ORDERING IN OXIDE SOLID SOLUTIONS

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)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1961
Accession Number
AD0266727

Entities

People

  • H.h. Wilson

Tags

DTIC Thesaurus Topics

  • Atmospheres
  • Diffraction
  • Diffusion
  • Heat Treatment
  • Intervals
  • Mixtures
  • Solid Solutions
  • Superlattices
  • Wave Phenomena
  • X Rays
  • X-Ray Diffraction

Readers

  • Computational Modeling and Simulation
  • Materials Science and Engineering.