JPH02204328A - Superconducting material composition - Google Patents
Superconducting material compositionInfo
- Publication number
- JPH02204328A JPH02204328A JP1022856A JP2285689A JPH02204328A JP H02204328 A JPH02204328 A JP H02204328A JP 1022856 A JP1022856 A JP 1022856A JP 2285689 A JP2285689 A JP 2285689A JP H02204328 A JPH02204328 A JP H02204328A
- Authority
- JP
- Japan
- Prior art keywords
- superconducting material
- material composition
- present
- temperature
- temp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 title claims abstract description 7
- 239000010949 copper Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052788 barium Inorganic materials 0.000 claims description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical group [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 229910052727 yttrium Inorganic materials 0.000 claims description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical group [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 1
- 229910052726 zirconium Inorganic materials 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 6
- 238000003746 solid phase reaction Methods 0.000 abstract description 2
- 230000002194 synthesizing effect Effects 0.000 abstract description 2
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 abstract 2
- 229910002480 Cu-O Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、酸化物高温超伝導材料組成物に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to oxide high temperature superconducting material compositions.
（従来の技術）
従来、酸化物超伝導材料としては、１ａ−３ａ−Ｃｕ−
０系、Ｌａ−８ｒ−Ｃｕ−０系、１ａ−ｃａ−ｃｕ−Ｑ
系、Ｙ−Ｂａ−Ｃｕ−０系、Ｙ−ｓｒ−ｃｕ−Ｑ系、Ｙ
−Ｃａ−Ｃｕ−Ｑ系等が知られている。(Prior art) Conventionally, 1a-3a-Cu-
0 series, La-8r-Cu-0 series, 1a-ca-cu-Q
system, Y-Ba-Cu-0 system, Y-sr-cu-Q system, Y
-Ca-Cu-Q systems and the like are known.
最近、液体窒素温度で使用できる超伝導材料として、Ｂ
１−８ｒ−Ｃａ−Ｃｕ−０系、１３ｉ−Ｐｂ−３ｒ−
Ｃａ−Ｃｕ−Ｑ系、Ｔｌ−Ｂａ−Ｃａ−Ｃｕ−０系等が
開発されている。Recently, B
1-8r-Ca-Cu-0 system, 13i-Pb-3r-
Ca-Cu-Q system, Tl-Ba-Ca-Cu-0 system, etc. have been developed.
（解決しようとする問題点）
本発明は、液体窒素温度で使用できる新規な高温超伝導
材料を提供しようとするものである。(Problems to be Solved) The present invention seeks to provide a novel high temperature superconducting material that can be used at liquid nitrogen temperatures.
く問題を解決するための手段）
本発明は、Ｙ−Ｚｒ−Ｂａ−Ｃｕ−０系の組成物を合成
することによって目的を達成することができる。Means for Solving the Problems) The objects of the present invention can be achieved by synthesizing a Y-Zr-Ba-Cu-0 based composition.
すなわち、本発明は、Ｙｌ−αＺｒαＢａβＣＬＪγＯ
δなる化学式において、Ｙはイツトリウム、Ｚｒはジル
コニラ、１３ａはバリウム、Ｃｕは銅、Ｏは酸素を表わ
し、かつα、β、γ、δは原子比でα〈０，７．２くβ
く４．３くγ〈６、δ〈１０なる新規な超伝導材料組成
物であり、実施例にも示すように液体窒素温度よりも高
い温度で超伝導状態を実現できるものである。That is, the present invention provides Yl-αZrαBaβCLJγO
In the chemical formula δ, Y represents yttrium, Zr represents zirconyl, 13a represents barium, Cu represents copper, O represents oxygen, and α, β, γ, δ are α<0, 7.2 β in atomic ratio.
This is a novel superconducting material composition in which γ<6 and δ<10, and as shown in the Examples, it can achieve a superconducting state at a temperature higher than the liquid nitrogen temperature.
