Initial sintering kinetics of non-stoichiometric CeO_(2-x)

Masashi Watanabe; Takayuki Seki

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Initial sintering kinetics of non-stoichiometric CeO_(2-x)

机译：非化学计量CEO_（2-x）的初始烧结动力学

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摘要

The effect of oxygen non-stoichiometry on the initial sintering behavior of CeO_2 was investigated. It was found that the initial sintering of the stoichiometric and hypo-stoichiometric composition was controlled by the grain boundary diffusion. The activation energies of cation diffusion were derived from initial sintering data. Moreover, it is suggested that the cation diffusion was caused by a vacancy mechanism.

机译：研究了氧非化学计量对CEO_2初始烧结行为的影响。发现通过晶界扩散来控制化学计量和Hypo-化学计量组合物的初始烧结。阳离子扩散的激活能量来自初始烧结数据。此外，建议阳离子扩散是由空位机制引起的。

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来源
《Materials Science and Engineering》 |2021年第10期|115369.1-115369.6|共6页
作者
Masashi Watanabe; Takayuki Seki;
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作者单位

Fuels and Materials Department Japan Atomic Energy Agency 4002 Narita-cho Oarai-machi Ibaraki 311-1393 Japan Fuel Cycle Design Office Japan Atomic Energy Agency 4002 Narita-cho Oarai-machi Ibaraki 311-1393 Japan;

Inspection Development Company Ltd 3129-37 Muramatsu Tokai-mura Ibaraki 319-1112 Japan;

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正文语种 eng
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关键词
Initial sintering; Diffusion coefficient; Non-stoichiometry;

机译：初始烧结;扩散系数;非化学计量;

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1. Two-step Sintering of Non-stoichiometric CeO_(2-x) [J] . Hitoshi Abe, Makoto Nanko, Masato Kato, Materials science forum . 2015,第期

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2. Enhancement of resistive switching performance by introducing a thin non-stoichiometric CeO_(2-x) switching layer in TiO_2-based resistive random access memory [J] . Ismail Muhammad, Nisa Shafqat-Un, Rana Anwar Manzoor, Applied Physics Letters . 2019,第1期

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3. SINTERING KINETIC STUDY OF 2Y-TZP/AL_2O_3 COMPOSITE DURING INITIAL STAGE OF SINTERING [J] . Abhijit Ghosh, Soumyajit Koley, Ashok Kumar Sahu, Ceramic Engineering and Science Proceedings . 2009,第8期

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4. Investigation of the kinetics of spark plasma sintering of alumina ceramics.Part 1.The initial stage of sintering [C] . M S Boldin, A A Popov, E A Lantsev International Conference on Synthesis and Consolidation of Powder Materials . 2019

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5. Initial stage sintering model of 316L stainless steel with application to three dimensionally printed (3DP(TM)) components. [D] . Johnston, Scott R. 2005

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6. Influence of Obtaining Conditions on Kinetics of the Initial Sintering Stage of Zirconia Nanopowders [O] . Marharyta Lakusta, Igor Danilenko, Tetyana Konstantinova, 2016

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8. Initial Sintering Stage Kinetics of CeO sub 2 Studied by Stepwise Isothermal Dilatometry [R] . El Sayed Ali, M., Toft Soerensen, O. 1985

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Initial sintering kinetics of non-stoichiometric CeO_(2-x)

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