STUDY OF POLYTYPIC PHASE RELATIONS AMONG COMPLEX INORGANIC STRUCTURES.

Abstract

The structure of 2PbO.Fe2O3, corresponding to the mineral hematophanite, and coexisting with plumboferrite in the PbO-Fe2O3 system, was determined to be a derivative of the perovskite structure. Relations with other structure types, e.g., diaboleite, cumengeite, pseudoboleite, boleite, and a ferroelectric mixed-layer series involving Bi2O2 and perovskite layers, are described. The superstructure of plumboferrite was redefined and its relation to magnetoplumbite clarified. Final results of the senaite structure determination are presented. Progress on the construction of a furnace for phase synthesis is reviewed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1968
Accession Number
AD0666201

Entities

People

  • Donald R. Peacor

Organizations

  • University of Michigan

Tags

DTIC Thesaurus Topics

  • Chemical Compounds
  • Construction
  • Minerals
  • Perovskites
  • Superstructures

Readers

  • Aerospace Propulsion Engineering.
  • Materials Science and Engineering.
  • Theoretical Analysis.