KR890017199A - 이트륨-알칼리토류-비스무트-구리산화물을 포함하는 조성물 및 제조방법 - Google Patents
이트륨-알칼리토류-비스무트-구리산화물을 포함하는 조성물 및 제조방법 Download PDFInfo
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- KR890017199A KR890017199A KR1019890006295A KR890006295A KR890017199A KR 890017199 A KR890017199 A KR 890017199A KR 1019890006295 A KR1019890006295 A KR 1019890006295A KR 890006295 A KR890006295 A KR 890006295A KR 890017199 A KR890017199 A KR 890017199A
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- superconducting
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- 238000000034 method Methods 0.000 title claims description 7
- 239000000203 mixture Substances 0.000 title claims 5
- 239000005751 Copper oxide Substances 0.000 title 1
- 229910000431 copper oxide Inorganic materials 0.000 title 1
- 229910004247 CaCu Inorganic materials 0.000 claims description 3
- 229910052788 barium Inorganic materials 0.000 claims 7
- 229910052727 yttrium Inorganic materials 0.000 claims 7
- 229910052751 metal Inorganic materials 0.000 claims 6
- 239000002184 metal Substances 0.000 claims 6
- 229910052797 bismuth Inorganic materials 0.000 claims 5
- 229910052791 calcium Inorganic materials 0.000 claims 5
- 229910052802 copper Inorganic materials 0.000 claims 5
- 229910052712 strontium Inorganic materials 0.000 claims 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 3
- 239000004065 semiconductor Substances 0.000 claims 3
- 230000007704 transition Effects 0.000 claims 3
- 238000001354 calcination Methods 0.000 claims 2
- 230000001747 exhibiting effect Effects 0.000 claims 2
- 239000002887 superconductor Substances 0.000 claims 2
- 229910002651 NO3 Inorganic materials 0.000 claims 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims 1
- 235000012501 ammonium carbonate Nutrition 0.000 claims 1
- 239000001099 ammonium carbonate Substances 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 claims 1
- 229910052790 beryllium Inorganic materials 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 229910052749 magnesium Inorganic materials 0.000 claims 1
- 229910052758 niobium Inorganic materials 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 125000001453 quaternary ammonium group Chemical group 0.000 claims 1
- 150000002910 rare earth metals Chemical group 0.000 claims 1
- 239000000376 reactant Substances 0.000 claims 1
- 229910052706 scandium Inorganic materials 0.000 claims 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 claims 1
- 239000000243 solution Substances 0.000 claims 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims 1
- 239000002131 composite material Substances 0.000 description 3
- 238000000634 powder X-ray diffraction Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Y10S505/00—Superconductor technology: apparatus, material, process
- Y10S505/725—Process of making or treating high tc, above 30 k, superconducting shaped material, article, or device
- Y10S505/737—From inorganic salt precursors, e.g. nitrates
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Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는 “복합물(composite)” 기법에의해 제조된(YBa2Cu3)(1-x)(Bi2Sr2CaCu2)xOy에 있어서 0 내지 0.429의 x증가분에 대한 X - 선 분말 회절 무늬를 도시한 것임. 제 2 도는 문헌에 보고된 Cd3Bi10O18의 무늬에 비교한 “x=0.429복합물 시료에 대한 x - 선 분말 회절 무늬를 도시한 것임. 제 3도는 “공침 카보네이트” 기법에 의해 제조된 물질에 대한 X - 선 분말 회절 무늬를 도시한 것임. 제 4 도는 “복합물”기법에 의해 제조된 x=0.158시료에 대한 저항 대온곡선을 도시한 것임. 제 5 도는 “복합물 ”및 “공침”기법에 의해 제조된 x=0.429 시료에 대한 저항 대 온도 곡선을 도시한 것임. 제6A 내지 6D도는 특정한 본 발명 생성물의 파쇄면의 전자 현미경 사진 및 원소 지도를 도시한 것임.
Claims (8)
- a = 0.55Å의 면심 입방 상으로서 약 120°K에서 반도체에서 금속으로의 전이가 일어나는, Y,Bi 및 Ba의 산화물을 포함하는 조성물.
- 제 1 항의 조성물 약 60중량%, 및 상호 연결 상으로서 YBa2Cu3의 초전도성 산화물 약 40중량%로 구성된 조성물.
- 적어도 2개의 초전도체를 함께 반응시켜 비초전도성 성분을 함유하는 초전도성 생성물을 형성시키는 방법.
- 제 3항에 있어서, 적어도 1개의 초전도체 반응물이 L- M - A를 함유하는 산화물로서, 이때 L은 스칸듐 및 이트륨을 포함하는 희토류기 및 Bi를 포함하는 적어도 1개의 3가 금속이고 ; M은 Ba,Be,Mg,Ca 및 Sr을 포함하여 적어도 1개의 2가 금속이며 ; A는 Nb,Cu,Ag 및 Au를 포함하여 적어도 1개의 다가 금속인 방법.
- (A) Bi,Sr,Ca,Y,Ba 및 Cu의 질산염 수용액을 화학양론적 당량의 4급 암모늄 카보네이트 용액과 반응시켜 Bi,Sr,Ca,Y,Ba 및 Cu의 카보네이트 공침물을 형성시키고 과량의 YBa2Cu3를 제공하며 ; (B) 카보네이트를 회수 및 건조시키고 ; 또 (C) 건조된 카보네이트를 하소시켜, a=8.55Å의 면심 입방 상에 Y,Bi, 및 Ba의 산화물을 함유하고 또 약 120°K에서 반도체에서 금속으로 전이가 나타나며 또 상호 연결상으로서 YBa2Cu3의 초전도성 산화물을 함유하는 조성물을 형성시키는 것을 포함하는 Bi,Sr,Ca,Y,Ba 및 Cu의 초전도성 산화물의 제조방법.
