WEAVE AND FIBER VOLUME EFFECTS IN A PIP CMC MATERIAL SYSTEM

摘要

With the increasing interest in ceramic matrix composites for a wide range of applications, fundamental research is needed in the area of multiple weaves and fiber volume. Understanding how the material performs with differing weaves and fiber volume will affect the end insertion application. With this in mind, a series of three panels were fabricated via a polymer infiltration process: 8 harness satin (HS) balanced symmetric layup, 8 HS bias weave, and angle interlock. From these panels, a series of characterization efforts were undertaken with the sample oriented in both the warp and fill direction: with differing fiber volumes. These tests consisted of tensile, interlaminar shear, interlaminar tensile, in-plane thermal expansion and through thickness thermal conductivity. In addition, micro-structural characterization was done. The results from this testing will be presented, trends reviewed and analysis done.