JP2006199572A - Ybco系超伝導体のための前駆組成 - Google Patents
Ybco系超伝導体のための前駆組成 Download PDFInfo
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- JP2006199572A JP2006199572A JP2005318014A JP2005318014A JP2006199572A JP 2006199572 A JP2006199572 A JP 2006199572A JP 2005318014 A JP2005318014 A JP 2005318014A JP 2005318014 A JP2005318014 A JP 2005318014A JP 2006199572 A JP2006199572 A JP 2006199572A
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- 239000000203 mixture Substances 0.000 title claims abstract description 77
- 239000002243 precursor Substances 0.000 title claims abstract description 51
- 239000002887 superconductor Substances 0.000 title claims abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000011248 coating agent Substances 0.000 claims abstract description 30
- 150000003839 salts Chemical class 0.000 claims abstract description 22
- DTQVDTLACAAQTR-UHFFFAOYSA-M Trifluoroacetate Chemical compound [O-]C(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-M 0.000 claims abstract description 15
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims abstract description 10
- 238000003860 storage Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 19
- 239000002904 solvent Substances 0.000 claims description 19
- 229910052802 copper Inorganic materials 0.000 claims description 18
- 229910052788 barium Inorganic materials 0.000 claims description 17
- 229910052727 yttrium Inorganic materials 0.000 claims description 16
- 150000002894 organic compounds Chemical class 0.000 claims description 13
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 13
- 229910052731 fluorine Inorganic materials 0.000 claims description 9
- 239000011737 fluorine Substances 0.000 claims description 9
- -1 and RE Inorganic materials 0.000 claims description 8
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 6
- 229910021521 yttrium barium copper oxide Inorganic materials 0.000 abstract description 7
- 239000000470 constituent Substances 0.000 abstract description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 60
- 239000000243 solution Substances 0.000 description 31
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 24
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical class OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 23
- 239000010949 copper Substances 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- BQJILRFOGPBJQJ-UHFFFAOYSA-L barium(2+);2,2,2-trifluoroacetate Chemical compound [Ba+2].[O-]C(=O)C(F)(F)F.[O-]C(=O)C(F)(F)F BQJILRFOGPBJQJ-UHFFFAOYSA-L 0.000 description 9
- 239000011541 reaction mixture Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- JIDMEYQIXXJQCC-UHFFFAOYSA-L copper;2,2,2-trifluoroacetate Chemical compound [Cu+2].[O-]C(=O)C(F)(F)F.[O-]C(=O)C(F)(F)F JIDMEYQIXXJQCC-UHFFFAOYSA-L 0.000 description 6
- 239000012467 final product Substances 0.000 description 6
- RXUSTVIGZPRAQZ-UHFFFAOYSA-N 2,2,2-trifluoroacetic acid;yttrium Chemical compound [Y].OC(=O)C(F)(F)F.OC(=O)C(F)(F)F.OC(=O)C(F)(F)F RXUSTVIGZPRAQZ-UHFFFAOYSA-N 0.000 description 5
- 239000011013 aquamarine Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 238000011085 pressure filtration Methods 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical group [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 description 3
