Radwaste Immobilization by Structural Modification—the Crystallochemical Properties of SYNROC, a Titanate Ceramic

Timothy J. White*, Robert L. Segall, Peter S. Turner

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

22 Citations (Scopus)

Abstract

New studies utilizing electron microscopic techniques have revealed the immobilization of radionuclides in crystalline ceramic waste forms to be not merely a question of substituting waste elements into the appropriate crystallographic sites of a host matrix. Rather than entering the ceramic as a “continuous” solid solution it has been found that the incorporation of highly radioactive waste elements is commonly accompanied by structural modification. This may take the form of cation ordering, crystallographic shear, or twinning on a unit cell scale. Such mechanisms considerably enhance the capacity of a ceramic to immobilize (simulated) radwaste and impart to it the flexibility to respond to inevitable variations in wastestream composition.

Original languageEnglish
Pages (from-to)357-365
Number of pages9
JournalAngewandte Chemie - International Edition
Volume24
Issue number5
DOIs
Publication statusPublished - May 1985
Externally publishedYes

ASJC Scopus Subject Areas

  • Catalysis
  • General Chemistry

Keywords

  • Ceramics
  • Radiochemistry
  • Radionuclides
  • Titanates
  • Waste disposal

Fingerprint

Dive into the research topics of 'Radwaste Immobilization by Structural Modification—the Crystallochemical Properties of SYNROC, a Titanate Ceramic'. Together they form a unique fingerprint.

Cite this