Mathematical modelling of microwave-enhanced chemical vapour infiltration
Chandradeo Bokhoree
2134/35280
https://repository.lboro.ac.uk/articles/thesis/Mathematical_modelling_of_microwave-enhanced_chemical_vapour_infiltration/9233549
With their excellent high temperature mechanical, chemical and thermal properties,
fibre reinforced ceramic matrix composites have emerged as an important class of materials
having a wide range of applications in various technological fields. Microwave Enhanced
Chemical Vapour Infiltration (MECVI) has been recognized as a new process route because of
its ability to conserve the reliability and durability of the precursor materials. The primary
advantage of using microwaves is that they cause an inverse temperature profile to be formed
that prevents entrapment of accessible porosity and greatly accelerates the process. However,
to develop the MECVI process further, a complete understanding of the effects of the process
parameters on the infiltration mechanism and processing time is necessary. Modelling efforts
can offer an insight into the critical factors in this process and suggest ways to optimize
processing.
A 2-D mathematical model investigating the densification of SiCf/SiC composites by
microwave enhanced Chemical Vapour Infiltration (CVI) under forced-flow of the gaseous
reactants is presented. [Continues.]
2018-10-11 11:37:16
untagged
Materials Engineering not elsewhere classified