Title page for ETD etd-07262006-101426


Type of Document Master's Thesis
Author Lynch, Matthew Earl
Author's Email Address malynch1@vt.edu
URN etd-07262006-101426
Title The Effect of Microwaves on Aqueous Corrosion of Glass
Degree Master of Science
Department Materials Science and Engineering
Advisory Committee
Advisor Name Title
Clark, David E. Committee Chair
Pickrell, Gary R. Committee Member
Suchicital, Carlos T. A. Committee Member
Keywords
  • glass
  • corrosion
  • leaching
  • microwave
  • migration
Date of Defense 2006-07-24
Availability unrestricted
Abstract
Glass corrodes in aqueous environments. The corrosion process is well-understood for many circumstances involving long periods of time at room temperature as well as processes that involve conventional heating, but the effect of microwave energy on glass corrosion has never been fully investigated. It was suspected that microwaves may alter or accelerate the aqueous corrosion processes that occur in glass which contribute to migration into foods or other materials. Lithium disilicate (Li2O-2SiO2) and commercial soda-lime glass were corroded using both conventional and microwave heating in this study. The results did not clearly show substantial differences in corrosion under the test conditions, but leave open the possibility of an altered mechanism in some circumstances. These findings suggest the need for testing at a lower microwave frequency, specifically 2.45 GHz.
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