EFFECT OF Y2BACUO5 ON FRACTURE-TOUGHNESS OF YBCO PREPARED BY A MPMG PROCESS

被引：66

作者：

FUJIMOTO, H ^{[1
]}

MURAKAMI, M ^{[1
]}

KOSHIZUKA, N ^{[1
]}

机构：

[1] ISTEC,SUPERCOND RES LAB,KOTO KU,TOKYO 135,JAPAN

来源：

PHYSICA C | 1992年 / 203卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90514-D

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The fracture toughness of melt-powder-melt-growth (MPMG) processed YBaCuO samples was measured and the effect on the fracture toughness of the dispersed Y2BaCuO5 (211) particles in the 123 superconducting phase was found. Preferred fracture planes were the (100), (010) and (001) planes, and the fracture toughness of the (001) plane was lower than those of the (100) and (010) planes. The indentation fracture method indicated that K(c)=0.88-1.2 MPa m1/2 in an inert environment for YBaCuO crystals without the 211 particles, when the crack plane is the (100) plane or the (010) plane. The presence of the 211 particles in the 123 matrix increased the fracture toughness in this direction up to 1.6-2.1 MPa m1/2.

引用

收藏

页码：103 / 110

页数：8

相关论文

共 23 条

[1] A CRITICAL-EVALUATION OF INDENTATION TECHNIQUES FOR MEASURING FRACTURE-TOUGHNESS .1. DIRECT CRACK MEASUREMENTS [J].

ANSTIS, GR ;

CHANTIKUL, P ;

LAWN, BR ;

MARSHALL, DB .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1981, 64 (09) :533-538

[2] MAGNETIZATION OF HARD SUPERCONDUCTORS [J].

BEAN, CP .

PHYSICAL REVIEW LETTERS, 1962, 8 (06) :250-+

[3] FRACTURE-TOUGHNESS MEASUREMENTS OF YBA2CU3OX SINGLE-CRYSTALS [J].

COOK, RF ;

DINGER, TR ;

CLARKE, DR .

APPLIED PHYSICS LETTERS, 1987, 51 (06) :454-456

[4] FRACTURE TOUGHNESS DETERMINATIONS BY INDENTATION [J].

EVANS, AG ;

CHARLES, EA .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1976, 59 (7-8) :371-372

[5] CRACK DEFLECTION PROCESSES .1. THEORY [J].

FABER, KT ;

EVANS, AG .

ACTA METALLURGICA, 1983, 31 (04) :565-576

[6] FRACTURE-TOUGHNESS OF YBACUO PREPARED BY MPMG PROCESS [J].

FUJIMOTO, H ;

MURAKAMI, M ;

OYAMA, T ;

SHIOHARA, Y ;

KOSHIZUKA, N ;

TANAKA, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1990, 29 (10) :L1793-L1795

[7]

Fujimoto H., 1990, Advances in Superconductivity II. Proceedings of the 2nd International Symposium on Superconductivity (ISS '89), P285

[8] YBA2CU3OX TOUGHENED BY ZRO2 ADDITIONS [J].

GORETTA, KC ;

LACY, OD ;

BALACHANDRAN, U ;

SHI, D ;

ROUTBORT, JL .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1990, 9 (04) :380-381

[9] ANISOTROPIC HARDNESS AND FRACTURE-TOUGHNESS OF HIGHLY ALIGNED YBA2CU3O7-DELTA [J].

GOYAL, A ;

FUNKENBUSCH, PD ;

KROEGER, DM ;

BURNS, SJ .

JOURNAL OF APPLIED PHYSICS, 1992, 71 (05) :2363-2367

[10] MECHANICAL-PROPERTIES OF HIGHLY ALIGNED YBA2CU3O7-DELTA - EFFECT OF Y2BACUOX PARTICLES [J].

GOYAL, A ;

OLIVER, WC ;

FUNKENBUSCH, PD ;

KROEGER, DM ;

BURNS, SJ .

PHYSICA C, 1991, 183 (4-6) :221-233