JPH01133941A - Compound superconductor - Google Patents
Compound superconductorInfo
- Publication number
- JPH01133941A JPH01133941A JP62291635A JP29163587A JPH01133941A JP H01133941 A JPH01133941 A JP H01133941A JP 62291635 A JP62291635 A JP 62291635A JP 29163587 A JP29163587 A JP 29163587A JP H01133941 A JPH01133941 A JP H01133941A
- Authority
- JP
- Japan
- Prior art keywords
- superconductor
- temperature
- compd
- liq
- uranium
- 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
- 239000002887 superconductor Substances 0.000 title claims abstract description 36
- 150000001875 compounds Chemical class 0.000 title claims description 10
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 229910009203 Y-Ba-Cu-O Inorganic materials 0.000 claims abstract 2
- 229910052770 Uranium Inorganic materials 0.000 claims description 6
- 229910052788 barium Inorganic materials 0.000 claims description 4
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 3
- DNYWZCXLKNTFFI-UHFFFAOYSA-N uranium Chemical compound [U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U] DNYWZCXLKNTFFI-UHFFFAOYSA-N 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 4
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 4
- 239000000843 powder Substances 0.000 abstract description 4
- QPLDLSVMHZLSFG-UHFFFAOYSA-N CuO Inorganic materials [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 abstract 1
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 229910000442 triuranium octoxide Inorganic materials 0.000 abstract 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 10
- 239000007788 liquid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003758 nuclear fuel Substances 0.000 description 4
- 229910052778 Plutonium Inorganic materials 0.000 description 3
- 229910052768 actinide Inorganic materials 0.000 description 3
- 150000001255 actinides Chemical class 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- OYEHPCDNVJXUIW-UHFFFAOYSA-N plutonium atom Chemical compound [Pu] OYEHPCDNVJXUIW-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
- 239000003574 free electron Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000005372 isotope separation Methods 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 230000000630 rising effect Effects 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
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〕
本発明は超伝導体に係わり、特にウラン・プルトニウム
等の元素を分離する磁気分離技術、レーザへの応用、劣
化ウランの有効利用等多様な利用を図ることが可能な化
合物超伝導体に関するものである。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to superconductors, and in particular, to various applications such as magnetic separation technology for separating elements such as uranium and plutonium, application to lasers, and effective use of depleted uranium. It relates to compound superconductors that can be utilized.
一般に、超伝導体は強磁場発生装置として各種の分野で
利用されているが、近年、益々その開発が盛んであり、
超伝導特性を示す臨界の温度も徐々に上昇しつつある。Generally, superconductors are used in various fields as strong magnetic field generators, but in recent years, their development has become more and more popular.
The critical temperature that exhibits superconducting properties is also gradually rising.
このような超伝導体としてＹ−Ｂａ−Ｃｕ−０系の超伝
導体が知られており、臨界温度−１９０℃程度が達成さ
れていることが報告されている。As such a superconductor, a Y-Ba-Cu-0 based superconductor is known, and it has been reported that a critical temperature of about -190°C has been achieved.
（発明が解決すべき問題点〕
ところで、従来の超伝導体は液体ヘリウムで電気抵抗が
０になる極低温まで冷却して利用しているが、その温度
管理には相当の設備と経費を要し、少しでも高い温度で
超伝導状態が得られることが利用の際の最も重要な因子
となっている。その点、Ｙ−Ｂａ−Ｃｕ−０系の超伝導
体は臨界温度が比較的高温であるため注目されているが
、さらに臨界温度を高温にすることか望まれていた。(Problems to be solved by the invention) Conventional superconductors are used by cooling them with liquid helium to an extremely low temperature where the electrical resistance becomes zero, but temperature control requires considerable equipment and expense. However, the most important factor for utilization is that a superconducting state can be obtained at as high a temperature as possible.In this regard, the critical temperature of Y-Ba-Cu-0-based superconductors is relatively high. This has attracted attention, but it has been desired to raise the critical temperature even higher.
本発明は上記問題点を解決するためのもので、従来のも
のに比して臨界温度を高くし、液体窒素温度領域での利
用が可能であると共に、劣化ウランの利用を図ることが
可能な化合物超伝導体を提供することを目的とする。The present invention is intended to solve the above-mentioned problems, and has a higher critical temperature than conventional ones, making it possible to use it in the liquid nitrogen temperature range and making it possible to use depleted uranium. The purpose is to provide compound superconductors.
