Defects induced by electron irradiation in hollandite ceramics, specific radioactive cesium-host wasteforms: a 57Fe Mössbauer study
Defects induced by electron irradiation in hollandite ceramics, specific radioactive cesium-host wasteforms: a 57Fe Mössbauer study
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镁锰矿陶瓷中电子辐照引起的缺陷，特定放射性铯主体废物形式：57Fe 穆斯堡尔研究
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
J. Costantini
中科院分区：
文献类型：
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作者：
N. Nguyen;A. Ducouret;F. Studer;V. Aubin;D. Caurant;D. Gourier;J. Costantini
合成了Ba 2 +xCs+y（C = Al，Fe）3+2x+ yTi 4 +8−2x− yO 16单相Hollandite陶瓷，并用模拟放射性铯β辐照的电子束辐照。这些样品已通过57 Fe透射穆斯堡尔谱进行了表征。穆斯堡尔谱结果表明，辐照通过Ba离子的原子位移改变了Ba离子在Fe ~（3+）离子周围的局域排列。
Several single phase hollandite ceramics having Ba2+xCs+y(C = Al,Fe)3+2x+yTi4+8−2x−yO16 composition have been synthesized and irradiated under external electron beams simulating the β-irradiation of radioactive cesium. These samples have been characterized by 57Fe transmission Mössbauer spectroscopy. Mössbauer results show that the irradiation modifies the local arrangements of Ba cations around Fe3+ ions by atomic displacement of Ba ions.