- 238000000634 powder X-ray diffraction Methods 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- VFRSADQPWYCXDG-LEUCUCNGSA-N ethyl (2s,5s)-5-methylpyrrolidine-2-carboxylate;2,2,2-trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F.CCOC(=O)[C@@H]1CC[C@H](C)N1 VFRSADQPWYCXDG-LEUCUCNGSA-N 0.000 description 2
- 150000002221 fluorine Chemical class 0.000 description 2
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- NFSAPTWLWWYADB-UHFFFAOYSA-N n,n-dimethyl-1-phenylethane-1,2-diamine Chemical compound CN(C)C(CN)C1=CC=CC=C1 NFSAPTWLWWYADB-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- SQNZLBOJCWQLGQ-UHFFFAOYSA-N 6,6,7,7,8,8,8-heptafluoro-2,2-dimethyloctane-3,5-dione Chemical compound CC(C)(C)C(=O)CC(=O)C(F)(F)C(F)(F)C(F)(F)F SQNZLBOJCWQLGQ-UHFFFAOYSA-N 0.000 description 1
- 241000954177 Bangana ariza Species 0.000 description 1
- 229910017488 Cu K Inorganic materials 0.000 description 1
- 229910017541 Cu-K Inorganic materials 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- ZUDYPQRUOYEARG-UHFFFAOYSA-L barium(2+);dihydroxide;octahydrate Chemical compound O.O.O.O.O.O.O.O.[OH-].[OH-].[Ba+2] ZUDYPQRUOYEARG-UHFFFAOYSA-L 0.000 description 1
- 229960003237 betaine Drugs 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- WOLVYCFDDSCRDJ-UHFFFAOYSA-L copper;oxido hydrogen carbonate Chemical compound [Cu+2].OOC([O-])=O.OOC([O-])=O WOLVYCFDDSCRDJ-UHFFFAOYSA-L 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical compound CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 1
- 239000013014 purified material Substances 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F19/00—Metal compounds according to more than one of main groups C07F1/00 - C07F17/00
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- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G3/00—Compounds of copper
- C01G3/006—Compounds containing, besides copper, two or more other elements, with the exception of oxygen or hydrogen
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/45—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on copper oxide or solid solutions thereof with other oxides
- C04B35/4504—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on copper oxide or solid solutions thereof with other oxides containing rare earth oxides
- C04B35/4508—Type 1-2-3
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- H10N60/00—Superconducting devices
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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Abstract
【解決手段】RE:Ba:Cu= 1:2:3の原子比を伴った各元素の塩からなる混合物を含む粉末状の前駆原料組成物からなり、その粉末前駆組成は、構成要素の適切な塩、特にトリフルオロ酢酸塩、酢酸塩またはそれらの混合物の形態で存在する。好ましくは、事前混合された粉末状前駆組成物内の含水量は1.5wt%未満であり、より好ましくは1wt%未満である。より少ない含水量は長期の貯蔵性を支援すると考えられる。
【選択図】なし
Description
第2精製ステップで、第1ステップの得られたゾル状またはゲル状の原料は、メタノールまたはエタノール等の低級アルコールに溶解されて、水/酢酸を置換することによって、蒸留後に低減された水/酢酸含有量を伴うトリフルオロ酢酸金属塩の混合物が得られ、それは半透明青色のゲル状またはゾル状の物質である。この精製された物質は被覆を実行するための被覆溶液を調製するために使用される。
66.42グラム(1/10モル)のYBCO1:2:3を含む、還流冷却器、滴下漏斗、温度計、ポリテトラフルオロエチレン磁気スターバーが具備された500ミリリットルの3つ口フラスコに、150グラム(1.16モル;101ミリリットル)のトリフルオロ酢酸塩(約1%の酸の超過量と対応)が添加された。その反応混合物は、室温で約2時間の攪拌が許容された。次いで50ミリリットルの脱イオン水が滴下漏斗を介して添加された。次いでその反応混合物は水槽で沸点まで加熱されてから、湯浴で約2時間攪拌された。次いで、その反応混合物は60℃まで冷却され、200ミリリットルのメタノールが添加された。室温まで冷却された後、結果としての紺青色溶液を、Sartorius社加圧濾過キットを用いて濾過した。
1. 元素としてのイットリウム、バリウム、および、銅の単一トリフルオロ酢酸塩の製造:
1.1 トリフルオロ酢酸イットリウム:
112.9グラム(1/2モル)のイットリウム酸化物を含む、還流冷却器、滴下漏斗、温度計、ポリテトラフルオロエチレン磁気スターバーが具備された500ミリリットルの3つ口フラスコに、100ミリリットルのメタノールが添加された。次いで116グラム(1.01モル;79ミリリットル)のトリフルオロ酢酸が、それに急激に滴下された(約1%の酸の超過量と対応)。
