Mechanical properties of TSMG-YBCO

被引：17

作者：

Leenders, A ^{[1
]}

Ullrich, M ^{[1
]}

Freyhardt, HC ^{[1
]}

机构：

[1] Zentrum Funktionswerkstoffe gGmbH Goettingen, D-37073 Gottingen, Germany

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1999年 / 9卷 / 02期

关键词：

D O I：

10.1109/77.784874

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The fracture toughness, K-C of YBCO prepared by the top-seeded-melt-growth (TSMG) method ran be improved by increasing the yttrium content. K-C increases from 1.01 MPa root m for samples with 30 mol % Y2Ba1Cu1O5 (Y-211) addition to a value of 1.44(22)MPa root m for samples with 60 mol % Y-211 addition. Substituting CeO2 for PtO2 results in a further enhancement of K-C In both cases the improvement can be explained by a refinement and homogenization of the distribution of Y-211 particles. The incorporation of ductile particles also contributes to an enhanced fracture toughness of the melt-textured monoliths.

引用

页码：2074 / 2077

页数：4

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