JPH04501700A - How to increase the resistance of high Tc superconductors to environmental influences - Google Patents
How to increase the resistance of high Tc superconductors to environmental influencesInfo
- Publication number
- JPH04501700A JPH04501700A JP1505452A JP50545289A JPH04501700A JP H04501700 A JPH04501700 A JP H04501700A JP 1505452 A JP1505452 A JP 1505452A JP 50545289 A JP50545289 A JP 50545289A JP H04501700 A JPH04501700 A JP H04501700A
- Authority
- JP
- Japan
- Prior art keywords
- superconductor
- resistance
- superconductors
- environmental influences
- increase
- 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 description 18
- 230000007613 environmental effect Effects 0.000 title claims description 6
- 238000000034 method Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 150000008282 halocarbons Chemical class 0.000 claims description 2
- 230000005661 hydrophobic surface Effects 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 125000006239 protecting group Chemical group 0.000 claims description 2
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 claims 1
- 239000011261 inert gas Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 229910001868 water Inorganic materials 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 239000002156 adsorbate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- -1 tert-butyl chloride Chemical class 0.000 description 1
- NBRKLOOSMBRFMH-UHFFFAOYSA-N tert-butyl chloride Chemical compound CC(C)(C)Cl NBRKLOOSMBRFMH-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
- C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
- C04B41/4922—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane
- C04B41/4933—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane containing halogens, i.e. organohalogen silanes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/82—Coating or impregnation with organic materials
- C04B41/84—Compounds having one or more carbon-to-metal of carbon-to-silicon linkages
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N60/00—Superconducting devices
- H10N60/01—Manufacture or treatment
- H10N60/0268—Manufacture or treatment of devices comprising copper oxide
- H10N60/0661—Processes performed after copper oxide formation, e.g. patterning
- H10N60/0716—Passivating
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 高ＴＣ超伝導体の環境による影響に対する抵抗性を高める方法 本発明は、高ＴＯ超伝導体の環境による影響に対する抵抗性を高める方法に関す る。[Detailed description of the invention] How to increase the resistance of high TC superconductors to environmental influences The present invention relates to a method for increasing the resistance of high TO superconductors to environmental influences. Ru.
最近知られるようになった高Ｔｃ超伝導体技術をより広い範囲で使用する妨げに なっている主な難点の１つは、これらの材料の環境による影響、特に水分、に対 する抵抗性が足りないことである。impeding broader use of recently known high-Tc superconductor technology. One of the main difficulties in developing these materials is the resistance of these materials to environmental influences, especially moisture. There is a lack of resistance to
本発明は、超伝導体材料の゛表面に疎−水性表面保護基を導入することによって 、この問題を実質的に無くすことにはならないが、これを大幅に減じるものであ る。The present invention is achieved by introducing a hydrophobic surface protecting group onto the surface of a superconductor material. Although it does not effectively eliminate this problem, it does significantly reduce it. Ru.
本発明の方法の有利な具体例では、粉末、粒体、薄膜あるいはセラミック体の形 の高Ｔｃ超伝導体材料を、（ＣＨ３） ３Ｓ ＋ （： Ｉのような有機ハロシ ランで処理する。超伝導体の表面上に吸着されたＨ２Ｏは、ＭＣＩの分離と共に この方法で除去され、（Ｃ）Ｔ３ ） ｓ Ｓ ｉ ＯＨ吸着質が生成される。In an advantageous embodiment of the method according to the invention, the A high Tc superconductor material of (CH3) 3S + (: I Process with a run. The H2O adsorbed on the surface of the superconductor is accompanied by the separation of MCI. In this way, it is removed and (C)T3)sSiOH adsorbate is produced.
表面水酸化物基（一般には酸化物の表面基）も、ＨＣｌの分離と共に変る。この 方法では、疎水性（ＣＨ３） ３ Ｓ ｉ Ｏ基が保護すべき表面に結合する。The surface hydroxide groups (generally oxide surface groups) also change with HCl separation. this In the method, hydrophobic (CH3)3SiO groups are attached to the surface to be protected.
このようにして処理された超伝導体は水にぬれず、未処理材料に比べて、環境に よる影響に対してかなり高い抵抗性を示す。Superconductors treated in this way do not get wet with water and are more environmentally friendly than untreated materials. shows a fairly high resistance to the effects of
本発明の好ましい具体例では、環境による影響から保護すべき超伝導体材料を、 実際の表面保護処理を行なう前に、Ｈ２Ｏで簡単な予備処理する。これは、湿っ たアルゴンの流れ、例えばＨ２Ｏで飽和したもの、の中で処理することによって 行なうと都合がよい。この処理工程は、２価の元素（Ｅ）、あるいは３価の元素 （Ｍ）、がわずかに不足した酸化性高Ｔｃ超伝導体材料の場合に特に効果的であ る。ＥあるいはＭがわずかに不足したそのような材料は、ドイツ特許出願Ｐ３． ８０５，９５４゜１−４５にたいへん詳しく記載されている。特に好ましい材料 はＹ Ｒａ １．９５Ｃｕ ｓ Ｏ６，４５＋０．２５である。この場合、Ｒａ （ＯＨ）ｚまたはＲａＣ０ａ−が形成される恐れもない。In a preferred embodiment of the invention, the superconductor material to be protected from environmental influences is Before carrying out the actual surface protection treatment, a simple pretreatment with H2O is performed. This is damp by treatment in a stream of argon, e.g. saturated with H2O. It is convenient to do so. This treatment process is performed using divalent elements (E) or trivalent elements. (M) is particularly effective in the case of oxidizing high Tc superconductor materials that are slightly deficient in Ru. Such materials with a slight deficiency in E or M are described in German patent application P3. 805,954°1-45. Particularly preferred materials is Y Ra 1.95 Cu s O6,45+0.25. In this case, Ra There is also no risk of (OH)z or RaC0a- being formed.
