Accession Number : AD0266727

Title :   ORDERING IN OXIDE SOLID SOLUTIONS

Descriptive Note : Rept. for May 60-Apr 61

Corporate Author : CLEMSON AGRICULTURAL COLL S C

Personal Author(s) : WILSON,H.H.

Report Date : JUN 1961

Pagination or Media Count : 1

Abstract : A study was made of solid solutions formed from mixtures of MgO and ether with oxides of Mn, Fe, Co, or Ni to determine if, by suitable heat treatment, ordering could be induced in certain selected compositions. Heat treatment consisted of firing the prepared solid solutions in suitable atmospheres at 200-degree intervals from 200 C to 1200 C. The specimens were held at each temperature for 100 hr and analyzed by x-ray diffraction to detect superlattice formation. No superlattices were found. It is possible that the lack of ordering might be due to either insufficient time at the proper temperature or to the maximum temperature being too low to allow the required diffusion. Extended times, higher temperatures, and mechanical stress to enhance diffusion will be investigated. (Author)

Descriptors :   *CRYSTAL STRUCTURE, *MAGNESIUM COMPOUNDS, *SOLIDS, COBALT COMPOUNDS, CONTROLLED ATMOSPHERES, CRYSTAL LATTICES, HEAT TREATMENT, IRON COMPOUNDS, MANGANESE COMPOUNDS, MIXTURES, NICKEL COMPOUNDS, OXIDES, PREPARATION, SINTERING, SOLUTIONS(MIXTURES), THERMAL DIFFUSION, X RAY DIFFRACTION

Distribution Statement : APPROVED FOR PUBLIC RELEASE