Fabrication of New Composite Materials,
Abstract
The feasibility of fabricating lamellar ceramic-based composites with synthetic fluorine mica has been demonstrated. Ba-mica/Al2O3 composites with greater than 99.5% of theoretical density have been produced. If the thermal shock resistance of these materials is also enhanced, potential applications include structural components in turbine engines and high temperature bearings. Reactive hot-pressing of K-mica with gamma-Al2O3 showed that fully dense K-mica/Al2O3 composites are not feasible by hot-pressing up to 7000 psi. The work did demonstrate, however, that this technique allows for the fabrication of eutectic-like MgAl2O4/Al2O3 composites 700 C below the eutectic temperature.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1972
- Accession Number
- AD0750353
Entities
People
- James W. McCauley
Organizations
- United States Army Research Laboratory