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Article: An optimum heating program for fabricating MTG Bi1.6Pb0.4Sr2Ca2Cu3Oy superconductors
Title | An optimum heating program for fabricating MTG Bi1.6Pb0.4Sr2Ca2Cu3Oy superconductors |
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Authors | |
Keywords | Crystallographic structure Superconductors Melt textured growth |
Issue Date | 1994 |
Publisher | Materials Research Society. The Journal's web site is located at http://www.mrs.org/publications/jmr |
Citation | Journal of Materials Research, 1994, v. 9 n. 9, p. 2231-2237 How to Cite? |
Abstract | Following our recent report on the successful fabrication of “stationary” MTG Bi1.6Pb0.4Sr2Ca2Cu3Oy pellets in a simple tube furnace, we have tried many heating programs with various “crystal growth starting temperatures”, Ts, and sintering temperatures, Te; the samples are sintered for 20–40 h before quenching in air. It is found that Ts-Te should be rather narrow to produce good MTG samples, and the typical value of Jc is enhanced from 100 A cm22 (for a polycrystalline sample) to about
3 3 103 A cm22 for our good ones. SEM and TEM results indicate that the samples are full of packs which contain highly oriented mica-like layers. |
Persistent Identifier | http://hdl.handle.net/10722/42441 |
ISSN | 2023 Impact Factor: 2.7 2023 SCImago Journal Rankings: 0.569 |
DC Field | Value | Language |
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dc.contributor.author | Du, ZL | en_HK |
dc.contributor.author | Yu, TF | en_HK |
dc.contributor.author | Chow, JCL | en_HK |
dc.contributor.author | Fung, PCW | en_HK |
dc.date.accessioned | 2007-01-29T08:50:07Z | - |
dc.date.available | 2007-01-29T08:50:07Z | - |
dc.date.issued | 1994 | en_HK |
dc.identifier.citation | Journal of Materials Research, 1994, v. 9 n. 9, p. 2231-2237 | en_HK |
dc.identifier.issn | 0884-2914 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/42441 | - |
dc.description.abstract | Following our recent report on the successful fabrication of “stationary” MTG Bi1.6Pb0.4Sr2Ca2Cu3Oy pellets in a simple tube furnace, we have tried many heating programs with various “crystal growth starting temperatures”, Ts, and sintering temperatures, Te; the samples are sintered for 20–40 h before quenching in air. It is found that Ts-Te should be rather narrow to produce good MTG samples, and the typical value of Jc is enhanced from 100 A cm22 (for a polycrystalline sample) to about 3 3 103 A cm22 for our good ones. SEM and TEM results indicate that the samples are full of packs which contain highly oriented mica-like layers. | en_HK |
dc.format.extent | 861073 bytes | - |
dc.format.extent | 26624 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.format.mimetype | application/msword | - |
dc.language | eng | en_HK |
dc.publisher | Materials Research Society. The Journal's web site is located at http://www.mrs.org/publications/jmr | en_HK |
dc.rights | Journal of Materials Research. Copyright © Materials Research Society. | en_HK |
dc.subject | Crystallographic structure | en_HK |
dc.subject | Superconductors | en_HK |
dc.subject | Melt textured growth | en_HK |
dc.title | An optimum heating program for fabricating MTG Bi1.6Pb0.4Sr2Ca2Cu3Oy superconductors | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0884-2914&volume=9&issue=9&spage=2231&epage=2237&date=1994&atitle=An+optimum+heating+program+for+fabricating+MTG+Bi1.6Pb0.4Sr2Ca2Cu3Oy+superconductors | en_HK |
dc.description.nature | published_or_final_version | en_HK |
dc.identifier.hkuros | 3413 | - |
dc.identifier.issnl | 0884-1616 | - |