conditions (i.e. pressure, holding time and processing temperature). The consolidation quality of finished samples was characterized mainly through microscopic studies of the microstructure of the material associated with density measurements and evaluations of mechanical properties using a small transverse flexure testing facility. A model for qualitatively describing the impregnation and consolidation processes in commingled-yarn-based thermoplastic composites was developed, which predicts variations of void content during consolidation as well as the time, temperature and pressure required to reach full consolidation. Good correlations between predictions and the experimental data indicate the success of the approach. For a desired, minimum level of void content (X(u)=0.5%), optimum processing windows for manufacturing of CF/PEEK composite parts from the commingled yam preform are suggested.

引用

页码：349 / 358

页数：10

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