Biasing reaction pathways in in-situ composites

摘要

In-situ composites include materials in which desirable reinforcements, matrices or interphases, are formed during processing. One of the most attrative approaches to obtaining such materials involves biasing reactions to alter the sequence of phase formation such that desirable phases and morphologies can obtained. Opportunities for this arise because of the multiplicity of diffusion pathways existing in systems which are of ternary order or higher. The paper discusses processing strategies which offer potential to produce stable, inexpensive composite designs.