CN1519385A - 富氧铌导线 - Google Patents

富氧铌导线 Download PDF

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Publication number
CN1519385A
CN1519385A CNA2004100027778A CN200410002777A CN1519385A CN 1519385 A CN1519385 A CN 1519385A CN A2004100027778 A CNA2004100027778 A CN A2004100027778A CN 200410002777 A CN200410002777 A CN 200410002777A CN 1519385 A CN1519385 A CN 1519385A
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Prior art keywords
niobium
oxygen
lead
wire
vvire
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CN1328404C (zh
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��B����¶�
B·斯帕尼奥尔
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Heraeus Materials Technology & Co GmbH
WC Heraus GmbH and Co KG
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WC Heraus GmbH and Co KG
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
    • C22C27/02—Alloys based on vanadium, niobium, or tantalum
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/10—Oxidising

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Powder Metallurgy (AREA)
  • Conductive Materials (AREA)
  • Non-Insulated Conductors (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

本发明描述了铌导线，其制备方法和其连接铌冷凝器或氧化铌冷凝器的用途。该导线富含氧，其含氧量优选为约3000－30000μg/g。

Description

富氧铌导线
技术领域
本发明涉及一种新型的铌导线，其制备方法以及其连接铌冷凝器或氧化铌冷凝器的用途。
背景技术
利用耐温金属导线电连接金属粉冷凝器(Metallpulver-Kondensatoren)。
为此，人们通常使用钽导线。使用这种导线的缺点是烧结温度较高。由此粉状阳极的表面因粉末部分烧结在一起而不能被完全利用。另外，将钽导线与铌冷凝器和氧化铌冷凝器一起使用导致可回收利用能力不下降。而且，钽的价格需要经过很多推测，故粗材的成本难以计算和控制。
推荐使用铌导线连接粉状阳极。US6358625B1举例说明了铌或钽制阳极导线，为改善这种导线的粘附性，用氧进行处理，以使导线的表面富集35at.％(Atom％)数量级的氧，厚度约为50nm。一般的铌导线和钽导线仅含少量的氧。对于钽而言，含氧量为50-300μg/g。表面富集的作用不是为了改善诸如传导性类的一般特性，而是提高粘附性。其烧结温度约为1250℃。
发明内容
本发明的目的是提供一种耐1200至1400℃高温的铌导线。
该目的是通过富集高含量氧的铌导线实现的。含氧量优选为约3000至30000μg/g。该导线特别适合用于连接铌冷凝器或氧化铌冷凝器。
人们认为间隙的污染减弱了栅极的移动并由此阻塞了晶界，使得在粉状阳极的烧结温度下避免形成大颗粒。
在制备时，在升高的温度下，优选600至约800℃和低于5mbar的压力下通过扩散过程使铌负载氧。该过程通常是在含氧环境下，例如纯氧或诸如空气的含氧混合气体中进行。这样就形成一种耐温的铌合金，该铌合金在1200至1400℃的温度下，在金属上没有发现可以觉察到的蒸气压，由于对其进行分离，Nb2O5层的稳定性(绝缘材料)会对阳极体产生负面影响。可将该合金在室温下加工成直径为0.2至0.4mm的导线。
优选将导线用作铌冷凝器或氧化铌冷凝器中的连接线。这种冷凝器的制备与钽冷凝器类似，是用金属铌粉制备的。烧结(与导线一起烧结)后，在表面上“形成”金属铌，即被阳极氧化，从而形成作为绝缘材料的超薄Nb2O5层。
下面的实施例旨在详细说明本发明，而并非对其进行限制。
具体实施方式
使粗制线(Vordraht)形式的铌在600至800℃的温度和低于5mbar的压力下，于空气中负载氧，以便通过同时进行的扩散过程富集大量的氧。这样就产生了含氧量达到3000至30000μg/g的铌合金。将由此制备的铌合金在室温下拉制成直径为0.2至0.4mm的导线。

Claims (9)

