화학공학소재연구정보센터
Journal of Materials Science, Vol.32, No.8, 2121-2130, 1997
Application of Poly(Methylsilane) and Nicalon(R) Polycarbosilane Precursors as Binders for Metal/Ceramic Powders in Preparation of Functionally Graded Materials
For the first time, ceramic precursors were applied in the powder metallurgy (P/M) preparation of Functionally Graded Materials (FGM). Two types of FGMs were prepared : Al/SiC for possible aerospace applications and Cu/SiC for dynamic seal applications. There are two main advantages of using ceramic precursors for P/M preparation of FGMs (1) avoidance of the commercially used debinding step and (2) shrinkage control of the individual layers of the composite.