PENGARUH SERBUK U-Mo HASIL PROSES MEKANIK DAN HYDRIDE – DEHYDRIDE – GRINDING MILL TERHADAP KUALITAS PELAT ELEMEN BAKAR U-Mo/Al
Journal: Urania Jurnal Ilmiah Daur Bahan Bakar Nuklir (Vol.21, No. 2)Publication Date: 2015-06-30
Authors : Supardjo Supardjo; Agoeng Kadarjono; Boybul Boybul;
Page : 47-56
Keywords : U-7Mo alloy; U-7Mo powder; U-7Mo/Al fuel core; U-7Mo/Al fuel plates; dispersion fuel;
Abstract
INFLUENCE OF U-Mo POWDER BY MECHANICAL AND HYDRIDE - DEHYDRIDE - GRINDING MILL PROCESS RESULT OF U-Mo / Al FUEL PLATE QUALITY. Research of U-7Mo/Al fuel type plate is done in order to develop U3Si2/Al fuel to get a new fuel that has a higher uranium density, stable for use as fuel in the reactor and is easily done if the reprocessed. The scope of the research includes manufacture: U-7Mo alloy with smelting techniques, pulverizing U-7Mo to be filed and hydride– dehydride–grinding mill, U-7Mo/Al fuel core with the technique of compacting at a pressure of 20 bar, and U-7Mo/Al fuel plate with technique of hot rolling at a temperature of 425oC. The U-7Mo alloy results smelting process quite homogeneous, the density of 16.34 g/cm3 and is tenacious, then made powder by means of filed and hydride–dehydride–grinding mill. The U-7Mo powder shaped flat results miserly process, contaminants Fe is high enough, whereas powder process results hydride- dehydride-grinding mill, tend equiaxial with low contaminants. The second type of U-7Mo powder is used as a raw material for making U-7Mo/Al fuel core and U-7Mo/Al fuel plate with 7 gU/cm3 uranium density and obtained product with almost the same quality. The U-7Mo/Al fuel core test results measuring 25 x 15 x 3.15 ± 0.05 mm, there is no defect/crack, U-7Mo distribution in the matrix is quite homogeneous and there is no grouping/agglomeration U-7Mo dimension >1 mm. The U-7Mo/Al fuel plate outcome rolling with a final thickness of 1.45 mm, has a thickness of 0.60 mm and a mean meat cladding thickness of 0.4 mm, and there is one point of measurement of cladding with a thickness of 0.15 mm. By comparing the use of both types of U-7Mo powders the U-7Mo/Al fuel core and U-7Mo/Al fuel plate produced has almost the same quality. However, the use of U-7Mo powder results hydride– dehydride–grinding mill process is better because the workmanship is faster and impurities in the powders can be minimized.
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