Increasing zinc sulfide hardness
US-9562286-B2 · Feb 7, 2017 · US
Increasing zinc sulfide hardness
US9914996B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9914996-B2 |
| Application number | US-201615286668-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 6, 2016 |
| Priority date | Sep 26, 2013 |
| Publication date | Mar 13, 2018 |
| Grant date | Mar 13, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The hardness of zinc sulfide is increased by adding selective elements within a specified range to the crystal lattice of the zinc sulfide. The increased hardness over conventional zinc sulfide does not substantially compromise the optical properties of the zinc sulfide. The zinc sulfide may be used as a protective coating for windows and domes.
First claim
Opening claim text (preview).
What is claimed is: 1. A composition comprising water clear zinc sulfide and 1.5 molar % to 3 molar % of silicon. 2. The composition of claim 1 , wherein the composition has a transmission in the LWIR range of 8 μm to 12 μm. 3. An article comprising a substrate and one or more layers of a composition comprising water clear zinc sulfide and 1.5 molar % to 3 molar % of silicon. 4. The article of claim 3 , wherein the substrate is a dome or a window. 5. The article of claim 3 , wherein the article has a transmission in the LWIR range of 8 μm to 12 μm.
Assignees
Inventors
Classifications
- C23C16/306Primary
AII BVI compounds, where A is Zn, Cd or Hg and B is S, Se or Te · CPC title
Sulfides, selenides, or tellurides · CPC title
on temporary substrates, e.g. substrates subsequently removed by etching · CPC title
Sulfides · CPC title
with other inorganic material (C03C17/34, C03C17/44 take precedence) · CPC title
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Frequently asked questions
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- What does patent US9914996B2 cover?
- The hardness of zinc sulfide is increased by adding selective elements within a specified range to the crystal lattice of the zinc sulfide. The increased hardness over conventional zinc sulfide does not substantially compromise the optical properties of the zinc sulfide. The zinc sulfide may be used as a protective coating for windows and domes.
- Who is the assignee on this patent?
- Rohm & Haas Elect Mat, Dow Global Technologies Llc
- What technology area does this patent fall under?
- Primary CPC classification C23C16/306. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 13 2018 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).