| 摘要 |
<p>An LAS-type float glass, which is substantially free of AS 2 O 3 and/or Sb 2 O 3 and precipitates a ²-quartz solid solution or a ²-spodumene solid solution as a main crystal by heat treatment, wherein, when C 1 [mass%] represents the content of SnO 2 at a glass surface, C 0 [mass%] represents the content of SnO 2 at a depth of 0.5 mm from the glass surface, and k [mass%/mm] represents an SnO 2 concentration gradient defined by k=(C 1 -C 0 )/0.5, the LAS-type crystallized glass satisfies relationships of K‰¤2 and C 0 ‰¤0.8 with respect to at least one surface thereof.</p> |
