Inorganic composition article and crystallized glass
US-2022144691-A1 · May 12, 2022 · US
Inorganic composition article
US11807568B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11807568-B2 |
| Application number | US-202017436612-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 5, 2020 |
| Priority date | Mar 6, 2019 |
| Publication date | Nov 7, 2023 |
| Grant date | Nov 7, 2023 |
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Abstract
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To provide an inorganic composition article containing at least one kind selected from α-cristobalite and α-cristobalite solid solution as a main crystal phase, in which by mass % in terms of oxide, a content of a SiO2 component is 50.0% to 75.0%, a content of a Li2O component is 3.0% to 10.0%, a content of an Al2O3 component is 5.0% or more and less than 15.0%, and a total content of the Al2O3 component and a ZrO2 component is 10.0% or more, and a surface compressive stress value is 600 MPa or more.
First claim
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What is claimed is: 1. An inorganic composition article containing at least one kind selected from α-cristobalite and α-cristobalite solid solution as a main crystal phase, wherein by mass % in terms of oxide, a content of a SiO 2 component is 50.0% to 75.0%, a content of a Li 2 O component is 3.0% to 10.0%, a content of an Al 2 O 3 component is 5.0% or more and less than 15.0%, and a total content of the Al 2 O 3 component and a ZrO 2 component is more than 16.2%, and a surface compressive stress value is 600 MPa or more. 2. The inorganic composition article according to claim 1 , wherein by mass % in terms of oxide, a content of a ZrO 2 component is 1.2% to 10.0% or less, a content of a K 2 O component is 0% to 10.0%, and a content of a P 2 O 5 component is 0% to 10.0%. 3. The inorganic composition article according to claim 1 , wherein by mass % in terms of oxide, a content of a Na 2 O component is 0% to 10.0%, a content of a MgO component is 0% to 10.0%, a content of a CaO component is 0% to 10.0%, a content of a SrO component is 0% to 10.0%, a content of a BaO component is 0% to 10.0%, a content of a ZnO component is 0% to 10.0%, and a content of a Sb 2 O 3 component is 0% to 3.0%. 4. The inorganic composition article according to claim 1 , wherein by mass % in terms of oxide, a content of a Nb 2 O 5 component is 0% to 10.0%, a content of a Ta 2 O 5 component is 0% to 10.0%, and a content of a TiO 2 component is 0% or more and less than 7.0%. 5. The inorganic composition article according to claim 1 , wherein the total content of the Al 2 O 3 component and the ZrO 2 component is less than 18.3%. 6. The inorganic composition article according to claim 1 , wherein the surface compressive stress value is 680 MPa or more. 7. The inorganic composition article according to claim 1 , wherein the surface compressive stress value is 700 MPa or more.
Assignees
Inventors
Classifications
- C03C10/0027Primary
containing SiO2, Al2O3, Li2O as main constituents · CPC title
the liquid being a molten metal or a molten salt · CPC title
to perform ion-exchange between alkali ions (C03C21/005 takes precedence) · CPC title
Glasses, glazes or enamels with special properties · CPC title
- C03C10/0009Primary
containing silica as main constituent · CPC title
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- What does patent US11807568B2 cover?
- To provide an inorganic composition article containing at least one kind selected from α-cristobalite and α-cristobalite solid solution as a main crystal phase, in which by mass % in terms of oxide, a content of a SiO2 component is 50.0% to 75.0%, a content of a Li2O component is 3.0% to 10.0%, a content of an Al2O3 component is 5.0% or more and less than 15.0%, and a total content of the Al2O3…
- Who is the assignee on this patent?
- Ohara Kk
- What technology area does this patent fall under?
- Primary CPC classification C03C10/0027. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 07 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).