METHOD OF FORMING CMC MATERIAL WITH MULTIPLE MATRIX PHASES SEPARATED BY DIFFUSION BARRIER
摘要
A ceramic matrix composite (CMC) material (10) with increased interlaminar strength is obtained without a corresponding debit in other mechanical properties. This is achieved by infusing a diffusion barrier layer (20) into an existing porous matrix CMC to coat the exposed first matrix phase (19) and fibers (12), and then densifying the matrix with repeated infiltration cycles of a second matrix phase (22). The diffusion barrier prevents undesirable sintering between the matrix phases and between the second matrix phase and the fibers during subsequent final firing and use of the resulting component (30) in a high temperature environment.
申请公布号
EP1910248(B1)
申请公布日期
2016.08.31
申请号
EP20060788068
申请日期
2006.07.21
申请人
SIEMENS ENERGY, INC.
发明人
LANE, JAY, E.;MORRISON, JAY, A.;BUTNER, STEVEN, C.;SZWEDA, ANDREW