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Title: Preparation and thermal expansion of (M{sub 0.5}{sup III}M{sup '}{sub 0.5}{sup V})P{sub 2}O{sub 7} with the cubic ZrP{sub 2}O{sub 7} structure

Abstract

A series of compounds (M{sub 0.5}{sup III}M{sup '}{sub 0.5}{sup V})P{sub 2}O{sub 7}, M{sup III}M{sup 'V}=AlTa, FeTa, GaTa, InNb, YNb, NdTa, and BiTa that are close structural relatives of cubic ZrP{sub 2}O{sub 7} were prepared. Annealing samples with M{sup III}M{sup 'V}=InNb or YNb at temperatures above 600 deg. C did not lead to any long-range cation ordering. The thermal expansion characteristics of samples quenched from 1000 deg. C with M{sup III}M{sup 'V}=AlTa, InNb and YNb were investigated by high-temperature powder diffraction over the temperature range 25-600 deg. C. There are no lattice constant discontinuities in this range, unlike ZrP{sub 2}O{sub 7}. (Al{sub 0.5}Ta{sub 0.5})P{sub 2}O{sub 7} and (In{sub 0.5}Nb{sub 0.5})P{sub 2}O{sub 7} show linear coefficients of thermal expansion (CTEs) of 11.5(2)x10{sup -6} and 11.8(2)x10{sup -6}K{sup -1}, respectively. These values are similar to that for the low-temperature ZrP{sub 2}O{sub 7} structure. However, the linear CTE for (Y{sub 0.5}Nb{sub 0.5})P{sub 2}O{sub 7} (4.8(2)x10{sup -6}K{sup -1}) is similar to that of the high-temperature form of ZrP{sub 2}O{sub 7}.

Authors:
 [1];  [2];  [3];  [4]
  1. School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332-0400 (United States)
  2. School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332-0400 (United States). E-mail: angus.wilkinson@chemistry.gatech.edu
  3. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0245 (United States)
  4. Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6064 (United States)
Publication Date:
OSTI Identifier:
20784795
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 178; Journal Issue: 11; Other Information: DOI: 10.1016/j.jssc.2005.09.006; PII: S0022-4596(05)00409-3; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALUMINIUM COMPOUNDS; ANNEALING; BISMUTH COMPOUNDS; DIFFRACTION; INDIUM COMPOUNDS; IRON COMPOUNDS; LATTICE PARAMETERS; NIOBIUM COMPOUNDS; PHASE TRANSFORMATIONS; PHOSPHATES; TANTALUM COMPOUNDS; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K; THERMAL EXPANSION; YTTRIUM COMPOUNDS

Citation Formats

Varga, Tamas, Wilkinson, Angus P., Haluska, Michael S., and Andrew Payzant, E. Preparation and thermal expansion of (M{sub 0.5}{sup III}M{sup '}{sub 0.5}{sup V})P{sub 2}O{sub 7} with the cubic ZrP{sub 2}O{sub 7} structure. United States: N. p., 2005. Web. doi:10.1016/j.jssc.2005.09.006.
Varga, Tamas, Wilkinson, Angus P., Haluska, Michael S., & Andrew Payzant, E. Preparation and thermal expansion of (M{sub 0.5}{sup III}M{sup '}{sub 0.5}{sup V})P{sub 2}O{sub 7} with the cubic ZrP{sub 2}O{sub 7} structure. United States. doi:10.1016/j.jssc.2005.09.006.
Varga, Tamas, Wilkinson, Angus P., Haluska, Michael S., and Andrew Payzant, E. Tue . "Preparation and thermal expansion of (M{sub 0.5}{sup III}M{sup '}{sub 0.5}{sup V})P{sub 2}O{sub 7} with the cubic ZrP{sub 2}O{sub 7} structure". United States. doi:10.1016/j.jssc.2005.09.006.
@article{osti_20784795,
title = {Preparation and thermal expansion of (M{sub 0.5}{sup III}M{sup '}{sub 0.5}{sup V})P{sub 2}O{sub 7} with the cubic ZrP{sub 2}O{sub 7} structure},
author = {Varga, Tamas and Wilkinson, Angus P. and Haluska, Michael S. and Andrew Payzant, E.},
abstractNote = {A series of compounds (M{sub 0.5}{sup III}M{sup '}{sub 0.5}{sup V})P{sub 2}O{sub 7}, M{sup III}M{sup 'V}=AlTa, FeTa, GaTa, InNb, YNb, NdTa, and BiTa that are close structural relatives of cubic ZrP{sub 2}O{sub 7} were prepared. Annealing samples with M{sup III}M{sup 'V}=InNb or YNb at temperatures above 600 deg. C did not lead to any long-range cation ordering. The thermal expansion characteristics of samples quenched from 1000 deg. C with M{sup III}M{sup 'V}=AlTa, InNb and YNb were investigated by high-temperature powder diffraction over the temperature range 25-600 deg. C. There are no lattice constant discontinuities in this range, unlike ZrP{sub 2}O{sub 7}. (Al{sub 0.5}Ta{sub 0.5})P{sub 2}O{sub 7} and (In{sub 0.5}Nb{sub 0.5})P{sub 2}O{sub 7} show linear coefficients of thermal expansion (CTEs) of 11.5(2)x10{sup -6} and 11.8(2)x10{sup -6}K{sup -1}, respectively. These values are similar to that for the low-temperature ZrP{sub 2}O{sub 7} structure. However, the linear CTE for (Y{sub 0.5}Nb{sub 0.5})P{sub 2}O{sub 7} (4.8(2)x10{sup -6}K{sup -1}) is similar to that of the high-temperature form of ZrP{sub 2}O{sub 7}.},
doi = {10.1016/j.jssc.2005.09.006},
journal = {Journal of Solid State Chemistry},
number = 11,
volume = 178,
place = {United States},
year = {Tue Nov 15 00:00:00 EST 2005},
month = {Tue Nov 15 00:00:00 EST 2005}
}