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Porous metallic materials and method of production thereof
US8968641B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8968641-B2 |
| Application number | US-56964105-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 19, 2005 |
| Priority date | May 29, 2004 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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The present invention relates to a process for producing porous metallic materials comprising the steps of: (a) miming metallic particles with a carbonate additive and a binder, wherein the quantity of carbonate additive in the mixture is in the range of 40 to 90 vol % and compressing the mixture beyond the yield strength of the metallic particles; (b) heating the mixture to a first temperature sufficient to evaporate the binder; (c) heating and maintaining the temperature of the mixture to a second temperature sufficient to sinter the metallic particles but insufficient to decompose or melt the carbonate additive; (d) removing the carbonate additive from the sintered porous metallic material; and optionally (e) heating and maintaining the temperature of the porous metallic material to a third temperature greater than the second temperature so as to enhance the sintering. The present invention also relates to metallic materials produced by such a process.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for producing porous metallic materials comprising the steps of: a. homogeneously mixing a composition consisting of metallic particles, a carbonate additive and a binder, wherein the metallic particles have a higher melting point than the melting or decomposition point of the carbonate additive and the quantity of carbonate additive in the mixture is in the range of 40 to 90 vol % and compressing the mixture in a mould beyond the yield stren…
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- B22F3/1134Primary
Operations & Transport · mapped topic
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- What does patent US8968641B2 cover?
- The present invention relates to a process for producing porous metallic materials comprising the steps of: (a) miming metallic particles with a carbonate additive and a binder, wherein the quantity of carbonate additive in the mixture is in the range of 40 to 90 vol % and compressing the mixture beyond the yield strength of the metallic particles; (b) heating the mixture to a first temperature…
- Who is the assignee on this patent?
- Zhao Yuyuan, Univ Liverpool
- What technology area does this patent fall under?
- Primary CPC classification B22F3/1134. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 03 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).