TRANSPARENT ARTICLES AND METHODS OF MAKING TRANSPARENT ARTICLES
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United States of America Patent
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May 16, 2019
app pub date -
Nov 10, 2017
filing date -
Nov 10, 2017
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Abstract
A method of making a transparent article includes mixing an oxygen source, a nitrogen source, a magnesium source, a silicon source and a calcium source. The oxygen source, the nitrogen source, the magnesium source, the silicon source, and the calcium source are milled and heated to form a molten oxynitride glass modified by calcium and magnesium. The molten oxynitride glass modified by calcium and magnesium is then cooled to form a transparent body having ballistic resistance with a level of performance satisfying Level IV of National Institute of Justice Standard 0108.01. Transparent articles having transparent bodies formed from the oxynitride glass are also described.
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