Extraction of properties of condensed outgassed species by thermogravimetric analysis

Terry R. Simpson; David F. Hall; Gidget K. Ternet

doi:10.1117/12.481648

11 September 2002 Extraction of properties of condensed outgassed species by thermogravimetric analysis

Terry R. Simpson, David F. Hall, Gidget K. Ternet

Proceedings Volume 4774, Optical System Contamination: Effects, Measurements, and Control VII; (2002) https://doi.org/10.1117/12.481648
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

This paper describes progress in the development of a new contamination prediction code, The Aerospace Satellite Contamination Model Evaluator (ASCME). This paper provides fitted parameters for Langmuire evaporation models of contaminants from 15 materials based upon kinetic testing according to the ASTM E1559-93 procedure. It is shown that the evaporation rate parameters, p₁ and p₂, derived from the E1559 TGA testing do not always agree with corresponding parameters calculated from published vapor pressure data. The uncertainty in extracting p₁ and p₂ parameters due to experimental scatter is estimated to be about ±5.6% and ±4%, respectively. It is demonstrated that m desorption profiles can vary significantly, depending upon the originating source material. It is shown that evaporation rate parameters depend strongly on the test method, static vs. kinetic.

Citation Download Citation

Terry R. Simpson, David F. Hall, and Gidget K. Ternet "Extraction of properties of condensed outgassed species by thermogravimetric analysis", Proc. SPIE 4774, Optical System Contamination: Effects, Measurements, and Control VII, (11 September 2002); https://doi.org/10.1117/12.481648

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available