Diffusion model of intrinsic defects in lead zirconate titanate films on heat treatment in air

被引：16

作者：

Mukhin, N. V. ^{[1
]}

机构：

[1] St Petersburg Electrotech Univ LETI, St Petersburg 197376, Russia

来源：

GLASS PHYSICS AND CHEMISTRY | 2014年 / 40卷 / 02期

关键词：

lead zirconate titanate films; high-temperature treatment; deviation from stoichiometry; quasi-chemical reaction; diffusion of intrinsic deffects;

D O I：

10.1134/S108765961402014X

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A one-dimensional model describing the diffusion of intrinsic defects in lead zirconate titanate (LZT) films of nonstoichiometric composition during their high-temperature treatment is proposed. The model includes the diffusion of vacancies by lead and oxygen, the formation and decay of their associates, interaction with extensive defects (dislocations in LZT films and the near-surface layer), interstitial inclusions, and LZT film contact with air leading to lead oxide evaporation from LZT film and its saturation by oxygen. The dependences of LZT film composition on the temperature and time of treatment are calculated. The possibility the concentration's oversaturation by lead in a near-surface layer of LZT film, which can lead to the release of lead oxide, is shown.

引用

页码：238 / 242

页数：5

共 18 条

[1]

[Афанасьев Валентин Петрович Afanasjev Valentin Petrovich], 2011, [Известия высших учебных заведений России. Радиоэлектроника, Izvestiya vysshikh uchebnykh zavedenii Rossii. Radioelektronika], P79

[2] Point defect chemistry of metal oxide heterostructures [J].

Aggarwal, S ;

Ramesh, R .

ANNUAL REVIEW OF MATERIALS SCIENCE, 1998, 28 :463-499

[3]

Bokshtein B.S., 1986, Thermodynamics and Kinetics of Grain Boundaries in Metals

[4] Thermodynamic assessment of the PZT system [J].

Cancarevic, Marija ;

Zinkevich, Matvei ;

Aldinger, Fritz .

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 2006, 114 (1335) :937-949

[5]

Fedorov K. A., 2012, VESTN RYAZAN GOS R 2, V4, P43

[6] INTRINSIC NONSTOICHIOMETRY IN LEAD ZIRCONATE LEAD TITANATE SYSTEM DETERMINED BY KNUDSEN EFFUSION [J].

HOLMAN, RL ;

FULRATH, RM .

JOURNAL OF APPLIED PHYSICS, 1973, 44 (12) :5227-5236

[7]

KREGER F, 1964, CHEM IMPERFECT CRYST

[8]

Mukhin N.V., 2013, MUKHIN NV

[9]

Mukhin N.V., 2009, 2 NAN INT FOR RUSN 2

[10]

[Мухин Николай Вячеславович Mukhin Nicolay Vjacheslavovich], 2012, [Известия высших учебных заведений России. Радиоэлектроника, Izvestiya vysshikh uchebnykh zavedenii Rossii. Radioelektronika], P88

← 1 2 →