ORDER-DISORDER TRANSITIONS AND METASTABLE PHASES PRODUCED BY MECHANICAL DEFORMATIONS IN THE YBA2CU3O7-X SUPERCONDUCTING SYSTEM

被引：17

作者：

LAVALLEE, F ^{[1
]}

SIMONEAU, M ^{[1
]}

LESPERANCE, G ^{[1
]}

SCHULZ, R ^{[1
]}

机构：

[1] HYDRO QUEBEC RES INST,VARENNES J3X 1S1,QUEBEC,CANADA

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.44.12003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High-energy mechanical deformations have been used to induce order-disorder transitions in the YBa2Cu3O7-x orthorhombic structure and to synthesize metastable phases. During the milling process, a disorder is produced on the oxygen sublattice and on the Y- and Ba-cationic sites. A metastable simple cubic (Y0.33Ba0.67)CuO3-y structure is formed. This cubic phase can also be synthesized by mechanical alloying a mixture of the elemental oxides. Discussions on the mechanism of formation, the thermal stability of the metastable structure, and the superconducting properties are presented.

引用

收藏

页码：12003 / 12008

页数：6

相关论文

共 19 条

[1] OXIDE CHEMISTRY .2. TERNARY OXIDES CONTAINING COPPER IN OXIDATION STATES-1, STATES-2, STATES-3, AND STATES-4 [J].

ARJOMAND, M ;

MACHIN, DJ .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1975, (11) :1061-1066

[2] ANALYSIS OF CALORIMETRIC MEASUREMENTS OF GRAIN-GROWTH [J].

CHEN, LC ;

SPAEPEN, F .

JOURNAL OF APPLIED PHYSICS, 1991, 69 (02) :679-688

[3] FORMATION OF QUASICRYSTALS BY MECHANICAL ALLOYING [J].

ECKERT, J ;

SCHULTZ, L ;

URBAN, K .

APPLIED PHYSICS LETTERS, 1989, 55 (02) :117-119

[4] GLASS-FORMING RANGE IN MECHANICALLY ALLOYED NI-ZR AND THE INFLUENCE OF THE MILLING INTENSITY [J].

ECKERT, J ;

SCHULTZ, L ;

HELLSTERN, E ;

URBAN, K .

JOURNAL OF APPLIED PHYSICS, 1988, 64 (06) :3224-3228

[5] STRUCTURAL AND THERMODYNAMIC PROPERTIES OF HEAVILY MECHANICALLY DEFORMED RU AND AIRU [J].

HELLSTERN, E ;

FECHT, HJ ;

FU, Z ;

JOHNSON, WL .

JOURNAL OF APPLIED PHYSICS, 1989, 65 (01) :305-310

[6] PROGRESS OF THE AMORPHIZATION REACTION DURING MECHANICAL ALLOYING IN FE-ZR [J].

HELLSTERN, E ;

SCHULTZ, L .

JOURNAL OF APPLIED PHYSICS, 1988, 63 (05) :1408-1413

[7]

IQBAL Z, 1987, MRS S P, V99, P907

[8] STRUCTURAL AND SUPERCONDUCTING PROPERTIES OF ORTHORHOMBIC AND TETRAGONAL YBA2CU3O7-X - THE EFFECT OF OXYGEN STOICHIOMETRY AND ORDERING ON SUPERCONDUCTIVITY [J].

JORGENSEN, JD ;

VEAL, BW ;

KWOK, WK ;

CRABTREE, GW ;

UMEZAWA, A ;

NOWICKI, LJ ;

PAULIKAS, AP .

PHYSICAL REVIEW B, 1987, 36 (10) :5731-5734

[9] NEUTRON-DIFFRACTION STUDY ON ORTHORHOMBIC YBA2CU3O6.74 AND TETRAGONAL YBA2CU3O6.05 [J].

KAJITANI, T ;

OHISHI, K ;

KIKUCHI, M ;

SYONO, Y ;

HIRABAYASHI, M .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1987, 26 (07) :L1144-L1147

[10] PREPARATION OF AMORPHOUS NI60NB40 BY MECHANICAL ALLOYING [J].

KOCH, CC ;

CAVIN, OB ;

MCKAMEY, CG ;

SCARBROUGH, JO .

APPLIED PHYSICS LETTERS, 1983, 43 (11) :1017-1019