High-temperature neutron powder diffraction study of the structural phase transition between α and α′ phases in tricalcium phosphate Ca3(PO4)2

2003 ◽  
Vol 372 (5-6) ◽  
pp. 779-783 ◽  
Author(s):  
Masatomo Yashima ◽  
Atsushi Sakai
Keyword(s):  
Phase Transition ◽  
High Temperature ◽  
Diffraction Study ◽  
Structural Phase Transition ◽  
Powder Diffraction ◽  
Tricalcium Phosphate ◽  
Structural Phase ◽  
Neutron Powder Diffraction

Structural Phase Transition of Orthorhombic LaCrO3 Studied by Neutron Powder Diffraction

2000 ◽  
Vol 154 (2) ◽  
pp. 524-529 ◽  
Author(s):  
K. Oikawa ◽  
T. Kamiyama ◽  
T. Hashimoto ◽  
Y. Shimojyo ◽  
Y. Morii
Keyword(s):  
Phase Transition ◽  
Structural Phase Transition ◽  
Powder Diffraction ◽  
Structural Phase ◽  
Neutron Powder Diffraction

Structural studies of α-Bi2O3by neutron powder diffraction

2001 ◽  
Vol 16 (4) ◽  
pp. 227-230 ◽  
Author(s):  
S. A. Ivanov ◽  
R. Tellgren ◽  
H. Rundlo¨f ◽  
V. G. Orlov
Keyword(s):  
Experimental Data ◽  
Phase Transition ◽  
High Temperature ◽  
Powder Diffraction ◽  
Rietveld Method ◽  
Structural Phase ◽  
Magnetic Behavior ◽  
Neutron Powder Diffraction ◽  
Structural Studies ◽  
Electron Subsystem

A detailed neutron powder diffraction study of the atomic structure of α-Bi2O3at high temperatures using the Rietveld method was performed to clarify the nature of the unusual magnetic behavior and the origin of the high temperature dielectric anomalies of α-Bi2O3in the temperature interval 300–700 K. Analysis of obtained experimental data shows that there are no evidence of a structural phase transition in α-Bi2O3between 295 and 660 K. The observed high temperature dielectric anomalies in α-Bi2O3are evidently governed by changes in the electron subsystem of the bismuth oxide.

Sign in / Sign up

Export Citation Format

Share Document