Journal of Materials Research

Articles

Evidence of critical scaling behavior during vapor phase synthesis of continuous filament composites

J. H. Kinneya1 c1 and D. L. Haupta1

a1 Chemistry and Materials Science Department, Lawrence Livermore National Laboratory, Livermore, California 94550

Abstract

We present experimental measurements of the accessible pore fraction in ceramic matrix composites during consolidation by vapor phase infiltration. For two topologically distinct filament architectures, the accessible pore fraction decreased during consolidation with a power law decay and a critical scaling exponent of 0.41 (R2 = 0.97). A three-dimensional analysis of the percolating pores revealed that the structures became topologically equivalent and simply connected near the critical density.

(Received August 01 1996)

(Accepted November 12 1996)

Correspondence:

c1 Address all correspondence to this author.

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