LANTHANUM, SAMARIUM, AND EUROPIUM ORTHOTANTALATES.

Abstract

Orthotantalates of lanthanum, samarium, and europium were synthesized for the first time. Differential thermal analysis of the oxide mixture La203: Ta205 = 1:1 was carried out. X-ray diffraction pictures of LaTa04, SmTa04, and EuTa04, powders were indexed (Monoclinic structure: z=4; space group I-2). It was determined that the pycnometric densities of LaTa04, SmTa04, and EuTa04 at 20C are 7.9, 8.8, and 8.9 g/sq cm respectively. Magnetic susceptibility was measured at 78.194 and 289K. LaTa04 is diamagnetic while SmTa04 and EuTa04 are paramagnetic. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 12, 1964
Accession Number
AD0601550

Entities

People

  • E. I. Krylov
  • M. M. Pinaeva-strelina

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Differential Thermal Analysis
  • Diffraction
  • Elements
  • Europium
  • Lanthanum
  • Metals
  • Rare Earth Elements
  • Samarium
  • Thermal Analysis
  • X Rays
  • X-Ray Diffraction

Readers

  • Archaeological Resource Survey
  • Materials Science and Engineering.
  • Trauma Surgery or Emergency Medicine.

Technology Areas

  • Space