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A preliminary study of ester oxidation on an aluminum surface using chemiluminescenceThe oxidation characteristics of a pure ester (trimethyolpropane triheptanoate) were studied by using a chemiluminescence technique. Tests were run in a thin-film micro-oxidation apparatus with an aluminum alloy catalyst. Conditions included a pure oxygen atmosphere and a temperature range of 176 to 206 C. Results indicated that oxidation of the ester (containing 10 to the minus 3rd power M diphenylanthracene as an intensifier) was accompanied by emission of light. The maximum intensity of light emission (I sub max) was a function of the amount of ester, the concentration of intensifier, and the test temperature. The induction period or the time to reach one-half of maximum intensity (t sub 1/2) was an inverse function of test temperature. Decreases in light emission at the later stages of a test were caused by depletion of the intensifier.
Document ID
19870050414
Document Type
Reprint (Version printed in journal)
Authors
Jones, William R., Jr.
(NASA Lewis Research Center Cleveland, OH, United States)
Meador, Michael A.
(NASA Lewis Research Center Cleveland, OH, United States)
Morales, Wilfredo
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 13, 2013
Publication Date
April 1, 1987
Publication Information
Publication: ASLE Transactions
Volume: 30
ISSN: 0569-8197
Subject Category
Nonmetallic Materials
Distribution Limits
Public
Copyright
Other
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