The interfacial reaction characteristics in SiC/Al composite above liquidus during remelting

The development of interfacial reaction between matrix and reinforcement du ring the remelt recycling is critical to the commercialization and sustaina ble-development of metal matrix composite, but it is very difficult to char acterize the interfacial reaction between the reinforcement and matrix melt above the liquids using a conventional experimental method. In this paper, the interfacial reaction characteristics in SiCp/Al composite above liquid s were investigated using liquid metal X-ray diffraction and differential s canning calorimeter (DSC). A solute-rich region with much more Si content a bove liquids was observed in the composite melt, and the experimental resul ts also showed that the interfacial reaction feature is associated with the solute-rich region with much more Si content. Mechanism for the observed p henomena was discussed in detail. (C) 1998 Published by Elsevier Science S. A. All rights reserved.