TY - GEN
T1 - Fiber push out testing before and after exposure
T2 - Corrosion, Wear, Fatigue, and Reliability of Ceramics - 32nd International Conference on Advanced Ceramics and Composites
AU - Ojard, G.
AU - Riester, L.
AU - Trejo, R.
AU - Annis, R.
AU - Gowayed, Y.
AU - Morscher, G.
AU - An, K.
AU - Miller, R.
AU - John, R.
PY - 2009
Y1 - 2009
N2 - The increased interest in ceramic matrix composites requires the knowledge of how the material behaves after periods of exposure to temperature and stress. An important parameter under consideration is the fiber/coat/matrix interfacial sliding, which has a direct impact on the residual properties of the material after exposure. A series of fiber push-out tests were conducted on Melt Infiltrated SiC/SiC material considered as a strong candidate for hot section applications in gas turbine engine especially in the combustor and turbine. Samples were exposed under conditions of creep or dwell fatigue at 1204°C for periods ranging from 10 hours to 2,000 hours under stresses of 110,4 MPa or 165,6 MPa. As part of this effort, the sample configuration was changed from the standard wedge shape sample to a uniform cross section where the sample was taken out of standard microstructural sample mounts. This allowed more samples to be manufactured in a more consistent manner. The results of the sample change from a transmission electron microscopy sample to a uniform cross section sample as well as the effects of exposure will be presented and discussed.
AB - The increased interest in ceramic matrix composites requires the knowledge of how the material behaves after periods of exposure to temperature and stress. An important parameter under consideration is the fiber/coat/matrix interfacial sliding, which has a direct impact on the residual properties of the material after exposure. A series of fiber push-out tests were conducted on Melt Infiltrated SiC/SiC material considered as a strong candidate for hot section applications in gas turbine engine especially in the combustor and turbine. Samples were exposed under conditions of creep or dwell fatigue at 1204°C for periods ranging from 10 hours to 2,000 hours under stresses of 110,4 MPa or 165,6 MPa. As part of this effort, the sample configuration was changed from the standard wedge shape sample to a uniform cross section where the sample was taken out of standard microstructural sample mounts. This allowed more samples to be manufactured in a more consistent manner. The results of the sample change from a transmission electron microscopy sample to a uniform cross section sample as well as the effects of exposure will be presented and discussed.
UR - http://www.scopus.com/inward/record.url?scp=62849089065&partnerID=8YFLogxK
U2 - 10.1002/9780470456347.ch7
DO - 10.1002/9780470456347.ch7
M3 - Conference contribution
AN - SCOPUS:62849089065
SN - 9780470344934
T3 - Ceramic Engineering and Science Proceedings
SP - 65
EP - 74
BT - Corrosion, Wear, Fatigue, and Reliability of Ceramics - A Collection of Papers Presented at the 32nd International Conference on Advanced Ceramics and Composites
PB - American Ceramic Society
Y2 - 27 January 2008 through 1 February 2008
ER -