TY - JOUR
T1 - CVD mullite and mullite-alumina corrosion protection coatings for silicon based ceramics
AU - Zemskova, S. M.
AU - Haynes, J. A.
AU - Cooley, K. M.
PY - 2001
Y1 - 2001
N2 - Application of silicon-based ceramics (SiC, Si3N4) and SiC/SiC composites as high-temperature structural materials requires the development of environmentally resistant coatings due to rapid degradation of the protective silica scale in high temperature water vapor. The CVD method of fabricating dense, high-purity, crystalline mullite (3Al2O3x2SiO2) and mullite-alumina coatings was utilized in this study. The textured mullite coatings were generally comprised of crystalline grains (0.3-0.5 μm) with a columnar structure. Coatings with thickness of less than 2 μm, provided excellent corrosion protection for Si3N4 and SiC/SiC exposed to low-velocity, high pressure (1 MPa) steam at 1200°C.
AB - Application of silicon-based ceramics (SiC, Si3N4) and SiC/SiC composites as high-temperature structural materials requires the development of environmentally resistant coatings due to rapid degradation of the protective silica scale in high temperature water vapor. The CVD method of fabricating dense, high-purity, crystalline mullite (3Al2O3x2SiO2) and mullite-alumina coatings was utilized in this study. The textured mullite coatings were generally comprised of crystalline grains (0.3-0.5 μm) with a columnar structure. Coatings with thickness of less than 2 μm, provided excellent corrosion protection for Si3N4 and SiC/SiC exposed to low-velocity, high pressure (1 MPa) steam at 1200°C.
UR - http://www.scopus.com/inward/record.url?scp=0034849224&partnerID=8YFLogxK
U2 - 10.1051/jp4:20013107
DO - 10.1051/jp4:20013107
M3 - Conference article
AN - SCOPUS:0034849224
SN - 1155-4339
VL - 11
SP - Pr3861-Pr3867
JO - Journal De Physique. IV : JP
JF - Journal De Physique. IV : JP
IS - 3
T2 - 13th European Conference on Chemical Vapor Deposition (EUROCVD 13)
Y2 - 26 August 2001 through 31 August 2001
ER -