実施例： 粉末、粒体、薄膜または成形焼結体の形のＹ Ｒａ ２−Ｆ １．９ ５ｃ ｕ ａ Ｏｘ （ｘは７よりやや少ナイ）超伝導体材料を数分間、湿った アルゴンの流れに当て、乾燥しそして次に約１時間、液体シラン（ＣＨ３） ３ Ｓ １Ｃ１（ｓｉｃ）に浸漬する。次に、過剰のシランおよび形成された塩酸 ＭＣＩを減圧上除去する。Example: Y Ra 2-F 1.9 in the form of powder, granules, thin film or shaped sintered body 5c u a Ox (x is slightly less than 7) The superconductor material is moistened for several minutes. Dry under a stream of argon and then apply liquid silane (CH3) for about 1 hour. Immerse in S1C1 (sic). Then excess silane and the formed hydrochloric acid MCI is removed under reduced pressure.
このようにして「含浸した」超伝導体酸化物は著しく疎水性であり、液体の水に よってぬれない。１週間Ｈ２０で処理した後でも、性質の大幅な悪化は観察され なかった。Superconducting oxides "impregnated" in this way are extremely hydrophobic and resistant to liquid water. Therefore, it cannot get wet. Even after one week of treatment with H20, no significant deterioration of properties was observed. There wasn't.
上記トリメチルグロロシランの代わりに、他の適当なアルキルハロシランまたは ハロゲン化炭化水素、例えば第３ブチルクロリド、（ＣＴ（３） ３ ＣＣｌ 、ももちろん使用しつる。Instead of the above trimethylglorosilane, other suitable alkylhalosilanes or Halogenated hydrocarbons, such as tert-butyl chloride, (CT(3)3CCl) , also of course use vine.
補正書の翻訳文提出書 （特許法第１８４条の８） 平成 ２年／１月 ７日Submission of translation of written amendment (Article 184-8 of the Patent Act) January 7, 1990
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3816029A DE3816029A1 (en) | 1988-05-10 | 1988-05-10 | METHOD FOR INCREASING THE RESISTANCE OF HIGH-T (DOWN ARROW) C (DOWN ARROW) SUPERLADES AGAINST ENVIRONMENTAL INFLUENCES |
| DE3816029.3 | 1988-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04501700A true JPH04501700A (en) | 1992-03-26 |
Family
ID=6354116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1505452A Pending JPH04501700A (en) | 1988-05-10 | 1989-05-10 | How to increase the resistance of high Tc superconductors to environmental influences |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0413740A1 (en) |
| JP (1) | JPH04501700A (en) |
| DE (1) | DE3816029A1 (en) |
| WO (1) | WO1989010909A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02281511A (en) * | 1989-03-09 | 1990-11-19 | Dow Corning Corp | Method of protecting superconductor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4117489A1 (en) * | 1991-05-28 | 1992-12-03 | Siemens Ag | Chemical polishing of surfaces of high temp. ceramic superconductors - using dilute acid which is further diluted and removed followed by rinsing with solvent |
| DE4304573A1 (en) * | 1993-02-16 | 1994-08-18 | Forschungsgesellschaft Fuer In | Passivation layer for high-temperature superconductors and method for applying it |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1060424A (en) * | 1952-07-19 | 1954-04-01 | Rhone Poulenc Sa | Process for waterproofing solid bodies |
| FR1180848A (en) * | 1956-08-09 | 1959-06-09 | Thomson Houston Comp Francaise | Water resistant mica paper |
| FR1323478A (en) * | 1962-06-04 | 1963-04-05 | Dow Corning | Treatment of materials with alkoxysilanes entrained with water vapor |
| DE3635260A1 (en) * | 1986-10-16 | 1988-04-28 | Wacker Chemie Gmbh | METHOD FOR MAKING WATER REPELLENT OF SUCTIONABLE INORGANIC CONSTRUCTION MATERIALS |
-
1988
- 1988-05-10 DE DE3816029A patent/DE3816029A1/en not_active Withdrawn
-
1989
- 1989-05-10 EP EP89905673A patent/EP0413740A1/en not_active Withdrawn
- 1989-05-10 JP JP1505452A patent/JPH04501700A/en active Pending
- 1989-05-10 WO PCT/EP1989/000511 patent/WO1989010909A1/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02281511A (en) * | 1989-03-09 | 1990-11-19 | Dow Corning Corp | Method of protecting superconductor |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0413740A1 (en) | 1991-02-27 |
| DE3816029A1 (en) | 1989-11-16 |
| WO1989010909A1 (en) | 1989-11-16 |
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