WET CHEMICAL DETERMINATION OF THE OXYGEN-CONTENT IN YBA2CU4OZ SAMPLES SYNTHESIZED BY VARIOUS METHODS

被引：18

作者：

FUKUOKA, A

KARPPINEN, M

SEIJI, N

VALO, J

KAREIVA, A

NIINISTO, L

LESKELA, M

KOSHIZUKA, N

YAMAUCHI, H

机构：

[1] HELSINKI UNIV TECHNOL,INORGAN & ANALYT CHEM LAB,SF-02150 ESPOO,FINLAND

[2] HELSINKI UNIV,DEPT CHEM,SF-00014 HELSINKI,FINLAND

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1995年 / 8卷 / 08期

关键词：

D O I：

10.1088/0953-2048/8/8/012

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The oxygen contents in YBa2Cu4Oz samples have been determined by two wet chemical redox methods, i.e. by Coulometric and iodometric titrations. Three different samples, synthesized by sol-gel, LiF catalyst and O-2 hot-isostatic-press (HIP) techniques, are studied. The results of the two titration methods agree well with each other for all samples. The oxygen content z appears to be dependent on the oxygen pressure applied during the synthesis, since z values slightly below the stoichiometric number of 8.00 have been obtained for the samples prepared under 1 atm oxygen pressure, while for the O-2 HIP treated sample the observed oxygen content is z = 8.00 +/- 0.01.

引用

页码：673 / 675

页数：3

共 8 条

[1] SYNTHESIS OF BULK SUPERCONDUCTING YBA2CU4O8 AT ONE ATMOSPHERE OXYGEN-PRESSURE [J].