そのために本発明の化合物超伝導体はＹ−Ｂａ−Ｃｕ〜
０系酸化物超伝導体において、バリウムの一部をウラン
で置換したことを特徴とする。For this purpose, the compound superconductor of the present invention is Y-Ba-Cu~
A 0-based oxide superconductor is characterized in that a portion of barium is replaced with uranium.
本発明の化合物超伝導体は、現在一般に認められる高温
超伝導体の組成Ａ Ｂ Ｏｚ型の酸化物超伝導体のＹＩ
Ｂａｇ Ｃｕｘ ０ｔ−１のＡサイト元素Ｂａ （バリ
ウム）の一部を電子数の多いアクチニド元素、例えばＵ
（ウラン）で置換し、自由電子密度を上げることにより
元のＹＩ Ｂ ａ ｚ Ｃｕｓ Ｏ？−８組成のものよ
り、臨界温度Ｔｃが高く、マイスナー効果の強い、液体
窒素温度領域において超伝導特性を示す超伝導体が得ら
れた。この臨界温度の上昇により実利用の際の安全係数
の増大、さらには経済性を向上させることができ、また
、劣化ウランの利用を図ることができる。The compound superconductor of the present invention has the composition A of the currently generally recognized high temperature superconductor, YI of the Oz-type oxide superconductor,
A part of the A site element Ba (barium) of Bag Cux 0t-1 is replaced with an actinide element with a large number of electrons, such as U.
(uranium) and increase the free electron density to change the original YI B az Cus O? A superconductor was obtained that had a higher critical temperature Tc than that of the -8 composition, had a stronger Meissner effect, and exhibited superconducting properties in the liquid nitrogen temperature range. This increase in critical temperature can increase the safety factor during practical use, improve economic efficiency, and make it possible to utilize depleted uranium.
以下、実施例を図面を参照して説明する。 Examples will be described below with reference to the drawings.
第１図は本発明の化合物超伝導体の製造工程を示す図で
ある。FIG. 1 is a diagram showing the manufacturing process of the compound superconductor of the present invention.
まず、Ｙ２Ｏ１＋ＢａＣＯ３トＣｕ Ｏ＋ Ｏｘ ０８
の粉末を秤量し、乳鉢に入れて粉末混合する（工程■、
■）。次に、９１０〜９４０℃で２時間程予備仮焼し、
再び乳鉢で粉砕、混合して粉末とする（工程■〜■）。First, Y2O1+BaCO3 Cu O+ Ox 08
Weigh the powder, put it in a mortar and mix the powder (Step ■,
■). Next, pre-calcining at 910-940℃ for about 2 hours,
Grind again in a mortar and mix to form a powder (Steps ■ to ■).
次に液体、例えばエタノールを加えてｌ ｃｄ当たり約
１ｔの圧力でプレス成形し、９１０〜９４０℃で５〜１
０時間、空気中で本焼成する（工程■、■）。その後、
４００〜５００”Ｃまで、最低１０時間かけて徐冷する
（工程■）。次に、４００〜５００℃で約３時間保持し
てアニールしく工程■）、その後約２０°Ｃまで徐冷し
く工程（ＩＤ） 、Ｙ Ｂ ａ ｌ−ｙ Ｃｕ ３ Ｕ
ｙ Ｏ１１焼結体が得られた（工程■）。Next, a liquid such as ethanol is added and press-molded at a pressure of about 1 ton per 1 cd, and 5 to 1
Main firing is performed in air for 0 hours (steps ①, ②). after that,
Slowly cool to 400-500"C over at least 10 hours (Step 2). Next, keep at 400-500"C for about 3 hours to anneal (Step 2), then slowly cool to about 20°C. (ID) ,YBalyCu3U
A y O11 sintered body was obtained (step ■).
