Electrically conductive thin films
US-2015376020-A1 · Dec 31, 2015 · US
Mechanochemical synthesis of hexagonal OsB2
US9701542B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9701542-B2 |
| Application number | US-201414175697-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 7, 2014 |
| Priority date | Jan 16, 2013 |
| Publication date | Jul 11, 2017 |
| Grant date | Jul 11, 2017 |
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Abstract
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The presently disclosed and/or claimed inventive concept(s) relates generally to hexagonal osmium boride, OsB 2 , and methods of producing the same. In one non-limiting embodiment, hexagonal OsB 2 is produced by mechanochemical synthesis of osmium and boron in a high energy ball mill.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of producing a bulk form of OsB 2 wherein the OsB 2 has a hexagonal lattice structure, comprising the steps of (i) mechanochemically reacting osmium and boron for at least 6 hours to form a hexagonal OsB 2 powder and (ii) sintering the hexagonal OsB 2 powder to form a sintered bulk form of OsB 2 . 2. The method of claim 1 , wherein the osmium and boron are mechanochemically reacted in a high energy ball mill. 3. The method of claim 1 , wherein the osmium and boron are in the form of powders. 4. The method of claim 3 , wherein the osmium powder and boron powder are added at a molar ratio in a range of from about 1:2 to about 1:3 osmium powder to boron powder. 5. The method of claim 1 , wherein the osmium and boron powders are mechanochemically reacted for at least 20 hours. 6. The method of claim 1 , wherein the hexagonal OsB 2 powder is sintered by high temperature Spark Plasma Sintering at a temperature of at least about 1550° C. and at a pressure of at least about 50 MPa. 7. The method of claim 1 , wherein the osmium and boron powders are mechanochemically reacted for at least 18 hours.
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Classifications
Inorganic compounds or compositions · CPC title
by solid state reactions or multi-phase diffusion · CPC title
- C01B35/04Primary
Metal borides · CPC title
submicron sized, i.e. from 0,1 to 1 micron · CPC title
Phases present in the sintered or melt-cast ceramic products other than the main phase · CPC title
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Frequently asked questions
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- What does patent US9701542B2 cover?
- The presently disclosed and/or claimed inventive concept(s) relates generally to hexagonal osmium boride, OsB 2 , and methods of producing the same. In one non-limiting embodiment, hexagonal OsB 2 is produced by mechanochemical synthesis of osmium and boron in a high energy ball mill.
- Who is the assignee on this patent?
- Univ Central Florida Res Found Inc
- What technology area does this patent fall under?
- Primary CPC classification C01B35/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 11 2017 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).