Crucible with reaction preventing layer made of advanced material and method of melting and casting metal fuel using the same
The present invention provides a crucible for melting and casting a metal fuel, which includes a reaction preventing layer including: LaYO 3 ; or ZrO 2 containing a Y 2 O 3 stabilizer at 5 to 10 wt %, and a method of melting and casting a metal fuel using the same.
1. A crucible for melting and casting a metal fuel, comprising a reaction preventing layer including LaYO 3 .
2. The crucible of claim 1 , wherein the reaction preventing layer has a density of 80% or more of a theoretical density of the reaction preventing layer.
3. The crucible of claim 1 , wherein a content of LaYO 3 of the reaction preventing layer is 90% or more.
4. The crucible of claim 1 , wherein the reaction preventing layer is formed on a surface of the crucible in contact with a melt of the metal fuel.
5. The crucible of claim 1 , wherein the reaction preventing layer has a thickness of 10 μm to 5 mm.
6. The crucible of claim 1 , further comprising a sacrificial layer formed on the reaction preventing layer.
7. A method of melting and casting a metal fuel, comprising the steps of:
(a) manufacturing a reaction preventing layer including LaYO 3 ;
(b) applying the reaction preventing layer to a crucible; and
(c) inputting a metal fuel into the crucible with the reaction preventing layer and then melting and casting the metal fuel.
8. The method of claim 7 , wherein the manufacture in the step (a) is performed by one or more methods selected from the group consisting of spark plasma sintering, post-cold isostatic pressing (CIP) sintering, and post-hot isostatic pressing (HIP) sintering.
9. The method of claim 7 , wherein the melting and casting in the step (c) are performed by applying a pressure of 1.2 bar to 5 bar at 1,000° C. to 1,800° C.