1.铌导线，其特征在于：导线富含氧。
2.根据权利要求1的铌导线，其中含氧量约为3000至30000μg/g。
3.富氧铌导线的制备方法，其特征在于：在一个密闭的室内和在升高的温度下，于含氧环境中对铌进行处理，并将由此处理过的铌拉制成导线。
4.根据权利要求3的方法，其中在空气环境下进行处理。
5.根据权利要求3的方法，其中拉制的导线直径为0.2至0.4mm。
6.根据权利要求3的方法，其中该处理是在600至800℃的温度下进行的。
7.根据权利要求3的方法，其中该处理是在低于5mbar的压力下进行的。
8.根据权利要求3的方法，其中该导线拉制是在室温下进行的。
9.富氧铌导线的用途，用作连接铌冷凝器或氧化铌冷凝器。
CNB2004100027778A 2003-02-05 2004-01-20 富氧铌导线 Expired - Fee Related CN1328404C (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10304756A DE10304756B4 (de) 2003-02-05 2003-02-05 Sauerstoffangereicherter Niob-Draht
DE10304756.5 2003-02-05
DEDE10304756.5 2003-02-05

Publications (2)

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CN1519385A true CN1519385A (zh) 2004-08-11
CN1328404C CN1328404C (zh) 2007-07-25

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US (2) US20040149356A1 (zh)
JP (1) JP4638675B2 (zh)
CN (1) CN1328404C (zh)
AT (1) AT413384B (zh)
DE (1) DE10304756B4 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10304756B4 (de) * 2003-02-05 2005-04-07 W.C. Heraeus Gmbh Sauerstoffangereicherter Niob-Draht
DE102004032128B4 (de) * 2003-10-17 2010-10-14 W.C. Heraeus Gmbh Metallischer Werkstoff, Herstellverfahren und Verwendung
DE102004011214A1 (de) 2004-03-04 2005-10-06 W.C. Heraeus Gmbh Hochtemperaturbeständiger Niob-Draht
DE102005038551B3 (de) * 2005-08-12 2007-04-05 W.C. Heraeus Gmbh Draht und Gestell für einseitig gesockelte Lampen auf Basis von Niob oder Tantal sowie Herstellungsverfahren und Verwendung
US8325465B2 (en) * 2007-04-13 2012-12-04 Kemet Electronics Corporation NbO capacitors with improved performance and higher working voltages
US20080254269A1 (en) * 2007-04-13 2008-10-16 Yuri Freeman NbO Capacitors With Improved Performance And Higher Working Voltages
CN106917023B (zh) * 2017-03-21 2019-05-24 西安交通大学 一种力学性能优良的金属材料及其制备方法

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US4526629A (en) * 1984-05-15 1985-07-02 International Business Machines Corporation Catalytic oxidation of solid materials
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JPH11264064A (ja) * 1998-03-18 1999-09-28 Japan Energy Corp 超電導材料の製造方法及びそれにより得られた超電導材料
US6261337B1 (en) * 1999-08-19 2001-07-17 Prabhat Kumar Low oxygen refractory metal powder for powder metallurgy
US6521173B2 (en) * 1999-08-19 2003-02-18 H.C. Starck, Inc. Low oxygen refractory metal powder for powder metallurgy
US6358625B1 (en) * 1999-10-11 2002-03-19 H. C. Starck, Inc. Refractory metals with improved adhesion strength
US6545858B1 (en) * 1999-11-30 2003-04-08 Showa Denko K.K. Capacitor
JP2004528926A (ja) 2001-06-05 2004-09-24 アプライド メディカル リソーシーズ コーポレイション 外科手術器具
DE10304756B4 (de) * 2003-02-05 2005-04-07 W.C. Heraeus Gmbh Sauerstoffangereicherter Niob-Draht
DE102004032128B4 (de) * 2003-10-17 2010-10-14 W.C. Heraeus Gmbh Metallischer Werkstoff, Herstellverfahren und Verwendung

Also Published As

Publication number Publication date
JP4638675B2 (ja) 2011-02-23
CN1328404C (zh) 2007-07-25
ATA19972003A (de) 2005-07-15
US8262813B2 (en) 2012-09-11
AT413384B (de) 2006-02-15
JP2004247299A (ja) 2004-09-02
DE10304756B4 (de) 2005-04-07
US20040149356A1 (en) 2004-08-05
US20070017611A1 (en) 2007-01-25
DE10304756A1 (de) 2004-11-25

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