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Method for manufacturing magnesium fluoride sintered compact, method for manufacturing neutron moderator, and neutron moderator
US2016326062A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016326062-A1 |
| Application number | US-201615216536-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 21, 2016 |
| Priority date | Jan 22, 2014 |
| Publication date | Nov 10, 2016 |
| Grant date | — |
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Abstract
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There are provided a method for manufacturing a magnesium fluoride sintered compact to be free from cracks and chipping and to have high relative density, a method for manufacturing a neutron moderator, and the neutron moderator. The method for manufacturing a magnesium fluoride sintered compact includes a powder filling process for filling a magnesium fluoride powder material into a die by tapping, and an intermediate body sintering (pulsed electric current sintering) process for performing pulsed electric current sintering for sintering the filled magnesium fluoride powder material while applying a pulsed electric current thereto, to obtain a magnesium fluoride sintered compact (intermediate body).
First claim
Opening claim text (preview).
What is claimed is: 1 . A method for manufacturing a magnesium fluoride sintered compact, the method comprising: filling a magnesium fluoride powder material into a die by tapping; and performing pulsed electric current sintering for sintering the filled magnesium fluoride powder material while applying a pulsed electric current thereto, to obtain a magnesium fluoride sintered compact. 2 . The method for manufacturing a magnesium fluoride sintered compact according to claim 1 , wherein, in the powder filling, the magnesium fluoride powder material is a high-purity material having a purity of 99 percent by mass or higher, and the rest thereof contains inevitable impurities. 3 . A method for manufacturing a neutron moderator, the method comprising: preparing a plurality of disc-shaped magnesium fluoride sintered compacts manufactured by the method for manufacturing a magnesium fluoride sintered compact according to claim 1 ; and layering and joining the disc-shaped magnesium fluoride sintered compacts to manufacture a neutron moderator. 4 . The method for manufacturing a neutron moderator according to claim 3 , wherein in the layering and joining, when the disc-shaped magnesium fluoride sintered compacts are used as intermediate bodies, at least one second intermediate layered body is layered, the second intermediate layered body being obtained by further drilling the intermediate bodies. 5 . The method for manufacturing a neutron moderator according to claim 4 , wherein in the layering and joining, when the disc-shaped magnesium fluoride sintered compacts are used as intermediate bodies, at least one third intermediate layered body is layered, the third intermediate layered body being obtained by tapering an outer periphery of the intermediate bodies. 6 . The method for manufacturing a neutron moderator according to claim 5 , wherein in the layering and joining, a neutron moderator is manufactured by layering a first intermediate layered body in which the intermediate bodies are layered, the second intermediate layered body, and the third intermediate layered body. 7 . A neutron moderator that moderates neutrons, the neutron moderator comprising an intermediate layered body in which a plurality of disc-shaped magnesium fluoride sintered compacts are layered.
Assignees
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Classifications
Antineoplastic agents · CPC title
Pressure sintering · CPC title
Magnesium oxides or oxide-forming salts thereof · CPC title
Neutrons · CPC title
Layered products essentially comprising ceramics, e.g. refractory products · CPC title
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- What does patent US2016326062A1 cover?
- There are provided a method for manufacturing a magnesium fluoride sintered compact to be free from cracks and chipping and to have high relative density, a method for manufacturing a neutron moderator, and the neutron moderator. The method for manufacturing a magnesium fluoride sintered compact includes a powder filling process for filling a magnesium fluoride powder material into a die by tap…
- Who is the assignee on this patent?
- Nippon Light Metal Co, Cancer Intelligence Care Sys Inc, Sinter Land Inc Ltd
- What technology area does this patent fall under?
- Primary CPC classification C04B35/553. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Nov 10 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).