- 주로 하기 성분들로 구성된 초전도성 생성물을 형성시키기 위해 초전도성 사방정계 YBa2Cu3산화물을 초전도성 Bi2,Sr2,CaCu2산화물과 반응시키는 것을 포함하는 방법 : (I) a=8.55Å의 면심 입방 상을 가지며, 흔적량의 Sr,Ca 및 Cu와 함께 Y,Bi 및 Ba의 산화물을 함유하고 또 약 120°K에서 반도체에서 금속으로의 전이가 나타나는 비초전도성 화합물 ; 및 (II)생성물 전체에 걸쳐 상호 연결된 상으로서 정방정계 초전도성 YBa2Cu3.
- 제 6 항에 있어서, X = 0.2인 (YBa2Cu3)(1-X)(Bi2Sr2CaCu|2)x의 반응물비를 이용하고 그에 따라 완성된 제품 I이 약 60중량%이고, 또 II가 약 40중량% 존재하는 방법.
- 제 3 항, 제 4 항, 제 5 항, 제 6 항 또는 제 7 항에 있어서, 하소가 약 950℃에서 수행되는 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/194,058 US5028585A (en) | 1988-02-12 | 1988-05-13 | Superconducting oxide FCC oxide composite compositions and method of making such compositions |
| US194058 | 1988-05-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR890017199A true KR890017199A (ko) | 1989-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019890006295A KR890017199A (ko) | 1988-05-13 | 1989-05-11 | 이트륨-알칼리토류-비스무트-구리산화물을 포함하는 조성물 및 제조방법 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5028585A (ko) |
| EP (1) | EP0343455A3 (ko) |
| JP (1) | JPH0280323A (ko) |
| KR (1) | KR890017199A (ko) |
| CN (1) | CN1037796A (ko) |
| AU (1) | AU3470889A (ko) |
| BR (1) | BR8902211A (ko) |
| ZA (1) | ZA893123B (ko) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5523270A (en) * | 1987-07-06 | 1996-06-04 | Lanxide Technology Company, Lp | Complex perovskite oxidation reaction products |
| US4880771A (en) * | 1988-02-12 | 1989-11-14 | American Telephone And Telegraph Company, At&T Bell Laboratories | Bismuth-lead-strontium-calcium-cuprate superconductors |
| JP2636049B2 (ja) * | 1988-08-29 | 1997-07-30 | 住友電気工業株式会社 | 酸化物超電導体の製造方法および酸化物超電導線材の製造方法 |
| EP0430568B1 (en) * | 1989-11-28 | 1997-09-03 | AT&T Corp. | Method of making high Tc superconductor material, and article produced by the method |
| GB9008753D0 (en) * | 1990-04-19 | 1990-06-13 | Lynxvale Ltd | Superconductors |
| JPH06219736A (ja) * | 1993-01-27 | 1994-08-09 | Hitachi Ltd | 超電導体 |
| US5342825A (en) * | 1993-07-16 | 1994-08-30 | The United States Of America As Represented By The Secretary Of The Air Force | Passive superconducting bearing system |
| US6209190B1 (en) * | 1996-05-03 | 2001-04-03 | The Korea Institute Of Machinery & Materials | Production of MgO dispersed Bi-2223 superconductor |
| US6344287B1 (en) * | 1997-04-14 | 2002-02-05 | Florida State University | High temperature compatible insulation for superconductors and method of applying insulation to superconductors |
| US9184060B1 (en) | 2014-11-14 | 2015-11-10 | Lam Research Corporation | Plated metal hard mask for vertical NAND hole etch |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0284061A3 (en) * | 1987-03-24 | 1989-08-16 | Sumitomo Electric Industries Limited | Ceramic oxide superconductive composite material |
| CA1339978C (en) * | 1987-03-24 | 1998-08-04 | Sumitomo Electric Industries, Ltd. | Ceramic oxide superconductive composite material |
| AU610237B2 (en) * | 1987-09-11 | 1991-05-16 | W.R. Grace & Co.-Conn. | Manufacturing method for superconducting ceramics |
| US4880771A (en) * | 1988-02-12 | 1989-11-14 | American Telephone And Telegraph Company, At&T Bell Laboratories | Bismuth-lead-strontium-calcium-cuprate superconductors |
| US4894361A (en) * | 1988-08-10 | 1990-01-16 | E. I. Du Pont De Nemours And Company | Superconducting metal oxide Tl-Pb-Ca-Sr-O compositions and processes for manufacture and use |
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1988
- 1988-05-13 US US07/194,058 patent/US5028585A/en not_active Expired - Fee Related
-
1989
- 1989-04-27 ZA ZA893123A patent/ZA893123B/xx unknown
- 1989-05-11 AU AU34708/89A patent/AU3470889A/en not_active Abandoned
- 1989-05-11 BR BR898902211A patent/BR8902211A/pt unknown
- 1989-05-11 JP JP1116226A patent/JPH0280323A/ja active Pending
- 1989-05-11 KR KR1019890006295A patent/KR890017199A/ko not_active Application Discontinuation
- 1989-05-12 EP EP19890108587 patent/EP0343455A3/en not_active Withdrawn
- 1989-05-13 CN CN89103302A patent/CN1037796A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ZA893123B (en) | 1989-12-27 |
| JPH0280323A (ja) | 1990-03-20 |
| BR8902211A (pt) | 1990-01-02 |
| EP0343455A2 (en) | 1989-11-29 |
| CN1037796A (zh) | 1989-12-06 |
| AU3470889A (en) | 1989-11-16 |
| US5028585A (en) | 1991-07-02 |
| EP0343455A3 (en) | 1990-10-17 |
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| WITN | Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid |