Oxygen Tracer Diffusion in Vitreous Silica |
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Authors: | Joseph D Kalen Rethia S Boyce James D Cawley |
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Affiliation: | Department of Materials Science and Engineering, The Ohio State University, Columbus, Ohio 43210 |
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Abstract: | Oxygen diffusion in vitreous silica glass is studied using the gas exchange technique. The tracer concentration profiles are consistent with a model based on two mechanisms, one network and the other interstitial. These processes are coupled through limited network–interstitial exchange. Nuclear reaction analysis and secondary ion mass spectrometry techniques are performed and compared. These results are compared to experiments on transport in thin silica films grown on single-crystal silicon. |
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Keywords: | silica diffusion oxygen modeling films |
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