Low-temperature dabrication of α-Al2O3 based composite coating as tritium permeation barrier

来源 :第13届中日双边先进能源系统和聚变裂变工程材料会议(CIS-13) | 被引量 : 0次 | 上传用户:tang18
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  As one of the most promising tritium permeation barriers,α-Al2O3 has attracted increasing attention in the field of nuclear fusion reactors,because of its high chemical stability and outstanding ability to suppress hydrogen isotope permeation.However,the products manufactured by conventional processes were often composed of γ-Al2O3,and the fabrication of a more desired thermally stable α-Al2O3 phase usually requires a very high temperature that the steel substrate cannot withstand.Therefore,it is an urgent need to develop new techniques for producing α-Al2O3 based coatings at low temperature condition.
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近年研究表明,宽带隙半导体与窄带隙半导体形成的多元金属硫化物固溶体可以通过调节其组分及形貌实现能带调控,使其吸收边发生红移,实现可见光响应,提高光催化反应性能。另外,通过掺杂、复合形成异质结等方式,可以进一步地提高催化剂的性能。
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