Preparation and electrical conductivity of BaZr1-xRxO3-α (R = Sc, Y, Ho, Dy, Gd, In)

被引：40

作者：

Gorelov, VP

Balakireva, VB

Kleshchev, YN

Brusentsov, VP

机构：

[1] Russian Acad Sci, Ural Div, Inst High Temp Electrochem, Yekaterinburg 620219, Russia

[2] Russian Fed Nucl Ctr, All russia Res Inst Tech Phys, Snezhinsk 454070, Chelyabinsk Obl, Russia

来源：

INORGANIC MATERIALS | 2001年 / 37卷 / 05期

关键词：

D O I：

10.1023/A:1017553506634

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of process parameters on the density of BaZr0.9Y0.1O3 proton-conductings ceramics was investigated. Dense ceramics (94-96% of theoretical density) were obtained by synthesis from coprecipitated zirconium and yttrium hydroxides and barium carbonate, followed by sintering at 1700 degreesC. The conductivity of BaZr0.93R0.07O3-alpha (R = Sc, Y, Ho, Dy, Gd, In) was measured as a function of temperature and oxygen partial pressure and was found to decrease in the order Y > Ho > Sc > Dy, In > Gd. In air, these materials are hole-ion conductors. At 800 degreesC, BaZr0.93Y0.07O3-alpha has an ionic transference number of 0.16 and ionic conductivity of 3.6 x 10(-4) S/cm.

引用

页码：535 / 538

页数：4

共 11 条

[1]

Bakunov V. S., 1983, T MOSK KHIM TEKHNOL, P67

[2]

BATSANOV SS, 1991, ZH NEORG KHIM+, V36, P3015

[3] PROTONIC CONDUCTION IN CALCIUM, STRONTIUM AND BARIUM ZIRCONATES [J].