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| C P Zhang, X Chaud, H T Cao, E Beaugnon, and L Zhou. Effect of Specific Surface Area on Growth and Porosity of Oxide Superconducting Ceramic YBCO Single Domain. Key Engineering Materials. 2010, 434-435: 346-349 |
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ISTPÊÕ¼ÈçÏ£¬SCIδÊÕ¼ ISTP indexed FN ISI Export Format VR 1.0 PT S AU Zhang, CP Chaud, X Cao, HT Beaugnon, E Zhou, L AF Zhang, C. P. Chaud, X. Cao, H. T. Beaugnon, E. Zhou, L. ED Pan, W; Gong, J TI Effect of Specific Surface Area on Growth and Porosity of Oxide Superconducting Ceramic YBCO Single Domain SO HIGH-PERFORMANCE CERAMICS VI SE Key Engineering Materials LA English DT Proceedings Paper CT 6th China International Conference on High-Performance Ceramics (CICC-6) CY AUG 16-19, 2009 CL Harbin, PEOPLES R CHINA SP Chinese Ceram Soc, Harbin Inst Technol, Ctr Composite Mat, Tsinghua Univ, State Key Lab New Ceram & Fine Processing, Chinese Ceram Soc, Adv Ceram Div DE Superconductor YBCO; Specific surface area; Growth; Porosity ID ARTIFICIAL HOLES; BULKS; FABRICATION; CRYSTAL; SAMPLES AB The effect of specific surface area on the growth and the porosity of oxide ceramic superconductor YBCO single domain are investigated. The enhancement of growth depth depends on the large specific surface area sigma. When the specific surface area sigma is more than the critical value 200mm(2)/g, the YBCO single domain is full-growth in the sample of size Phi 20mmx 18mm. It reveals that a large specific surface area providing an effective tunnel of oxygen diffusion for the crystal growth. On the other hand, this tunnel makes oxygen gas emitting out resulting in porosity diameter decreased. The mean porosity diameter is observed as 5 mu m in hole sample smaller than 80 mu m in plain sample. The porosity distribution is calculated as 1/(100 mu m)(2) in plain sample and 8/(10 mu m)(2) in hole sample. C1 [Zhang, C. P.; Cao, H. T.; Zhou, L.] NW Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China. RP Zhang, CP, NW Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China. EM zhangcp6813@c-nin.com NR 12 TC 0 PU TRANS TECH PUBLICATIONS LTD PI STAFA-ZURICH PA LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND SN 1013-9826 J9 KEY ENG MAT PY 2010 VL 434-435 BP 346 EP 349 DI 10.4028/www.scientific.net/KEM.434-435.346 PG 4 SC Materials Science, Ceramics; Materials Science, Composites GA BPZ23 UT ISI:000280417300093 ER -------------------------------------------------------------------------------- EF |
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EiÊÕ¼ÈçÏ Accession number: 20103313147544 Title: Effect of specific surface area on growth and porosity of oxide superconducting ceramic YBCO single domain Authors: Zhang, C.P.1, 2, 4 ; Chaud, X.3 ; Cao, H.T.1 ; Beaugnon, E.3, 4 ; Zhou, L.1, 2 Author affiliation: 1 State Key Laboratory of Solidification Processing, Northwest Polytechnical University, Xi'an, 710072, China 2 Northwest Institute for Non-ferrous Metal Research, SMRC, Xi'an, 710016, China 3 CRETA/CNRS, BP166, Grenoble Cedex 9, 38042, France 4 Physical Material Dept., Universite Joseph Fourier, Grenoble, 38000, France Corresponding author: Zhang, C. P. (zhangcp6813@c-nin.com) Source title: Key Engineering Materials Abbreviated source title: Key Eng Mat Volume: 434-435 Monograph title: High-Performance Ceramics VI Issue date: 2010 Publication year: 2010 Pages: 346-349 Language: English ISSN: 10139826 CODEN: KEMAEY ISBN-10: 0878492747 ISBN-13: 9780878492749 Document type: Conference article (CA) Conference name: 6th China International Conference on High-Performance Ceramics, CICC-6 Conference date: August 16, 2009 - August 19, 2009 Conference location: Harbin, China Conference code: 81390 Sponsor: The Chinese Ceramic Society Publisher: Trans Tech Publications Ltd, Laubisrutistr.24, Stafa-Zuerich, CH-8712, Switzerland Abstract: The effect of specific surface area on the growth and the porosity of oxide ceramic superconductor YBCO single