Development of interfaces in oxide matrix composites
UNSPECIFIED (1999) Development of interfaces in oxide matrix composites. In: 3rd International Conference on High Tempurature Ceramic Matrix Composites (HT-CMC 3), OSAKA, JAPAN, SEP 06-09, 1998. Published in: HIGH TEMPERATURE CERAMIC MATRIX COMPOSITES III, 164-1 pp. 351-356.Full text not available from this repository.
A number of oxides are evaluated as candidates for use as "interphases" in CMCs. Compounds studied are of the MXO4 type, i.e. phosphates, vanadates & niobates, where M is a rare earth or yttrium ion. These are assessed in terms of their thermal and chemical stability and evidence of de-bonding in conjunction with selected oxides considered as potential fibre/matrix combinations, after heat treatment at 1400 degrees C, the target temperature for application of oxide CMCs in gas-turbines. Methods of deposition of these compounds onto commercially available woven oxide fibres are compared and an optimised procedure for the in-situ deposition of NdPO4 onto 3M's Nextel 720 satin weave has been developed based on the use of an immiscible liquid bi-layer and aqueous solution precursors. The fabrication of shaped components from oxide CMCs using infiltrated fabric pre-forms is also described. In addition, interphases have been successfully deposited on oxide substrates using RF-magnetron sputtering, yielding fine grained, uniform coatings.
|Item Type:||Conference Item (UNSPECIFIED)|
|Subjects:||T Technology > TP Chemical technology
T Technology > TA Engineering (General). Civil engineering (General)
|Series Name:||KEY ENGINEERING MATERIALS|
|Journal or Publication Title:||HIGH TEMPERATURE CERAMIC MATRIX COMPOSITES III|
|Publisher:||TRANS TECH PUBLICATIONS|
|Editor:||Niihara, K and Nakano, K and Sekino, T and Yasuda, E|
|Number of Pages:||6|
|Page Range:||pp. 351-356|
|Title of Event:||3rd International Conference on High Tempurature Ceramic Matrix Composites (HT-CMC 3)|
|Location of Event:||OSAKA, JAPAN|
|Date(s) of Event:||SEP 06-09, 1998|
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