JP2015528059A - 超伝導高周波空洞の電気化学システム及び電解研磨方法 - Google Patents
超伝導高周波空洞の電気化学システム及び電解研磨方法 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/16—Polishing
- C25F3/22—Polishing of heavy metals
- C25F3/26—Polishing of heavy metals of refractory metals
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/14—Vacuum chambers
- H05H7/18—Cavities; Resonators
- H05H7/20—Cavities; Resonators with superconductive walls
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- 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
- H10N60/0156—Manufacture or treatment of devices comprising Nb or an alloy of Nb with one or more of the elements of group IVB, e.g. titanium, zirconium or hafnium
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- Materials Engineering (AREA)
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- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Description
M0→Mn++ne− 式1
M0+xH2O→MOx+2xH++2xe− 式2
H2O→2H++O2+2e− 式3
界面活性剤の添加が電解研磨を促進することが見出されている。この理由の1つとしては、界面活性剤が電解質の攪拌による拡散工程に影響を与えない小さな泡の形成を促進するためである。このため、Triton X(ポリエチレングリコールp−(1,1,3,3−テトラメチルブチル)−フェニルエーテル(Rohm and Haas社製)のような従来の界面活性剤を従来の量で用いてもよい。
Claims (12)
- 超伝導高周波空洞内に電極を配置する工程と、
前記電極に対して前記超伝導高周波空洞を垂直に向ける工程と、
硫酸水溶液を含み、フッ化水素酸を含むまず、15cP未満の粘度を有する電解質溶液を前記超伝導高周波空洞に充填する工程と、
前記超伝導高周波空洞と前記電極との間に電流を通す工程とを備え、
前記電流は、複数のアノードパルスと複数のカソードパルスとからなり、
前記カソードパルスは、前記アノードパルスの少なくともいくつかの間に挿入されることを特徴とする超伝導高周波空洞を電解研磨する方法。 - 前記電解質溶液は、約4cP未満の粘度を有することを特徴とする請求項1に記載の方法。
- 前記電解質溶液は、約200mS/cm超の導電率を有することを特徴とする請求項2に記載の方法。
- 前記電圧及び前記アノードパルスオン時間は、カソードパルスにより効果的に除去される厚さに不動態金属酸化物の形成を限定しつつ、超伝導高周波空洞を研磨するように調整されることを特徴とする請求項3に記載の方法。
- 前記前記電解質溶液は、フッ化物酸又塩を実質的に含まないことを特徴とする請求項1に記載の方法。
- 前記カソードパルス電圧は、4V超であることを特徴とする請求項4に記載のシステム。
- 前記電解質溶液は、電解質水溶液であることを特徴とする請求項1に記載のシステム。
- 前記超伝導高周波空洞は、ニオブ及びニオブ合金、チタン及びチタン合金、ジルコニア及びジルコニア合金、ハフニウム及びハフニウム合金、タンタル及びタンタル合金、モリブデン及びモリブデン合金、タングステン及びタングステン合金、クロムコバルト合金からなる一群から選択された金属からなることを特徴とする請求項2に記載の方法。
- 前記超伝導高周波空洞は、ニオブ又はニオブ合金からなることを特徴とする請求項8に記載の方法。
- 前記電解質は、少なくとも約10%の水を含むことを特徴とする請求項7に記載の方法。
- 前記電解質は、約1重量%〜70重量%の硫酸を含むことを特徴とする請求項10に記載の方法。
- 前記電解質は、約20重量%〜40重量%の硫酸を含むことを特徴とする請求項11に記載の方法。
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US13/546,072 | 2012-07-11 | ||
US13/546,072 US9006147B2 (en) | 2012-07-11 | 2012-07-11 | Electrochemical system and method for electropolishing superconductive radio frequency cavities |
PCT/US2013/045056 WO2014018171A1 (en) | 2012-07-11 | 2013-06-11 | Electropolishing of superconductive radio frequency cavities |
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US (3) | US9006147B2 (ja) |
EP (1) | EP2849908B8 (ja) |
JP (1) | JP6023323B2 (ja) |
MX (1) | MX360786B (ja) |
WO (1) | WO2014018171A1 (ja) |
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JP2017214615A (ja) * | 2016-05-31 | 2017-12-07 | 株式会社カネカ | 電解研磨液および電解研磨された金属成形体の製造方法 |
JP2018154889A (ja) * | 2017-03-21 | 2018-10-04 | マルイ鍍金工業株式会社 | 電解処理装置および方法 |
WO2019151102A1 (ja) * | 2018-02-02 | 2019-08-08 | マルイ鍍金工業株式会社 | 電解研磨方法および装置 |
JP2019192539A (ja) * | 2018-04-26 | 2019-10-31 | 三菱重工機械システム株式会社 | 超伝導加速空洞の加工装置及び方法 |
JP2021510768A (ja) * | 2018-01-26 | 2021-04-30 | ドライライテ エス.エル. | 自由固体を介したイオン輸送による金属の平滑化および研磨のための方法における電解質としてのh2so4の使用 |
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US20150114847A1 (en) | 2015-04-30 |
US20180178302A1 (en) | 2018-06-28 |
JP6023323B2 (ja) | 2016-11-09 |
US9987699B2 (en) | 2018-06-05 |
US9006147B2 (en) | 2015-04-14 |
US20140018244A1 (en) | 2014-01-16 |
MX360786B (es) | 2018-11-16 |
EP2849908B8 (en) | 2017-04-19 |
EP2849908A1 (en) | 2015-03-25 |
EP2849908A4 (en) | 2015-11-25 |
MX2015000412A (es) | 2015-03-12 |
WO2014018171A1 (en) | 2014-01-30 |
EP2849908B1 (en) | 2017-02-15 |
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