第２図は本発明による超伝導体の一実施例として組成比
をＹ（Ｂ ａ １．９！１ｃ ｕｚ Ｕｏ、ｏ＋Ｏｙと
したものと、標準のＹｌＢ ａ ｚ Ｃｕ ３０ｖ−ｘ
組成の超伝導体についての温度と抵抗値の関係を示して
おり、本発明におけるＵによる置換体の臨界温度ＴＣは
９３’にであり、従来の標準のＹ、Ｂａ、Ｃｕ２０？−
１ｆ ＆ＩＩ成比威圧のの８４’Ｋに比して９″にの温
度上昇が見られた。Figure 2 shows an example of a superconductor according to the present invention, with a composition ratio of Y (B a 1.9!1c uz Uo, o+Oy) and a standard YlB az Cu 30v-x.
It shows the relationship between temperature and resistance value for superconductors with compositions, and the critical temperature TC of the substituted product by U in the present invention is 93', compared to the conventional standard Y, Ba, Cu20? −
A temperature increase of 9'' was observed compared to 84'K for 1f & II.
第３図には上記組成比のものについてのマイスナー効果
の確認試験の写真を示し、同図（イ）は本発明のもの、
同図（ロ）は従来の標準のものを示し、各写真において
下側の物体が超伝導体、超伝導体による磁気的反発力で
浮いている上側の物体が磁石であり、図（イ）に示すよ
うに、Ｕによる置換体は明らかにより強いマイスナー効
果を示すことが分かる。Figure 3 shows photographs of the Meissner effect confirmation test for the compositions with the above composition ratios, and (a) shows the composition of the present invention;
Figure (B) shows the conventional standard. In each photograph, the lower object is a superconductor, the upper object floating due to the magnetic repulsion of the superconductor is a magnet, and Figure (A) shows the conventional standard. As shown in , it can be seen that the substituted product with U clearly shows a stronger Meissner effect.
なお、上記実施例においては従来のＡＢＯ，型の酸化物
超伝導体Ｙ １ Ｂ ａ ２ Ｃｕ ｓ Ｏ？−ＸのＢ
ａを置換するアクチニド元素の例として、Ｕについて説
明したが、同様に電子数の多いプルトニウム等を使用し
てもよい。In the above embodiment, the conventional ABO type oxide superconductor Y 1 B a 2 Cu s O? -B of X
Although U has been described as an example of the actinide element that replaces a, plutonium or the like having a large number of electrons may be used as well.
以上のように本発明によれば、従来の高温超伝導体の組
成Ａ Ｂ Ｏｓ型の酸化物超伝導体Ｙ＋Ｂａ２ＣｕｚＯ
ｙ−８のＢａを一部電子数の多いアクチニド元素、例え
ばＵで置換し、自由電子密度を上げることにより元のＹ
Ｉ Ｂ ａｔ Ｃｕｚ ０ｙ−ｘ Ｍ威圧のものより
、臨界温度が高く、マイスナー効果が強く、液体窒素温
度領域において超伝導特性を示す超伝導体を得ることが
可能となり、実利用の際の安全係数の増大、経済性の向
上を図ることができ、また、劣化ウランの利用を図るこ
とができる。さらに、超伝導体により得られる磁場中で
、ウラン、プルトニウム等の元素の帯磁率の差を利用し
てこれらを分離することができると共に、同位体分離技
術にも適用できる。またレーザへの応用としてレーザ光
を強い磁場中に導き、周波数を可変とすることができ、
特定元素の励起に利用することが可能となる。さらに、
現在、用途のない劣化ウランＵ１′′を用いて超伝導体
を製造することができるので、資源の有効利用をはかる
ことができる。As described above, according to the present invention, the composition of the conventional high temperature superconductor is A B Os type oxide superconductor Y+Ba2CuzO
By partially replacing Ba in y-8 with an actinide element with a large number of electrons, such as U, and increasing the free electron density, the original Y
I B at Cuz 0y-x MIt is now possible to obtain a superconductor with a higher critical temperature, stronger Meissner effect, and superconducting properties in the liquid nitrogen temperature region, which reduces the safety factor in practical use. It is possible to increase the amount of uranium and improve economic efficiency, and it is also possible to utilize depleted uranium. Furthermore, it is possible to separate elements such as uranium and plutonium by utilizing the difference in their magnetic susceptibility in a magnetic field obtained by a superconductor, and it can also be applied to isotope separation technology. In addition, as an application to lasers, it is possible to guide laser light into a strong magnetic field and make the frequency variable.
