Sorting two-dimensional nanomaterials by thickness
US-9221064-B2 · Dec 29, 2015 · US
Preparation method for graphitizing carbon material
US9340429B1 · US · B1
| Field | Value |
|---|---|
| Publication number | US-9340429-B1 |
| Application number | US-201514699779-A |
| Country | US |
| Kind code | B1 |
| Filing date | Apr 29, 2015 |
| Priority date | Nov 25, 2014 |
| Publication date | May 17, 2016 |
| Grant date | May 17, 2016 |
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- Title
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Abstract
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A preparation method for graphitized carbon material is disclosed. The method may include placing a water-cooled copper mold having a water-cooling equipment at a bottom thereof in a vacuum arc melting furnace, wherein the water-cooled copper mold has disposed thereon a graphite crucible with carbon material therein and the graphite crucible has a tungsten rod placed thereon, with a lower terminal of the tungsten rod and the carbon material within the graphite crucible aligning. The method may further include flowing a gas after placing the vacuum arc melting furnace in a vacuum environment before heating the vacuum arc melting furnace to at least 3200 degrees Celsius to graphitize the carbon material and to form a fully graphitized carbon material after cooling.
First claim
Opening claim text (preview).
What is claimed is: 1. A graphitized carbon material preparation method, comprising: placing a water-cooled copper mold having a water-cooling equipment at a bottom thereof in a vacuum arc melting furnace, wherein the water-cooled copper mold has disposed thereon a graphite crucible with carbon material therein and the graphite crucible has a tungsten rod placed thereon, with a lower terminal of the tungsten rod and the carbon material within the graphite crucible aligning; and flowing a gas after placing the vacuum arc melting furnace in a vacuum environment, before heating the vacuum arc melting furnace to at least 3200 degrees Celsius to graphitize the carbon material and to form a fully graphitized carbon material after cooling. 2. The preparation method according to claim 1 , wherein the gas flown into the vacuum environment is argon or helium. 3. The preparation method according to claim 1 , wherein the lower terminal of the tungsten rod facing the graphite crucible is tip-shaped. 4. The preparation method according to claim 1 , wherein the water-cooled copper mold is equipped with a recess in which the graphite crucible is placed.
Assignees
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Classifications
- C01B31/04Primary
Chemistry & Metallurgy · mapped topic
- C01B32/205Primary
Preparation · CPC title
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- What does patent US9340429B1 cover?
- A preparation method for graphitized carbon material is disclosed. The method may include placing a water-cooled copper mold having a water-cooling equipment at a bottom thereof in a vacuum arc melting furnace, wherein the water-cooled copper mold has disposed thereon a graphite crucible with carbon material therein and the graphite crucible has a tungsten rod placed thereon, with a lower termi…
- Who is the assignee on this patent?
- Nat Univ Tsing Hua
- What technology area does this patent fall under?
- Primary CPC classification C01B31/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 17 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).