Precursor sol-gel solution, electromechanical transducer element, liquid droplet discharge head, and inkjet recording apparatus
US-2015307403-A1 · Oct 29, 2015 · US
Reactor internal structure and method of manufacturing the same
US9850581B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9850581-B2 |
| Application number | US-201615048227-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 19, 2016 |
| Priority date | Dec 12, 2008 |
| Publication date | Dec 26, 2017 |
| Grant date | Dec 26, 2017 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A coating of niobium oxide, zirconium titanate, or nickel titanate is formed on at least a part of a surface of a jet pump member constituting a jet pump serving as a reactor internal structure of a boiling water reactor. Further, a solution containing, e.g., a niobium compound is applied to at least a part of the surface of the jet pump member constituting the jet pump, and the jet pump member coated with the solution is heat-treated to form a coating of, e.g., niobium oxide. With this configuration, the jet pump member constituting the jet pump of the boiling water reactor is provided such that deposition of crud can be sufficiently suppressed on the jet pump member.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of manufacturing a reactor internal structure, comprising the steps of: applying a titanium-zirconium compound solution to at least a part of a surface of the reactor internal structure constituting a boiling water reactor, the part being exposed to a reactor water; and forming a coating of amorphous zirconium titanate by heat-treating the exposed part of the surface of the reactor internal structure coated with the solution, so that the surface of the reactor internal structure has a negative surface potential. 2. The method of manufacturing a reactor internal structure according to claim 1 , wherein the titanium-zirconium compound solution has a one-to-one atomic ratio of titanium to zirconium. 3. The method of manufacturing a reactor internal structure according to claim 1 , wherein the heat treatment is performed at 80° C. to 600° C. 4. The method of manufacturing a reactor internal structure according to claim 1 , wherein the coating has a thickness of 0.01 μm to 10 μm.
Assignees
Inventors
Classifications
displacing liquids, e.g. containing solids, or liquids and elastic fluids · CPC title
Cross-Sectional Technologies · mapped topic
- C23C18/1216Primary
Metal oxides (C23C18/1212 takes precedence) · CPC title
Coating not provided for in groups C23C2/00 - C23C24/00 · CPC title
specially adapted for liquids (decontamination of liquids G21F9/04) · CPC title
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- What does patent US9850581B2 cover?
- A coating of niobium oxide, zirconium titanate, or nickel titanate is formed on at least a part of a surface of a jet pump member constituting a jet pump serving as a reactor internal structure of a boiling water reactor. Further, a solution containing, e.g., a niobium compound is applied to at least a part of the surface of the jet pump member constituting the jet pump, and the jet pump member…
- Who is the assignee on this patent?
- Toshiba Kk
- What technology area does this patent fall under?
- Primary CPC classification C23C18/1216. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 26 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).