Multi-Method Characterization of Compression Set in Fluorosilicone O-Rings
| Autor: | Robert S. Maxwell, Robert Bernstein, Elizabeth A. Glascoe, Stephen J. Harley, Brian P. Mayer, Gregory Von White Ii |
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| Rok vydání: | 2014 |
| Předmět: |
010302 applied physics
Void (astronomy) Materials science Analytical chemistry Compression set Thermodynamics Sorption 02 engineering and technology Water sorption 021001 nanoscience & nanotechnology 01 natural sciences Electronic Optical and Magnetic Materials Void space 0103 physical sciences Void volume Multi method 0210 nano-technology |
| Zdroj: | Silicon. 11:2225-2231 |
| ISSN: | 1876-9918 1876-990X |
| DOI: | 10.1007/s12633-014-9255-6 |
| Popis: | Fluorosilicone o-rings with varying levels of compression set were investigated with a variety of methods. Low field NMR experiments were able to elucidate if the sample had taken a compression set; however, this technique did not have the sensitivity to quantify the relative level of compression set of the o-ring. Water sorption isotherms probe the interior void structure through void space occupation and while complex, the sorption isotherms indicate a systematic loss of void volume with increasing compression set. Similarly, variable temperature 129Xe NMR experiments indicate an elimination of macroscopic void space with increasing compression. The NMR techniques, being noninvasive, have a unique ability to assess the service status of an o-ring in real time. |
| Databáze: | OpenAIRE |
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