DEVELOPMENT OF NEW CERAMIC MATERIALS (ZYTTRITE) BY THERMAL AND HYDROLYTIC DECOMPOSITION OF METAL ALCOHOLATES.
Abstract
The decomposition of selected organometallic compounds has been employed as the means to obtaining high purity fine particulate precursor powders for the preparation of improved ceramic bodies. This report specifically covers the development of Zyttrite, a fully cubic yttria-stabilized zirconia mixed oxide. This is a high density fine grained zirconia body which is stable at temperatures exceeding 4000 F for long periods of time in dynamic oxidizing environments. Thin sections of this material are capable of transmitting visible and infrared radiation. Prolonged cycling produces no surface attack and no matrix destabilization. The report covers all facets of the Zyttrite development from the preparation of alkoxides to the properties of high density bodies made from the alkoxy-based oxide powders. Property data on laboratory specimens are given for thermal conductivity, thermal expansion, composition, stabilization, density, microstructure, dielectric constant, transmission of visible and infrared radiation, and ultraviolet-region reflectance. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1966
- Accession Number
- AD0815055
Entities
People
- C. T. Lynch
- J. S. Smith
- K. S. Mazdiyasni
Organizations
- Air Force Research Laboratory