THE USE OF THE PROFILE ANALYSIS OF DIFFRACTION PEAKS FOR DETERMINATION OF THE PHASE RELATIONSHIPS IN THE SYSTEM (1 -2x)BiScO3 xPbTiO3 • xPbMg1/3Nb2/3O3 NEAR THE MORPHOTROPIC BOUNDAR-Reference-Cited by-同舟云学术

THE USE OF THE PROFILE ANALYSIS OF DIFFRACTION PEAKS FOR DETERMINATION OF THE PHASE RELATIONSHIPS IN THE SYSTEM (1 -2x)BiScO₃ xPbTiO₃ • xPbMg_1/3Nb_2/3O₃ NEAR THE MORPHOTROPIC BOUNDAR

Published:2019-05-15 Issue:4 Volume:85 Page:22-27
ISSN:2588-0187
Container-title:Industrial laboratory. Diagnostics of materials
language:
Short-container-title:Zavod. lab., Diagn. mater.

Author:

Sirotinkin Vladimir R.¹,Bush Alexandr A.²,Spitsin Alexandr I.²,Segalla Andrei G.³

Affiliation:

1. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow

2. Moscow Technological University (MIREA), Moscow, 119454

3. ELPA Research Institute, Zelenograd, Moscow

Abstract

To determine the phase relationships in the system (1 - 2x)BiSc03 • xPbTi03 • xPbMg1/3Nb2/303 near the morphotropic boundary, the ceramic samples for x = 0.34 and x = 0.46 were studied by the XRD method. The profiles of nine regions of the XRD patterns were analyzed using WinFit software. In both cases, a much better agreement with the experimental data was observed with the introduction of additional phases with cubic symmetry. The simulation of the full x-ray diffraction patterns of the samples using the Le Bail method was also carried out. The studied samples contain two phases: the main with a cubic (o = 4.0432 A) (x = 0.34) and tetragonal (o = 3,9963 А, с = 4.0580 A) (x = 0.46) unit cells and additional one. The additional phases with broad diffraction peaks can be considered cubic (with the unit cell parameters a - 4.045 A and a - 4.017 A, respectively).

Publisher

TEST-ZL Publishing

Subject

Condensed Matter Physics

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