Method of producing an oxidation-resistant UO{HD 2 {B Fuel Body专利检索-热中子中子化学元素和化合物专利检索查询-专利查询网

Method of producing an oxidation-resistant UO{HD 2 {B Fuel Body

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专利汇可以提供Method of producing an oxidation-resistant UO{HD 2 {B Fuel Body专利检索，专利查询，专利分析的服务。并且1. A method of forming a UO2 fuel body resistive to oxidative attack, which comprises mixing UO2 and a ceramic oxide of relatively low thermal neutron absorption cross section, adding to the resulting mixture a small amount of a compound selected from the class consisting of alkali metal halides, and alkaline earth metal halides, and then forming a fuel body of the resulting composition.，下面是Method of producing an oxidation-resistant UO{HD 2 {B Fuel Body专利的具体信息内容。

权利要求

1. A METHOD OF FORMING A UO2 FUEL BODY RESISTIVE TO OXIDATIVE ATTACK, WHICH COMPRISES MIXING UO2 AND A CERAMIC OXIDE OF RELATIVELY LOW THERMAL NEUTRON ABSORPTION CROSS SECTION, ADDING TO THE RESULTING MIXTURE A SMALL AMOUNT OF A COMPOUND SELECTED FROM THE CLASS CONSISTING OF ALKALI METAL HALIDES AND ALKALINE EARTH METAL HALIDES, AND THEN FORMING A FUEL BODY OF THE RESULTING COMPOSITION.

2. A method of forming a fuel body which comprises mixing UO2 and a refractory oxide of relatively low thermal neutrOn absorption cross section selected from the class consisting of BeO, BeO-MgO, MgO, and Al2O3, adding to the resulting mixture a small amount of a compound selected from the class consisting of alkali metal halides and alkaline earth metal halides, and then forming a ceramic fuel body of the resulting composition.

3. A method of forming a UO2 fuel body which comprises mixing UO2 and BeO powders, adding to said mixture a small mount of a compound selected from the class consisting of alkali metal halides and alkaline earth metal halides, and then forming a UO2-BeO fuel body of the resulting mixture.

4. The method of claim 3 wherein approximately 0.1-1 wt. % of the last-named additive is added to said UO2-BeO fuel composition.

5. The method of claim 3 wherein said UO2-BeO fuel body is formed by hot pressing said resulting mixture in a non-oxidizing atmosphere.

6. A method of forming a UO2-BeO fuel body, which comprises mixing UO2 and BeO powders, adding to the resulting mixture approximately 0.1-1 wt. % of an alkaline earth metal fluoride, and then hot pressing the resulting composition in a non-oxidizing atmosphere to produce the UO2-BeO fuel body.

7. The method of claim 6 wherein said hot pressing is conducted under the approximate conditions of 1,400*-1,800* C, 2,000-6,000 psi, and 2 to 8 hours in an inert gas atmosphere.

8. The method of claim 6 wherein said UO2 comprises approximately 5-15 wt. % of the fuel body composition.

9. A method of forming a UO2-BeO fuel body which comprises forming a powder mixture consisting essentially of 5-15 wt. % UO2, approximately 0.25 wt. % alkaline earth metal fluoride, and the remainder BeO, forming an aqueous suspension of the resulting mixture, drying the resulting suspension, placing the dried powders in a die in an inert gas atmosphere, and then hot pressing said powders under the approximate conditions of 1,600* C and 2,000 psi for 4 hours.

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Method of producing an oxidation-resistant UO{HD 2 {B Fuel Body

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