Accession Number : AD0673393

Title :   STUDYING OXIDE CERAMICS BY THE HIGH TEMPERATURE ROENTGENOGRAPHY METHOD (ISSLEDOVANIE OKISNOI KERAMIKI METODOM VYSOKOTEMPERATURNOI RENTGENOGRAFII),

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Strekalovskii,V. N. ; Bessonov,A. F. ; Ustyantsev,V. M. ; Burov,G. V.

Report Date : 20 SEP 1967

Pagination or Media Count : 16

Abstract : A description is given of high-temperature attachments for x-ray diffraction studies with photo- and ionization recording of the diffraction pattern (at temperatures between 20 and 1500C). Examples of high-temperature x-ray analyses are given for sintered oxide materials: CeO2, CeO2-SrO, ZrO2-Y2O3, ZrO2-Nd2O3, ZrO2-CaO. The transitions occurring in ZrO2-Nd2O3 and ZrO2-Y2O3 on heating and cooling are determined. The x-ray coefficients of thermal expansion of these samples are found to be lower than the dilatometric ones. It is postulated that the difference in the change of the lattice constant of CeO2 as studied in air and vacuum is due to the formation of a solid solution of Ce2O3 in a vacuum. (Author)

Descriptors :   (*CERAMIC MATERIALS, X RAY DIFFRACTION), OXIDES, CERIUM COMPOUNDS, STRONTIUM COMPOUNDS, YTTRIUM COMPOUNDS, NEODYMIUM COMPOUNDS, CALCIUM OXIDES, ZIRCONIUM OXIDES, PHASE STUDIES, SOLID SOLUTIONS, USSR

Subject Categories : Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE