RESISTANCE TO MICRO-PLASTIC DEFORMATION IN SUPERCONDUCTING Y-BA-CU-O

被引：9

作者：

NISHI, Y

TOKUNAGA, S

TOYAMA, T

机构：

[1] Tokai Univ Hiratsuka, Jpn, Tokai Univ Hiratsuka, Jpn

来源：

JOURNAL OF MATERIALS SCIENCE LETTERS | 1988年 / 7卷 / 01期

关键词：

CERAMIC MATERIALS - Deformation - POLISHING - STRAIN - STRESSES - YTTRIUM COMPOUNDS;

D O I：

10.1007/BF01729903

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A study was undertaken to obtain information about the relationship between stress and strain under micro-plastic deformation of Y-Ba-Cu-O which shows high T//c above 90 K. Polishing increases T//c because the surface layer of sintered Y-Ba-Cu oxide decreases T//c. The authors determined the thickness of the surface layer. The resistance to micro-plastic deformation H//v is 520 on the surface and 300 in the bulk. Thus, the oxide is soft. The relationship between load, P, and hole diameter, d, is expressed by an equation in the bulk. From this, a linear stress-strain curve for microdeformation can be deduced.

引用

页码：20 / 22

页数：3

共 7 条

[1] ONSET OF SUPERCONDUCTIVITY IN Y-BA-CU-O AT 100-K [J].

BOURNE, LC ;

COHEN, ML ;

CREAGER, WN ;

CROMMIE, MF ;

STACY, AM ;

ZETTL, A .

PHYSICS LETTERS A, 1987, 120 (09) :494-496

[2] BULK SUPERCONDUCTIVITY AT 91-K IN SINGLE-PHASE OXYGEN-DEFICIENT PEROVSKITE BA2YCU3O9-DELTA [J].

CAVA, RJ ;

BATLOGG, B ;

VANDOVER, RB ;

MURPHY, DW ;

SUNSHINE, S ;

SIEGRIST, T ;

REMEIKA, JP ;

RIETMAN, EA ;

ZAHURAK, S ;

ESPINOSA, GP .

PHYSICAL REVIEW LETTERS, 1987, 58 (16) :1676-1679

[3] HIGH-PRESSURE STUDY OF THE NEW Y-BA-CU-O SUPERCONDUCTING COMPOUND SYSTEM [J].

HOR, PH ;

GAO, L ;

MENG, RL ;

HUANG, ZJ ;

WANG, YQ ;

FORSTER, K ;

VASSILIOUS, J ;

CHU, CW ;

WU, MK ;

ASHBURN, JR ;

TORNG, CJ .

PHYSICAL REVIEW LETTERS, 1987, 58 (09) :911-912

[4] SUPERCONDUCTIVITY AT 95-K IN THE SINGLE-PHASE YBA2CU3O9-Y SYSTEM [J].

KADOWAKI, K ;

HUANG, YK ;

VANSPRANG, M ;

MENOVSKY, AA .

PHYSICA B & C, 1987, 145 (01) :1-4

[5]

NISHI Y, 1985, J MATER SCI LETT, V5, P1135

[6] SUPERCONDUCTIVITY AND MAGNETISM IN THE HIGH-TC SUPERCONDUCTOR Y-BA-CU-O [J].

SUN, JZ ;

WEBB, DJ ;

NAITO, M ;

CHAR, K ;

HAHN, MR ;

HSU, JWP ;

KENT, AD ;

MITZI, DB ;

OH, B ;

BEASLEY, MR ;

GEBALLE, TH ;

HAMMOND, RH ;

KAPITULNIK, A .

PHYSICAL REVIEW LETTERS, 1987, 58 (15) :1574-1576

[7] SUPERCONDUCTIVITY AT 93-K IN A NEW MIXED-PHASE Y-BA-CU-O COMPOUND SYSTEM AT AMBIENT PRESSURE [J].

WU, MK ;

ASHBURN, JR ;

TORNG, CJ ;

HOR, PH ;

MENG, RL ;

GAO, L ;

HUANG, ZJ ;

WANG, YQ ;

CHU, CW .

PHYSICAL REVIEW LETTERS, 1987, 58 (09) :908-910

← 1 →