本発明になる組成物の製造法の一例を示すと、（ン
酸化イツトリウム、酸化ジルコニラ、炭酸バリウム及び
酸化銅を所定量混合し、９００〜１０００℃程度の温度
で固相反応を行なう酸化物混合焼成法である。An example of the method for producing the composition of the present invention is (oxide mixture in which predetermined amounts of yttrium oxide, zirconia oxide, barium carbonate, and copper oxide are mixed and a solid phase reaction is performed at a temperature of about 900 to 1000°C). This is a firing method.
その他、共沈法、均一沈澱法、塩分解法等も用いること
ができる。In addition, a coprecipitation method, a homogeneous precipitation method, a salt decomposition method, etc. can also be used.
また、本発明になる膜を形成する場合には、ＣＶＤ法、
スパッタリング法、蒸着法、浸漬引き上げ法等を用いる
ことができる。In addition, when forming the film according to the present invention, CVD method,
A sputtering method, a vapor deposition method, an immersion pulling method, etc. can be used.
（実施例）
Ｙ２０３７．５１（７、ＺｒＯ２８，２０（７゜ＢａＣ
Ｏ３５２，５３Ｑ、Ｃｕ０３１．７６ＣＪを秤量し、ボ
ールミルを用いて５時間混合したのち成形圧１ｔ、／Ｃ
ｍ２でプレスして成形体を作成した。この成形体を電気
炉を用いて９５０℃まで４時間で昇温後、その温度で１
０時間焼成した。(Example) Y2037.51 (7, ZrO28,20 (7゜BaC
O352,53Q and Cu031.76CJ were weighed and mixed using a ball mill for 5 hours, then molding pressure was 1t, /C.
A molded body was created by pressing at m2. This molded body was heated to 950°C in 4 hours using an electric furnace, and then heated for 1 hour at that temperature.
It was baked for 0 hours.
放冷後、粉砕して再度成形圧ｉｔ／’Ｃｍ２でプレスし
て成形体を作成し、９５０℃で１０時間焼成した。After cooling, it was crushed and pressed again at a molding pressure of it/'Cm2 to produce a molded body, which was then fired at 950°C for 10 hours.
この焼成品を四端子法で抵抗測定したところ、９１にで
完全に抵抗がＯになった。When the resistance of this fired product was measured using the four-terminal method, the resistance was completely O at 91.
また、この焼成品は液体窒素で冷却することによって良
好なマイスナー効果を示した。Furthermore, this fired product showed good Meissner effect when cooled with liquid nitrogen.
（発明の効果）
本発明によれば、液体窒素温度よりも高い温度で超伝導
状態を実現できる新規な高温超伝導材料が得られる特徴
がある。(Effects of the Invention) According to the present invention, a novel high-temperature superconducting material that can realize a superconducting state at a temperature higher than the liquid nitrogen temperature is obtained.
また、本発明になる組成物の躾も同様に液体窒素温度よ
りも高い温度で超伝導状態を実現できる特徴がある。Furthermore, the composition of the present invention also has the characteristic of being able to achieve a superconducting state at a temperature higher than the liquid nitrogen temperature.
Claims (1)
化学式において、Ｙはイットリウム、Ｚｒはジルコニウ
ム、Ｂａはバリウム、Ｃｕは銅、Ｏは酸素を表わし、か
つα、β、γ、βは原子比でα＜０．７、２＜β＜４、
３＜γ＜６、δ＜１０であることを特徴とする超伝導材
料組成物。In the chemical formula Y_1_-_αZr_αBa_βCu_γO_δ, Y represents yttrium, Zr represents zirconium, Ba represents barium, Cu represents copper, and O represents oxygen, and α, β, γ, and β are α<0.7 and 2<β in atomic ratio. <4,
A superconducting material composition characterized in that 3<γ<6 and δ<10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1022856A JPH02204328A (en) | 1989-02-01 | 1989-02-01 | Superconducting material composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1022856A JPH02204328A (en) | 1989-02-01 | 1989-02-01 | Superconducting material composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02204328A true JPH02204328A (en) | 1990-08-14 |
Family
ID=12094361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1022856A Pending JPH02204328A (en) | 1989-02-01 | 1989-02-01 | Superconducting material composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02204328A (en) |
-
1989
- 1989-02-01 JP JP1022856A patent/JPH02204328A/en active Pending
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