Synthesis and characterisation of high ceramic fraction brannerite (UTi2O6) glass-ceramic composites
Synthesis and characterisation of high ceramic fraction brannerite (UTi2O6) glass-ceramic composites
复制标题
高陶瓷分数镁锰矿（UTi2O6）微晶玻璃复合材料的合成与表征
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
N. Hyatt
中科院分区：
文献类型：
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作者：
M. C. Dixon Wilkins;E. Maddrell;M. Stennett;N. Hyatt
以UO_2和TiO_2为陶瓷相前驱体，制备了钙钛矿、UTi_2O_6、微晶玻璃复合材料。在氩气和1200 °C下制备了一系列具有不同玻璃：陶瓷比率的冷压和烧结样品，以研究玻璃含量对形成钾镁矾的影响。陶瓷brannerite形成以及在所有的组合物中，即使在低（10%重量）的玻璃分数，与二氧化铀作为次要产品。采用热等静压法制备了三种不同类型的钙钛矿微晶玻璃，研究了该系统与热等静压工艺的相容性。在1200 °C下热等静压处理的样品形成铀矾，其中UO 2作为次要相，丰度略高于冷压和烧结样品。
Brannerite, UTi2O6, glass-ceramic composites have been prepared, using UO2 and TiO2 as the ceramic phase precursors. A range of cold-press and sinter samples with varying glass:ceramic ratios have been prepared under argon at 1200 °C to investigate the effect of glass content on formation of brannerite. Ceramic brannerite formed well in all compositions, even at low (10% by weight) glass fractions, with UO2 as a minor product. Three further brannerite glass-ceramics have been prepared by hot isostatic pressing to investigate the compatibility of this system to HIPing. The samples HIPed at 1200 °C form brannerite, with UO2 as a minor phase with slightly higher abundance than in the cold-press and sinter samples.