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Title: Method for adhesion of metal films to ceramics

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:
; ; ;
Issue Date:
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. Web.
Lowndes, D.H., Pedraza, A.J., DeSilva, M.J., & Kumar, R.A. Method for adhesion of metal films to ceramics. United States.
Lowndes, D.H., Pedraza, A.J., DeSilva, M.J., and Kumar, R.A. Tue . "Method for adhesion of metal films to ceramics". United States.
@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}
}