Method for adhesion of metal films to ceramics

Title: Method for adhesion of metal films to ceramics

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Abstract

Methods for making strongly bonded metal-ceramic materials are disclosed. The methods include irradiating a portion of the surface of the ceramic material with a pulsed ultraviolet laser having an energy density sufficient to effect activation of the irradiated surface of the ceramic material so that adhesion of metals subsequently deposited onto the irradiated surface is substantially increased. Advantages of the invention include (i) the need for only a small number of laser pulses at relatively low focused energy density, (ii) a smoother substrate surface, (iii) activation of the laser-treated surface which provides a chemical bond between the surface and a metal deposited thereon, (iv) only low temperature annealing is required to produce the strong metal-ceramic bond; (v) the ability to obtain strong adhesion between ceramic materials and oxidation resistant metals; (vi) ability to store the laser treated ceramic materials for later deposition of metals thereon. 7 figs.

Inventors:: Lowndes, D.H.; Pedraza, A.J.; DeSilva, M.J.; Kumar, R.A.

Issue Date:: 1997-12-30

Research Org.:: Lockheed Martin Energy Syst Inc

Sponsoring Org.:: USDOE, Washington, DC (United States)

OSTI Identifier:: 563696

Patent Number(s):: 5,703,341

Application Number:: PAN: 8-443,275

Assignee:: Lockheed Martin Energy Systems, Inc., Oak Ridge, TN (United States) PTO; SCA: 360601; PA: EDB-98:015411; SN: 98001896293

DOE Contract Number:: AC05-84OR21400

Resource Type:: Patent

Resource Relation:: Other Information: PBD: 30 Dec 1997

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; CERAMICS; METALS; JOINING; ADHESION; LASER RADIATION; COMPOSITE MATERIALS; SURFACE TREATMENTS

Citation Formats


                    Lowndes, D.H., Pedraza, A.J., DeSilva, M.J., and Kumar, R.A. Method for adhesion of metal films to ceramics.  United States: N. p., 1997. 
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                    Lowndes, D.H., Pedraza, A.J., DeSilva, M.J., & Kumar, R.A. Method for adhesion of metal films to ceramics.  United States.

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                    Lowndes, D.H., Pedraza, A.J., DeSilva, M.J., and Kumar, R.A. Tue .  
        "Method for adhesion of metal films to ceramics".  United States.

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@article{osti_563696,

  title        = {Method for adhesion of metal films to ceramics},

  author       = {Lowndes, D.H. and Pedraza, A.J. and DeSilva, M.J. and Kumar, R.A.},

  abstractNote = {Methods for making strongly bonded metal-ceramic materials are disclosed. The methods include irradiating a portion of the surface of the ceramic material with a pulsed ultraviolet laser having an energy density sufficient to effect activation of the irradiated surface of the ceramic material so that adhesion of metals subsequently deposited onto the irradiated surface is substantially increased. Advantages of the invention include (i) the need for only a small number of laser pulses at relatively low focused energy density, (ii) a smoother substrate surface, (iii) activation of the laser-treated surface which provides a chemical bond between the surface and a metal deposited thereon, (iv) only low temperature annealing is required to produce the strong metal-ceramic bond; (v) the ability to obtain strong adhesion between ceramic materials and oxidation resistant metals; (vi) ability to store the laser treated ceramic materials for later deposition of metals thereon. 7 figs.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1997},

  month        = {12}

}

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