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US 2022/0289618 A1Published application
Glass and method for manufacturing the same
AssigneeNational Institute of Advanced Industrial Science and Technology
InventorsKenji SHINOZAKI, Tomoko AKAI
Life of this patent
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Abstract
A glass includes a first glass portion and a second glass portion. The first glass portion has a higher ion packing density than the second glass portion (has a composition that forms a glass in which, out of plastic deformation characteristics, plastic flow is dominant). The second glass has a lower ion packing density than the first glass portion (has a composition that forms a glass in which, out of the plastic deformation characteristics, densification is dominant).
Claims17
A glass, comprising:
- a first glass portion;
- and a second glass portion, wherein
- the first glass portion has a composition that forms a glass having a property that, out of plastic deformation characteristics, plastic flow is more dominant than in the second glass portion, and
- the second glass portion has a composition that forms a glass having a property that, out of the plastic deformation characteristics, densification is more dominant than in the first glass portion.
1 more element
A method for manufacturing a glass, comprising the steps of:
- preparing a precursor of a first glass portion in which, of a plastic flow characteristic and a densification characteristic that are plastic deformation characteristics, the plastic flow characteristic is dominant;
- preparing a precursor of a second glass portion in which the densification characteristic is dominant;
- mixing the precursor of the first glass portion and the precursor of the second glass portion to obtain a mixture;
- and
- heat treating the mixture under a condition that the first and second glass portions remain in the glass.
2 more elements
Dependencies are inferred from the claim text.