科技报告详细信息
Ion irradiation effects in the Ceramic Composite MgTiO3Er2Ti2O7.
Montaner, E. P. ; Valdez, J. A. ; Sickafus, K. E.
Technical Information Center Oak Ridge Tennessee
关键词: Ceramics;    Irradiation;    Composite materials;    Actinides;    High level radioactive wastes;   
RP-ID  :  DE2000763042
学科分类:工程和技术(综合)
美国|英语
来源: National Technical Reports Library
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【 摘 要 】

We have developed a new ceramic-ceramic composite consisting of the mineral geikielite as a matrix phase and the mineral pyrochlore as a minor, second phase. We are investigating this material for use as a possible nuclear waste-form for the immobilization and storage of surplus actinides or high-level radioactive wastes. We performed radiation damage experiments by irradiating composite MgTiO(sub 3)-Er(sub 2)Ti(sub 2)0(sub 7)samples along with single crystals of MgTiO(sub 3) and Er(sub 2)Ti(sub 2)0(sub 7) (at a temperature of about 120K) with 350 keV Xe(sup plus plus) ions to ion fluences. Irradiated samples were analyzed using transmission electron microscopy (TEM) and nanoindentation techniques.

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