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Morphology dependent sintering path of nanocrystalline ThO2

机译:纳米晶体的形态依赖性烧结路径

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Thorium is most commonly precipitated as oxalate, because of the high efficiency regardless of precipitation conditions. Thorium oxalate readily decomposes into fine-grained ThO2 during heating, but keeps the macrostructure of the oxalate platelets. To assess the effects of precipitate macrostructure on the sintering behavior, different platelet morphologies were prepared and sintered. There are two factors which influence the sintering: the presence of holes within the platelets and the size of the platelets. Small platelets or precipitates with holes generally sinter to thorium dioxide pellets of a higher density and smaller grain size. (c) 2020 Elsevier B.V. All rights reserved.
机译:由于不管沉淀条件如何,钍是最常见的,原因是草酸盐沉淀为草酸盐。 在加热期间,草酸钍易于分解成细粒晶粒,但保持草酸盐血小板的宏观结构。 为了评估沉淀沉淀成型对烧结行为的影响,制备了不同的血小板形态并烧结。 有两个因素影响烧结:血小板内的孔的存在和血小板的尺寸。 小血小板或用孔沉淀物通常烧结到高密度和更小的晶粒尺寸的二氧化钍颗粒。 (c)2020 Elsevier B.v.保留所有权利。

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