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Magnox is an alloy—mainly of magnesium with small amounts of aluminium and other metals—used in cladding unenriched uranium metal fuel with a non-oxidising covering to contain fission products in nuclear reactors. Magnox is short for Magnesium non-oxidising. This material has the advantage of a low neutron capture cross section, but has two major disadvantages: *It limits the maximum temperature (to about 360 Celsius), and hence the thermal efficiency, of the plant. *It reacts with water, preventing long-term storage of spent fuel under water in spent fuel pools. The magnox alloy Al80 has a composition of 0.8% aluminium and 0.004% beryllium.〔http://adsabs.harvard.edu/abs/1963JNuM....8..153H〕 ==See also== * Magnox nuclear power reactors. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Magnox (alloy)」の詳細全文を読む スポンサード リンク
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