315.33グラム(1モル)のバリウム水酸化八水和物を伴う、還流冷却器、滴下漏斗、温度計、ポリテトラフルオロエチレン磁気スターバーが具備された1000ミリリットルの3つ口フラスコに、100ミリリットルのメタノールが添加された。次いで230グラム(2.02モル;155ミリリットル)のトリフルオロ酢酸がそれに急激に滴下された(約1%の酸の超過量と対応)。
166.5グラム(3/4モル)の銅ヒドロキシ・カルボネート(1.5モルの銅に対応)を伴う、還流冷却器、滴下漏斗、温度計、ポリテトラフルオロエチレン磁気スターバーが具備された1000ミリリットルの3つ口フラスコに、150ミリリットルのメタノールが添加された。次いで345グラム(3.03モル;233ミリリットル)のトリフルオロ酢酸がそれに急激に滴下された(約1%の酸の超過量と対応)。
上述した1.1乃至1.3で得られたトリフルオロ酢酸塩は、イットリウム:バリウム:銅=1:2:3の原子比で混合され、メタノール中に溶解された。その溶液をロータリ・エバポレータで乾燥した。最終生成物として、トリフルオロ酢酸イットリウム、トリフルオロ酢酸バリウム、トリフルオロ酢酸銅、水結合及び/またはメタノール結合された結晶質から成るアクアマリン色の粉末が得られた。
1モルのトリフルオロ酢酸イットリウムを、2モルのトリフルオロ酢酸バリウムと3モルのトリフルオロ酢酸銅とに混合し、メタノール中に溶解した。その溶液をロータリ・エバポレータで乾燥した。最終生成物として、トリフルオロ酢酸イットリウム、トリフルオロ酢酸バリウム、酢酸銅、水結合及び/またはメタノール結合された結晶質から成るアクアマリン色の粉末が得られた。
1モルの酢酸イットリウムを、2モルのトリフルオロ酢酸バリウムと3モルの酢酸銅とに混合し、メタノール中に溶解した。その溶液をロータリ・エバポレータで乾燥した。最終生成物として、酢酸イットリウム、トリフルオロ酢酸バリウム、酢酸銅、水結合及び/またはメタノール結合された結晶質から成るアクアマリン色の粉末が得られた。
Claims (20)
- 粉末前駆組成であって、前記粉末組成が有機化合物を伴うRE、Ba、および、Cuの塩の混合物であり、前記REがイットリウムを含む少なくとも1つの希土類元素であり、RE、Ba、および、Cuの原子比が1:2:3であり、少なくともBaの場合、前記有機化合物がフッ素を含有し、前記粉末前駆組成が貯蔵に適合できることを特徴とする粉末前駆組成。
- 前記RE及びCuが、トリフルオロ酢酸塩、6,6,7,7,8,8,8-ヘプタフルオロ-2,2-ジメチル-3,5-オクタンジオナート(fod)、または、酢酸塩の形態で前記組成中に存在することを特徴とする、請求項1に記載の粉末前駆組成。
- Baが、トリフルオロ酢酸塩またはfodの形態で前記組成中に存在することを特徴とする、請求項1または2に記載の粉末前駆組成。
- RE、Ba、および、Cuが、トリフルオロ酢酸塩またはfodの形態で前記組成中に存在することを特徴とする、請求項1乃至3の内の何れか一項に記載の粉末前駆組成。
- REがイットリウムであることを特徴とする、請求項1乃至4の内の何れか一項に記載の粉末前駆組成。
- 前記組成内の含水量が1.5%w/w未満であることを特徴とする、請求項1乃至5の内の何れか一項に記載の粉末前駆組成。
- 前記組成が貯蔵用にガラスビン内に含まれていることを特徴とする、請求項1乃至6の内の何れか一項に記載の粉末前駆組成。
- 前記粉末が結晶質または微晶質であることを特徴とする、請求項1乃至7の内の何れか一項に記載の粉末前駆組成。
- 前記粉末前駆組成がタブレットにプレスされることを特徴とする、請求項1乃至8の内の何れか一項に記載の粉末前駆組成。
- 請求項1乃至9の内の何れか一項に記載の粉末前駆組成を調製する方法であって、有機化合物を伴うRE、Ba、および、Cuの塩から成る混合物と溶媒とを含む溶液が調製され、REがイットリウムを含む少なくとも1つの希土類元素であり、前記混合物中におけるRE、Ba、および、Cuの原子比が1:2:3であり、前記溶媒を除去することで、前記粉末組成を得ることを特徴とする方法。
- RE及びCuが、トリフルオロ酢酸塩、fod、または、酢酸塩の形態で前記組成中に存在することを特徴とする、請求項10に記載の方法。
- Baがトリフルオロ酢酸塩の形態で存在することを特徴とする、請求項10または11に記載の方法。
- Baがfodの形態で存在することを特徴とする、請求項10乃至12の内の何れか一項に記載の方法。
- 結果としての粉末前駆組成が貯蔵用に形成されることを特徴とする、請求項10乃至13の内の何れか一項に記載の方法。
- 前記粉末前駆組成がガラスビン内に詰められることを特徴とする、請求項14に記載の方法。
- 前記粉末前駆組成がタブレットにプレスされることを特徴とする、請求項14に記載の方法。
- 被覆技術によってRE1Ba2Cu3O系超伝導体原料を調製するための被覆溶液の調製に用意された事前混合物として、請求項1乃至16の内の何れか一項に記載の事前混合された粉末前駆組成の用途であって、REがイットリウムを含む少なくとも1つの希土類元素であることから成る用途。
- 前記粉末前駆組成がY1Ba2Cu3O系超伝導体原料の調製のための前駆原料として使用されることを特徴とする、請求項17に記載の用途。
- 被覆技術によってRE1Ba2Cu3O系超伝導体原料を調製するための被覆溶液の調製のための貯蔵可能な事前混合物として、請求項1乃至16の内の何れか一項に記載の事前混合された粉末前駆組成の用途であって、REがイットリウムを含む少なくとも1つの希土類元素であることから成る用途。
- 前記事前混合物がガラスビン内に貯蔵されるか、または、タブレットにプレスされる、請求項19に記載の用途。
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JP4050730B2 (ja) * | 2004-07-30 | 2008-02-20 | 株式会社東芝 | 酸化物超電導体およびその製造方法 |
US7622424B2 (en) * | 2004-10-01 | 2009-11-24 | American Superconductor Corporation | Thick superconductor films with improved performance |
CN100415680C (zh) * | 2006-10-09 | 2008-09-03 | 西南交通大学 | 一种无氟的化学溶剂沉积制备钇钡铜氧高温超导涂层导体的方法 |
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US20100015340A1 (en) * | 2008-07-17 | 2010-01-21 | Zenergy Power Inc. | COMPOSITIONS AND METHODS FOR THE MANUFACTURE OF RARE EARTH METAL-Ba2Cu3O7-delta THIN FILMS |
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DE602005013886D1 (de) | 2009-05-28 |
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US9112106B2 (en) | 2015-08-18 |
EP1655787A1 (en) | 2006-05-10 |
ATE429037T1 (de) | 2009-05-15 |
KR101214241B1 (ko) | 2012-12-20 |
JP5273903B2 (ja) | 2013-08-28 |
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