Morphology and etching studies on YBCO and CuO single crystals

被引：19

作者：

Prabhakaran, D ^{[1
]}

Subramanian, C

Balakumar, S

Ramasamy, P

机构：

[1] Anna Univ, Ctr Crystal Growth, Madras 600025, Tamil Nadu, India

[2] Natl Univ Singapore, Dept Chem Engn, Singapore 117548, Singapore

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1999年 / 319卷 / 1-2期

关键词：

YBCO-CuO crystals; BaO-CuO flux; slow cooling method;

D O I：

10.1016/S0921-4534(99)00274-9

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Single crystals of YBCO (Y123) and CuO have been grown from a BaO-CuO (28:72) flux using a low axial gradient furnace (similar to 1 degrees C/cm), Growth morphology of the grown crystals was studied using an optical microscope, scanning electron microscopy and atomic force microscopy. Cell parameter values and chemical composition of the grown crystals were determined from the X-ray diffraction data and inductively coupled plasma analysis, respectively. Etching studies were done for both the crystals using different etchants. Oxygen stoichiometry of the YBCO crystal was determined by iodometry titration analysis. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：99 / 103

页数：5

共 13 条

[1] CALCULATED X-RAY-POWDER DIFFRACTION PATTERNS AND THEORETICAL DENSITIES FOR PHASES ENCOUNTERED IN INVESTIGATIONS OF Y-BA-CU-O SUPERCONDUCTORS [J].

BELL, AMT .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1990, 3 (02) :55-61

[2] MAGNETICALLY MELT TEXTURED YBA2CU3O7-DELTA - DISAGREEMENT BETWEEN JC DETERMINED BY MAGNETIC AND DIRECT TRANSPORT MEASUREMENTS [J].

BOURGAULT, D ;

DERANGO, P ;

BARBUT, JM ;

BRAITHWAITE, D ;

LEES, MR ;

LEJAY, P ;

SULPICE, A ;

TOURNIER, R .

PHYSICA C, 1992, 194 (1-2) :171-176

[3] MICROSCOPIC STUDIES OF YBCO SINGLE-CRYSTALS [J].

DRAKE, A ;

AINDOW, M ;

RAND, M ;

ABELL, JS .

JOURNAL OF CRYSTAL GROWTH, 1993, 128 (1-4) :762-766

[4] GROWTH OF BULK YBA2CU3O7-DELTA SINGLE-CRYSTALS AND THEIR PROPERTIES [J].

EMELCHENKO, GA ;

ZHOKHOV, AA ;

NAUMENKO, IG ;

BARANOVA, GK ;

ZVERKOV, SA ;

KARTSOVNIK, MJ ;

KOVALEV, AE ;

LOGVENOV, GJ ;

PRONINA, LN ;

KHASANOV, SS .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1994, 7 (08) :541-550

[5] GROWTH OF LARGE-SIZE TWIN FREE YBA2CU3O7-DELTA SINGLE-CRYSTALS BY A TEMPERATURE-GRADIENT TECHNIQUE [J].

JAYAVEL, R ;

THAMIZHAVEL, A ;

MURUGAKOOTHAN, P ;

RAO, CRV ;

SUBRAMANIAN, C ;

RAMASAMY, P .

JOURNAL OF CRYSTAL GROWTH, 1994, 137 (1-2) :273-277

[6] SOLIDIFICATION CHARACTERISTICS OF TEXTURED 123-PHASE IN YBCO BY LASER FLOATING-ZONE LEVELING (LFZL) METHOD [J].

JIANG, M ;

HUANG, JG ;

WANG, YZ ;

ZHANG, C ;

ZENG, DC ;

WANG, X ;

QIAO, GW .

JOURNAL OF CRYSTAL GROWTH, 1993, 130 (3-4) :389-393

[7] RELATIONSHIP BETWEEN STOICHIOMETRY AND PHYSICAL-PROPERTIES OF R(123)-TYPE (R=Y, RE) SINGLE-CRYSTALS [J].

LEONYUK, L ;

BABONAS, GJ ;

VETKIN, A .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1994, 7 (08) :573-578

[8] ETCH DEFECTS IN YBA2CU3O7-DELTA SINGLE-CRYSTALS GROWN FROM FLUX [J].

LIN, CT ;

LIANG, WY .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1994, 225 (3-4) :275-286

[9] SCREW DISLOCATIONS OF YBA2CU3O7-DELTA SINGLE-CRYSTAL REVEALED BY CHEMICAL ETCHING [J].

LIN, CT .

JOURNAL OF CRYSTAL GROWTH, 1994, 143 (1-2) :110-114

[10] High critical transport currents of melt textured YBCO up to 6000 A [J].

Porcar, L ;

Bourgault, D ;

Barbut, JM ;

Barrault, M ;

Germi, P ;

Tournier, R .

PHYSICA C, 1997, 275 (3-4) :293-298

← 1 2 →