방사성폐기물 관리 분야 | Glass waste form for I
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2017.02.07 / 2,824관련링크
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Silver tellurite glasses with melting temperatures
< 700 °C were prepared to immobilize the 129I that normally
volatilizes during high-temperature melting. Glasses have densities of 6.31 ±
0.1 g/cm3 and transition temperatures of 165 ± 3 °C that provide
thermal stability at the disposal site. Iodine waste loading in glasses was as
high as 12.64 wt.% of all metallic elements and 11.21 wt.% including oxygen.
Normalized elemental releases obtained from the product consistency test were
well below US regulation of 2 g/m2. Iodines are surrounded by four
Ag+ ions forming [Ag4I]3+ units that are further
connected to tellurite network through bonds with non-bridging oxygens.
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