Ceramic composite article manufacture using thin plies

Details Ceramic composite article manufacture using thin plies Ceramic composite article manufacture using thin plies

C - Chemistry, Metallurgy

04

B

C04B 35/84 (2006.01) C04B 35/80 (2006.01)

Patent

CA 2613789

Thin plies used to manufacture components having changes in contour and changes in thickness and in fabricating thin cross-sections utilizing scrims. A scrim is applied to the surface of a thin, high temperature CMC prepreg ply. The scrim assists in maintaining the integrity of the thin ply during handling and lay-up operations thereby preventing damage to the thin plies and the lay-up. The scrim is a thin supportive layer applied to the surface of a thin prepreg to improve its handling characteristics. The scrim can be a coarse or fine mesh of thin or heavy fiber applied as a reinforcement. The scrim can be a temporary removable structure or can be incorporated into the component as part of the thin ply. The structure and composition of the scrim will be dependent upon whether the scrim is a temporary removable structure or incorporated permanently into the component.

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