domain are investigated. The enhancement of growth depth depends on the large specific surface area ¦Ò. When the specific surface area ¦Ò is more than the critical value 200mm 2/g, the YBCO single domain is full-growth in the sample of size ¦µ20mm¡Á18mm. It reveals that a large specific surface area providing an effective tunnel of oxygen diffusion for the crystal growth. On the other hand, this tunnel makes oxygen gas emitting out resulting in porosity diameter decreased. The mean porosity diameter is observed as 5¦Ìm in hole sample smaller than 80¦Ìm in plain sample. The porosity distribution is calculated as 1/(100¦Ìm)2 in plain sample and 8/(10¦Ìm)2 in hole sample. © (2010) Trans Tech Publications. Number of references: 12 Main heading: Porosity Controlled terms: Ceramic superconductors - Grain boundaries - Oxygen - Specific surface area - Superconductivity - Yttrium barium copper oxides Uncontrolled terms: Critical value - Growth - Oxide ceramics - Oxygen diffusion - Oxygen gas - Porosity distributions - Single domains - Superconducting ceramics Classification code: 931.2 Physical Properties of Gases, Liquids and Solids - 812.1 Ceramics - 804.2 Inorganic Compounds - 804 Chemical Products Generally - 933.1 Crystalline Solids - 708.3.1 High Temperature Superconducting Materials - 701.1 Electricity: Basic Concepts and Phenomena - 531.2 Metallography - 423 Non Mechanical Properties and Tests of Building Materials - 708.3 Superconducting Materials DOI: 10.4028/www.scientific.net/KEM.434-435.346 Database: Compendex Compilation and indexing terms, © 2010 Elsevier Inc. |
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haitaoapple(½ð±Ò+5): 2010-12-16 09:06:17
haitaoapple(½ð±Ò+5): 2010-12-21 10:15:33
haitaoapple(½ð±Ò+5): 2010-12-21 10:15:33
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ÏÔʾ 1 Ìõ£¬¹² 1 Ìõ ×÷Õß: Zhang, CP (Zhang, C. P.); Chaud, X (Chaud, X.); Cao, HT (Cao, H. T.); Beaugnon, E (Beaugnon, E.); Zhou, L (Zhou, L.) ±àÕß: Pan, W; Gong, J ±êÌâ: Effect of Specific Surface Area on Growth and Porosity of Oxide Superconducting Ceramic YBCO Single Domain À´Ô´³ö°æÎï: HIGH-PERFORMANCE CERAMICS VI, 434-435: 346-349 2010 ´ÔÊé±êÌâ: Key Engineering Materials »áÒé±êÌâ: 6th China International Conference on High-Performance Ceramics (CICC-6) »áÒéÈÕÆÚ: AUG 16-19, 2009 »áÒ鵨µã: Harbin, PEOPLES R CHINA »áÒéÔÞÖúÉÌ: Chinese Ceram Soc.; Harbin Inst Technol, Ctr Composite Mat.; Tsinghua Univ, State Key Lab New Ceram & Fine Processing.; Chinese Ceram Soc, Adv Ceram Div. ×÷Õ߹ؼü´Ê: Superconductor YBCO; Specific surface area; Growth; Porosity KeyWords Plus: ARTIFICIAL HOLES; BULKS; FABRICATION; CRYSTAL; SAMPLES ÕªÒª: The effect of specific surface area on the growth and the porosity of oxide ceramic superconductor YBCO single domain are investigated. The enhancement of growth depth depends on the large specific surface area sigma. When the specific surface area sigma is more than the critical value 200mm(2)/g, the YBCO single domain is full-growth in the sample of size Phi 20mmx 18mm. It reveals that a large specific surface area providing an effective tunnel of oxygen diffusion for the crystal growth. On the other hand, this tunnel makes oxygen gas emitting out resulting in porosity diameter decreased. The mean porosity diameter is observed as 5 mu m in hole sample smaller than 80 mu m in plain sample. The porosity distribution is calculated as 1/(100 mu m)(2) in plain sample and 8/(10 mu m)(2) in hole sample. µØÖ·: [Zhang, C. P.; Cao, H. T.; Zhou, L.] NW Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China ͨѶ×÷ÕßµØÖ·: Zhang, CP, NW Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China. µç×ÓÓÊÏ䵨ַ: zhangcp6813@c-nin.com ÒýÓõIJο¼ÎÄÏ×Êý: 12 ±»ÒýƵ´Î: 0 ³ö°æÉÌ: TRANS TECH PUBLICATIONS LTD ³ö°æÉ̵ØÖ·: LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND ISSN: 1013-9826 DOI: 10.4028/www.scientific.net/KEM.434-435.346 29 ×Ö·ûµÄÀ´Ô´³ö°æÎïÃû³ÆËõд: KEY ENG MAT À´Ô´ÎÄÏ×Ò³Âë¼ÆÊý: 4 ISI ÎÄÏ×´«µÝºÅ: BPZ23 |

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