Published September 2006 | Version v1
Journal article Metadata-only

A- and B-site solubilities of trivalent rare-earth cations and B-site cation ordering in lead magnesium niobate

Creators

  • 1. Rostovskij Gosudarstvennyj Univ., Rostov-na-Donu (Russian Federation)

Description

The solubility limits of trivalent rare-earth cations of widely different ionic radii on the A and B sites of lead magnesium niobate (PMN) have been determined. The yttrium, magnesium, and niobium cations in yttrium-doped PMN have been shown to be 1 : 1 ordered on the B site. The ordering has been studied using computer modeling, both with and without allowance for Pb vacancies on the A site. The dielectric properties of the trivalent rare-earth cation doped PMN ceramics have been investigated

Abstract (Russian)

Установлены пределы растворимости трехзарядных катионов лантаноидов и иттрия с широким диапазоном ионных радиусов в подрешетках А и В магнониобата свинца. Обнаружено 1:1-упорядоченное расположение катионов иттрия, магния и ниобия в подрешетке В иттриймагнониобата свинца, и проведено компьютерное моделирование различных типов упорядочения без учета и с учетом вакансий свинца. Изучены диэлектрические свойства полученных материалов

Additional details

Additional titles

Original title (Russian)
Растворимост' трехзарядных катионов RZM В А- и В-подрешетках и упорядочение магнониобата свинца

Publishing Information

Journal Title
Neorganicheskie Materialy
Journal Volume
42
Journal Issue
9
Journal Page Range
p. 1106-1111
ISSN
0002-337X
CODEN
NEOMB8

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
38029618
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ATOMIC RADII; CATIONS; CHEMICAL COMPOSITION; CONCENTRATION RATIO; CRYSTAL LATTICES; LATTICE PARAMETERS; LEAD COMPOUNDS; MAGNESIUM COMPOUNDS; NIOBATES; PERMITTIVITY; RARE EARTH COMPOUNDS; SOLUBILITY; YTTRIUM COMPOUNDS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHARGED PARTICLES; CRYSTAL STRUCTURE; DIELECTRIC PROPERTIES; DIMENSIONLESS NUMBERS; ELECTRICAL PROPERTIES; IONS; NIOBIUM COMPOUNDS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; REFRACTORY METAL COMPOUNDS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
9 refs., 6 figs., 1 tab.