Crystallized glass
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United States of America Patent
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Aug 16, 2016
Grant Date -
Apr 30, 2015
app pub date -
Oct 30, 2014
filing date -
Oct 31, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
To provide a crystallized glass capable of attaining the same clarification effect as in the composition containing an arsenic component and an antimony component even in the case of having the composition containing no arsenic component, while maintaining various physical properties peculiar to a Li2O—Al2O3—SiO2-based crystallized glass. Disclosed is a crystallized glass which is characterized by containing a predetermined amount of Li2O, Al2O3, and SiO2 components (on an oxide basis), and containing a predetermined amount of BaO component (on an oxide basis) and the like. This crystallized glass preferably contains β-quartz and/or β-quartz solid solution as main crystal phase(s), an average crystal particle size of the main crystal phase(s) being preferably within a range between 5 and 200 nm.
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