Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 61: Issue 1
Thermal Decomposition of Silver Flake Lubricants
Authors:
D. Lu Georgia Institute of Technology School of Materials Science and Engineering and Packaging Research Center Atlanta GA 30332-0245 USA Atlanta GA 30332-0245 USA

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C. Wong Georgia Institute of Technology School of Materials Science and Engineering and Packaging Research Center Atlanta GA 30332-0245 USA Atlanta GA 30332-0245 USA

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Pages:
3–12
Online Publication Date:
02 Nov 2004
Publication Date:
01 Jul 2000
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1010112318648
Keywords:
conductive adhesive; fatty acid salt; lubricant; mechanism; silver flake; thermal decomposition
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Abstract  

There is a thin layer of organic lubricant on commercial silver flake surfaces. This lubricant layer is a fatty acid salt formed between a fatty acid and silver flake surfaces. Thermal decomposition behavior of the silver flake lubricant is investigated in this study. The heat flow and mass loss of a silver flake are studied using differential scanning calorimetry (DSC) and thermogravimetry (TG), respectively. The silver flake is also oven heated to different isothermal temperatures (150,190, 250 and 300C) for one h. Then chemical nature of the lubricant of the heated silver flake sample are studied using diffuse reflectance infrared Fourier transfer spectroscopy (DRIFTS). Based on the results, a mechanism of thermal decomposition of the silver flake lubricant is proposed. It is found that decomposition of the lubricant - the fatty acid salt -includes the release of the fatty acid, formation of short chain acids by decomposition of hydrocarbon moiety of the fatty acid, and formation of alcohols through decarbonation of the short chain acids.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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