gas swell 中文意思是什麼
gas swell
解釋
窩留空氣膨脹-
Above 450, the formation of low density u ( al, si ) 3 phase, together with the release of the impurity gas and fragmentation of u3si2 particles, will cause fuel meat to swell, al matrix to crack and u3si2 particles to invade to clad. as a result, the thickness of the meat increased, the thickness of clad decreased and the deformation of fuel plates increased, and the leakage probability of the radioactive mass increased reasonably
同時，由於芯體膨脹及鈾硅顆粒碎裂的綜合作用，使u _ 3si _ 2顆粒向包殼侵入，最終使燃料板芯體厚度增加較大，芯體及燃料的體積也顯著增加，包殼厚度減薄；高溫將加速芯體u _ 3si _ 2顆粒碎裂、芯體開裂、包殼以及燃料板變形，從而使燃料芯體與包殼脫開，最終可能導致放射性物質泄漏。
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