Electrically conductive thin films
US-2015376020-A1 · Dec 31, 2015 · US
Mechanochemical synthesis of hexagonal OsB2
US9926204B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9926204-B2 |
| Application number | US-201414157216-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 16, 2014 |
| Priority date | Jan 16, 2013 |
| Publication date | Mar 27, 2018 |
| Grant date | Mar 27, 2018 |
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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 composition, comprising OsB 2 having a hexagonal lattice structure, wherein the OsB 2 comprises a P6 3 /mmc space group. 2. The composition of claim 1 , wherein the hexagonal OsB 2 comprises unit cell dimensions of: (i) a=b=2.911 Å and c=7.392 Å; and (ii) α=β=90°, γ=120°. 3. The composition of claim 1 , wherein the hexagonal OsB 2 is in the form of a powder. 4. The composition of claim 3 , wherein the hexagonal OsB 2 is stable after annealing the hexagonal OsB 2 for at least 6 days at a temperature of at least 1050° C. 5. The composition of claim 3 , wherein the hexagonal OsB 2 is stable at temperatures in a range of from about −223° C. to about 875° C. 6. The composition of claim 5 , wherein the hexagonal OsB 2 undergoes negative thermal expansion at a temperature range of from about 300° C. to about 500° C. in the direction of the a lattice parameter.
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Classifications
Crystal structural characteristics, e.g. symmetry · CPC title
nanometer sized, i.e. below 100 nm · CPC title
based on refractory 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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- What does patent US9926204B2 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 Mar 27 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).