Diffusion barriers in modified air brazes

Weil, Kenneth Scott; Hardy, John S; Kim, Jin Yong; Choi, Jung-Pyung

Title: Diffusion barriers in modified air brazes

Abstract

A method for joining two ceramic parts, or a ceramic part and a metal part, and the joint formed thereby. The method provides two or more parts, a braze consisting of a mixture of copper oxide and silver, a diffusion barrier, and then heats the braze for a time and at a temperature sufficient to form the braze into a bond holding the two or more parts together. The diffusion barrier is an oxidizable metal that forms either a homogeneous component of the braze, a heterogeneous component of the braze, a separate layer bordering the braze, or combinations thereof. The oxidizable metal is selected from the group Al, Mg, Cr, Si, Ni, Co, Mn, Ti, Zr, Hf, Pt, Pd, Au, lanthanides, and combinations thereof.

Inventors:

Weil, Kenneth Scott ^[1]; Hardy, John S ^[1]; Kim, Jin Yong ^[1]; Choi, Jung-Pyung ^[1]

Richland, WA

Issue Date:: 2010-04-06

Research Org.:: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 985336

Patent Number(s):: 7691488

Application Number:: 11/811,633

Assignee:: Battelle Memorial Institute (Richland, WA)

Patent Classifications (CPCs):: Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

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Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/12667 - Oxide of transition metal or Al

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B37/006 - {consisting of metals or metal salts}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M8/1213 - characterised by the electrode/electrolyte combination or the supporting material

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B2237/125 - based on noble metals, e.g. silver

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M8/0297 - Arrangements for joining electrodes, reservoir layers, heat exchange units or bipolar separators to each other

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B2237/121 - based on aluminium
C04B2235/3232 - Titanium oxides or titanates, e.g. rutile or anatase

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P70/50 - Manufacturing or production processes characterised by the final manufactured product

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B2237/343 - Alumina or aluminates
C04B2237/708 - of one or more of the interlayers

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T156/10 - Methods of surface bonding and/or assembly therefor

Y - NEW / CROSS SECTIONAL TECHNOLOGIES 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
Y02E60/50 - Fuel cells

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B2235/3281 - Copper oxides, cuprates or oxide-forming salts thereof, e.g. CuO or Cu2O

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M8/124 - characterised by the process of manufacturing or by the material of the electrolyte

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/249927 - Fiber embedded in a metal matrix

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B2235/656 - characterised by specific heating conditions during heat treatment

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/12535 - with additional, spatially distinct nonmetal component

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B2235/6562 - Heating rate

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/31678 - Of metal
Y10T428/12618 - Plural oxides

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B37/026 - {consisting of metals or metal salts}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/12896 - Ag-base component

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DOE Contract Number:: AC06-76RL01830

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Weil, Kenneth Scott, Hardy, John S, Kim, Jin Yong, and Choi, Jung-Pyung. Diffusion barriers in modified air brazes.  United States: N. p., 2010. 
        Web.

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                    Weil, Kenneth Scott, Hardy, John S, Kim, Jin Yong, & Choi, Jung-Pyung. Diffusion barriers in modified air brazes.  United States.

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                    Weil, Kenneth Scott, Hardy, John S, Kim, Jin Yong, and Choi, Jung-Pyung. Tue .  
        "Diffusion barriers in modified air brazes".  United States.  https://www.osti.gov/servlets/purl/985336.

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@article{osti_985336,

  title        = {Diffusion barriers in modified air brazes},

  author       = {Weil, Kenneth Scott and Hardy, John S and Kim, Jin Yong and Choi, Jung-Pyung},

  abstractNote = {A method for joining two ceramic parts, or a ceramic part and a metal part, and the joint formed thereby. The method provides two or more parts, a braze consisting of a mixture of copper oxide and silver, a diffusion barrier, and then heats the braze for a time and at a temperature sufficient to form the braze into a bond holding the two or more parts together. The diffusion barrier is an oxidizable metal that forms either a homogeneous component of the braze, a heterogeneous component of the braze, a separate layer bordering the braze, or combinations thereof. The oxidizable metal is selected from the group Al, Mg, Cr, Si, Ni, Co, Mn, Ti, Zr, Hf, Pt, Pd, Au, lanthanides, and combinations thereof.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2010},

  month        = {4}

}

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Works referenced in this record:

Effects of atmospheres on bonding characteristics of silver and alumina
journal, July 2008

Kim, J.; Engelhard, M.; Pyungchoi, J.
International Journal of Hydrogen Energy, Vol. 33, Issue 14
https://doi.org/10.1016/j.ijhydene.2007.12.042

The effect of TiO2 on the wetting behavior of silver–copper oxide braze filler metals
journal, March 2006

Weil, K. Scott; Kim, Jin Yong; Hardy, John S.
Scripta Materialia, Vol. 54, Issue 6
https://doi.org/10.1016/j.scriptamat.2005.12.003

Ag–Al based air braze for high temperature electrochemical devices
journal, November 2007

Kim, J.; Hardy, J.; Weil, K.
International Journal of Hydrogen Energy, Vol. 32, Issue 16
https://doi.org/10.1016/j.ijhydene.2006.08.055

Dual-atmosphere tolerance of Ag–CuO-based air braze
journal, November 2007

Kim, J.; Hardy, J.; Weil, S.
International Journal of Hydrogen Energy, Vol. 32, Issue 16
https://doi.org/10.1016/j.ijhydene.2006.08.054

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Similar Records

Title: Diffusion barriers in modified air brazes

Abstract

Citation Formats

Effects of atmospheres on bonding characteristics of silver and alumina journal, July 2008

The effect of TiO2 on the wetting behavior of silver–copper oxide braze filler metals journal, March 2006

Ag–Al based air braze for high temperature electrochemical devices journal, November 2007

Dual-atmosphere tolerance of Ag–CuO-based air braze journal, November 2007

Effects of atmospheres on bonding characteristics of silver and alumina
journal, July 2008

The effect of TiO2 on the wetting behavior of silver–copper oxide braze filler metals
journal, March 2006

Ag–Al based air braze for high temperature electrochemical devices
journal, November 2007

Dual-atmosphere tolerance of Ag–CuO-based air braze
journal, November 2007