skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Mode of formation and stability of the A/sub n/B/sub n/O/sub 3n+2/ phases as evidenced by the systems La/sub 2/Ti/sub 2/O/sub 7/--CaTiO/sub 3/, Nd/sub 2/Ti/sub 2/O/sub 7/--CaTiO/sub 3/ and Ca/sub 2/Nb/sub 2/O/sub 7/--CaTiO/sub 3/ (in French)

Abstract

The stability of the A/sub n/B/sub n/O/sub 3n+2/ phases, whose structure is derived from the perovskite structure, was investigated through x-ray diffraction, in the following systems: La/sub 2/Ti/sub 2/O/sub 7/--CaTiO/sub 3/, Nd/sub 2/Ti/sub 2/O/sub 7/--CaTiO/sub 3/ and Ca/sub 2/Nb/sub 2/O/sub 7/--CaTiO/sub 3/. Some of the phases quenched from the liquid are metastable and include vacancies over A and B sites. A model of formation of these phases is proposed.

Authors:
; ;
Publication Date:
Research Org.:
Laboratoire de Chimie du Solide Mineral, Paris, France
OSTI Identifier:
6511239
Resource Type:
Journal Article
Journal Name:
Mater. Res. Bull.; (United States)
Additional Journal Information:
Journal Volume: 12:9
Country of Publication:
United States
Language:
French
Subject:
36 MATERIALS SCIENCE; CALCIUM OXIDES; CRYSTAL STRUCTURE; SYNTHESIS; LANTHANUM OXIDES; TITANIUM OXIDES; NEODYMIUM OXIDES; NIOBIUM OXIDES; STABILITY; ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; LANTHANUM COMPOUNDS; NEODYMIUM COMPOUNDS; NIOBIUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; 360201* - Ceramics, Cermets, & Refractories- Preparation & Fabrication; 360202 - Ceramics, Cermets, & Refractories- Structure & Phase Studies

Citation Formats

Nanot, M, Queyroux, F, and Gilles, J C. Mode of formation and stability of the A/sub n/B/sub n/O/sub 3n+2/ phases as evidenced by the systems La/sub 2/Ti/sub 2/O/sub 7/--CaTiO/sub 3/, Nd/sub 2/Ti/sub 2/O/sub 7/--CaTiO/sub 3/ and Ca/sub 2/Nb/sub 2/O/sub 7/--CaTiO/sub 3/. United States: N. p., 1977. Web. doi:10.1016/0025-5408(77)90103-9.
Nanot, M, Queyroux, F, & Gilles, J C. Mode of formation and stability of the A/sub n/B/sub n/O/sub 3n+2/ phases as evidenced by the systems La/sub 2/Ti/sub 2/O/sub 7/--CaTiO/sub 3/, Nd/sub 2/Ti/sub 2/O/sub 7/--CaTiO/sub 3/ and Ca/sub 2/Nb/sub 2/O/sub 7/--CaTiO/sub 3/. United States. doi:10.1016/0025-5408(77)90103-9.
Nanot, M, Queyroux, F, and Gilles, J C. Thu . "Mode of formation and stability of the A/sub n/B/sub n/O/sub 3n+2/ phases as evidenced by the systems La/sub 2/Ti/sub 2/O/sub 7/--CaTiO/sub 3/, Nd/sub 2/Ti/sub 2/O/sub 7/--CaTiO/sub 3/ and Ca/sub 2/Nb/sub 2/O/sub 7/--CaTiO/sub 3/". United States. doi:10.1016/0025-5408(77)90103-9.
@article{osti_6511239,
title = {Mode of formation and stability of the A/sub n/B/sub n/O/sub 3n+2/ phases as evidenced by the systems La/sub 2/Ti/sub 2/O/sub 7/--CaTiO/sub 3/, Nd/sub 2/Ti/sub 2/O/sub 7/--CaTiO/sub 3/ and Ca/sub 2/Nb/sub 2/O/sub 7/--CaTiO/sub 3/},
author = {Nanot, M and Queyroux, F and Gilles, J C},
abstractNote = {The stability of the A/sub n/B/sub n/O/sub 3n+2/ phases, whose structure is derived from the perovskite structure, was investigated through x-ray diffraction, in the following systems: La/sub 2/Ti/sub 2/O/sub 7/--CaTiO/sub 3/, Nd/sub 2/Ti/sub 2/O/sub 7/--CaTiO/sub 3/ and Ca/sub 2/Nb/sub 2/O/sub 7/--CaTiO/sub 3/. Some of the phases quenched from the liquid are metastable and include vacancies over A and B sites. A model of formation of these phases is proposed.},
doi = {10.1016/0025-5408(77)90103-9},
journal = {Mater. Res. Bull.; (United States)},
number = ,
volume = 12:9,
place = {United States},
year = {1977},
month = {9}
}