Hot isostatic pressing of high temperature superconducting ceramics

被引：0

作者：

Niska, John ^{[1
]}

Loberg, Bengt ^{[1
]}

机构：

[1] Lulea Univ of Technology, Lulea, Sweden

来源：

Materials Technology | 1994年 / 9卷 / 9-10期

关键词：

Electric properties - High temperature superconductors - Hot pressing - Porosity - Pressure - Sintering - Superconductivity - Temperature - Yttrium compounds;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Large specimens of ceramic superconductors are difficult to solid-state sinter to full density, while maintaining superconductivity, without the high temperatures and pressures found in a hot isostatic press (HIP). HIPing can give highly dense, superconducting Bi2Sr2CaCu2O8 (Bi2212) and Bi2Sr2Ca2Cu3O10 (Bi2223) with only slight decomposition. If Y123 is HIPed to full density in a metal capsule, then the nonsuperconducting tetragonal phase forms as a result of decomposition. HIPing of CuO plus YBa2Cu3O7 gives highly dense, superconducting YBa2Cu4O8 (Y124), which is stable at high temperatures and oxygen pressures.

引用

页码：211 / 215