It can be used to excite specific elements. moreover,
Since superconductors can be manufactured using depleted uranium U1'', which currently has no use, resources can be used effectively.
第１図は本発明の化合物超伝導体の製造工程を示す図、
第２図は本発明による超伝導体の一実施例で組成比がＹ
Ｉ Ｂ ａ １．９１１ｃ ｕｓ Ｕｏ、ｏＩＯｙのも
のと、標準の超伝導体の温度と抵抗値の関係を示す図、
第３図はマイスナー効果の確認試験の写真を示す図であ
る。
出 願 人 動力炉・核燃料開発事業団代理人 弁
理士 蛭 川 昌 信（外３名）逼 ＰＬ Ｔ・。
手続補正言動式）
昭和６３年 ３月１７日
特許庁長官 小 川 邦 夫 殿 、。
！、
■、事件の表示 昭和６２年特許願第２９１６３５号２
、発明の名称 化合物超伝導体
３、補正をする者
事件との関係 特許出廓人
住 所 東京都港区赤坂Ｉ丁目９番１３号名 称
動力炉・核燃料開発事業団代表者 林 政 義
４、代理人
住 所 東醤新１児−＾１轟Ｉ４ｒ
発送日 昭和６３年 ２月２３日
６、補正により増加する発明の数 な し７、補正
の対象 図面（第３図）及び代理権を証明する書面８、
補正の内容 別紙の通り
９、添付ｇ類の目録FIG. 1 is a diagram showing the manufacturing process of the compound superconductor of the present invention,
Figure 2 shows an example of a superconductor according to the present invention, with a composition ratio of Y.
A diagram showing the relationship between temperature and resistance of I B a 1.911c us Uo, oIOy and a standard superconductor,
FIG. 3 is a diagram showing a photograph of a confirmation test of the Meissner effect. Applicant Power Reactor and Nuclear Fuel Development Corporation Agent Patent Attorney Masanobu Hirukawa (3 others) PL T. Procedural Amendment Statement) March 17, 1986 Mr. Kunio Ogawa, Commissioner of the Patent Office. ! , ■, Display of the case 1988 Patent Application No. 291635 2
, Title of the invention Compound superconductor 3, Relationship to the amended person's case Patent distributor's address 9-13 Akasaka I-chome, Minato-ku, Tokyo Name
Power Reactor and Nuclear Fuel Development Corporation Representative Masayoshi Hayashi 4, Agent Address Tosho Shinichiji-^1 Todoroki I4r Date of Shipment February 23, 1986 6, Number of inventions increased by amendment None 7, Subject of amendment Drawing (Figure 3) and document certifying authority of agency 8,
Contents of amendment As shown in Attachment 9, Attachment G list
Claims (2)
バリウムの一部をウランで置換したことを特徴とする化
合物超伝導体。(1) In the Y-Ba-Cu-O based oxide superconductor,
A compound superconductor characterized by replacing a portion of barium with uranium.
＿０＿．＿０＿１Ｏ＿ｙであることを特徴とする特許請
求の範囲第１項記載の化合物超伝導体。(2) The composition ratio is Y_1Ba_1_. _9_8Cu_3U
＿0＿． The compound superconductor according to claim 1, which is _0_1O_y.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62291635A JPH01133941A (en) | 1987-11-18 | 1987-11-18 | Compound superconductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62291635A JPH01133941A (en) | 1987-11-18 | 1987-11-18 | Compound superconductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01133941A true JPH01133941A (en) | 1989-05-26 |
Family
ID=17771503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62291635A Pending JPH01133941A (en) | 1987-11-18 | 1987-11-18 | Compound superconductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01133941A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007527350A (en) * | 2003-06-11 | 2007-09-27 | デイビッド タラント、コリン | Method for manufacturing a doped superconductor material |
| KR20210014643A (en) | 2018-06-01 | 2021-02-09 | 에스테 가부시키가이샤 | Formulation for mask application |
-
1987
- 1987-11-18 JP JP62291635A patent/JPH01133941A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007527350A (en) * | 2003-06-11 | 2007-09-27 | デイビッド タラント、コリン | Method for manufacturing a doped superconductor material |
| KR20210014643A (en) | 2018-06-01 | 2021-02-09 | 에스테 가부시키가이샤 | Formulation for mask application |
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