Date of Award


Document Type


Degree Name

Master of Science


Department of Engineering Physics

First Advisor

Alex G. Li, PhD.


Fiber-reinforced silicon carbide (SiC) composite materials are important for many applications due to their high temperature strength, excellent thermal shock and impact resistance, high hardness, and good chemical stability. The microstructure and phase composition of SiC composites can be tailored by fiber surface modification, the process parameters, and/or fiber preform architecture. One process by which SiC composites can be produced is chemical vapor deposition (CVD). This thesis primarily focuses on mass transport by gas-phase flow and diffusion, chemical reaction in gas phase and on solid surfaces, and thin film formation on curved surfaces, which are fundamental to the CVD process. We highlighted process parameters that can potentially affect the structures and properties of the CMCs using simple model material systems. We also analyzed the use of a finite element modeling tool, COMSOL Multiphysics, to build the series of models.

AFIT Designator


DTIC Accession Number