Thermodynamic analysis of chemical compatibility of several reinforcement materials with niobium aluminides
- Misra, Ajay K.
- Mar 1, 1989.
- Physical Description:
- 1 electronic document
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
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- Chemical compatibility of several reinforcement materials with three niobium aluminides, Nb3Al, Nb2Al, and NbAl3, were examined from thermodynamic considerations. The reinforcement materials considered in this study include carbides, borides, nitrides, oxides, silicides, and Engel-Brewer compounds. Thermodynamics of the Nb-Al system were reviewed and activities of Nb and Al were derived at desired calculation temperatures. Criteria for chemical compatibility between the reinforcement material and Nb-Al compounds have been defined and several chemically compatible reinforcement materials have been identified.
- Other Subject(s):
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19890011665.
Accession ID: 89N21036.
- No Copyright.
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