Method for adhesion of metal films to ceramics
Abstract
Methods for making strongly bonded metal-ceramic materials. 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.
- Inventors:
-
- Knoxville, TN
- Oak Ridge, TN
- Ithaca, NY
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 871297
- Patent Number(s):
- 5703341
- Assignee:
- Lockheed Martin Energy Systems, Inc. (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; adhesion; metal; films; ceramics; methods; strongly; bonded; metal-ceramic; materials; irradiating; portion; surface; ceramic; material; pulsed; ultraviolet; laser; energy; density; sufficient; effect; activation; irradiated; metals; subsequently; deposited; substantially; increased; advantages; pulses; relatively; focused; ii; smoother; substrate; iii; laser-treated; provides; chemical; bond; thereon; temperature; annealing; required; produce; strong; ability; obtain; oxidation; resistant; store; treated; deposition; metal films; chemical bond; metal film; substantially increased; energy density; ceramic material; laser pulses; laser pulse; ceramic materials; substrate surface; deposited thereon; ultraviolet laser; metal deposited; oxidation resistant; subsequently deposited; substantially increase; temperature annealing; temperature anneal; pulsed ultraviolet; metal deposit; resistant metal; ceramic mater; treated ceramic; subsequently deposit; density sufficient; /219/
Citation Formats
Lowndes, Douglas H, Pedraza, Anthony J, DeSilva, Melvin J, and Kumar, Rajagopalan A. Method for adhesion of metal films to ceramics. United States: N. p., 1997.
Web.
Lowndes, Douglas H, Pedraza, Anthony J, DeSilva, Melvin J, & Kumar, Rajagopalan A. Method for adhesion of metal films to ceramics. United States.
Lowndes, Douglas H, Pedraza, Anthony J, DeSilva, Melvin J, and Kumar, Rajagopalan A. Wed .
"Method for adhesion of metal films to ceramics". United States. https://www.osti.gov/servlets/purl/871297.
@article{osti_871297,
title = {Method for adhesion of metal films to ceramics},
author = {Lowndes, Douglas H and Pedraza, Anthony J and DeSilva, Melvin J and Kumar, Rajagopalan A},
abstractNote = {Methods for making strongly bonded metal-ceramic materials. 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1997},
month = {Wed Jan 01 00:00:00 EST 1997}
}
Works referenced in this record:
Role of interfacial thermal resistance and laser energy density during laser processing of copper-sapphire couples
journal, April 1992
- Godbole, M. J.; Pedraza, A. J.; Lowndes, D. H.
- Journal of Materials Research, Vol. 7, Issue 4