THE EFFECT OF IMPURITIES AND TITANIUM DIOXIDE ADMIXTURES ON THE PROCESS OF STABILIZING ZIRCONIUM DIOXIDE

Abstract

TiO2 present in technical ZrO2 in form of admixture or artificially added, does not produceA POSITIVE AFFECT ON THE SINTERING OF Zr mixtures. In addition it reduces the stabilization of ZrO2 in solid solution of cubical structure, binding a part of the stabilizing admixture in the formation of corresponding (homologous) titanates. The presence of TiO2 promotes, in addition, coarse grain crystallization of ZrO2, which also has a negative effect (deterioration) on the mechanical properties of the objects. When stabilizing with MgO the negative influence of TiO2 is reflected more vividly then during the stabilization with CaO. The content of TiO2 in technical ZrO2 should be taken under consideration and compensated during the stabilization of such a product by a corresponding increase in the addition of the stabilizing acid. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 21, 1961
Accession Number
AD0265796

Entities

People

  • A.b. Andreyeva
  • E.k. Keler

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Ceramic Materials
  • Crystallization
  • Dioxides
  • Impurities
  • Mechanical Properties
  • Mixtures
  • Sintering
  • Solid Solutions
  • Titanates
  • Titanium
  • Titanium Compounds
  • Titanium Dioxide
  • Zirconium

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Nanocomposite Materials Science
  • Pavement Materials Engineering.