Accession Number : AD0838770

Title :   CONTRIBUTIONS CONCERNING SEPARATION OF RARE EARTHS. IX. THE SYSTEMS TERBIUM OXIDE-YTTRIUM OXIDE AND TERBIUM OXIDE-ERBIUM OXIDE (DIE SYSTEME TERBIUMOXID-YTTRIUMOXID UND TERBIUMOXID-ERBIUMOXID),

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH

Personal Author(s) : Wolf, L. ; Schwab, H.

Report Date : 19 SEP 1967

Pagination or Media Count : 19

Abstract : The structural relationship of air-annealed samples of Terbium oxide-Yttrium oxide and Terbium oxide-Erbium oxide systems are discussed. The investigation of crystal structure and lattice dimensions were considered primarily. The analytical investigation of the disposable oxygen is also a principal part of this work. The authors make an attempt to explain the anomaly of the lattice constants of the two systems as a function of the terbium oxide content. The methods of experimental work carried out in this investigation are given. (Author)

Descriptors :   (*TERBIUM COMPOUNDS, CRYSTAL STRUCTURE), (*YTTRIUM COMPOUNDS, X RAY DIFFRACTION), RARE EARTH COMPOUNDS, OXIDES, PURIFICATION, REDUCTION(CHEMISTRY), CRYSTAL DEFECTS, CONTROLLED ATMOSPHERES, EAST GERMANY.

Subject Categories : Inorganic Chemistry
      Metallurgy and Metallography
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE