Zr0.70[Yi1-xNdx]0.30O1.85 as a potential candidate for inert matrix fuel: Structural and thermo-physical property investigations

被引：13

作者：

Nandi, Chiranjit ^{[1
,3
]}

Jain, Dheeraj ^{[2
]}

Grover, V ^{[2
,3
]}

Dawar, Rimpi ^{[2
]}

Kaity, Santu ^{[1
]}

Prakash, Amrit ^{[1
]}

Tyagi, A. K. ^{[2
,3
]}

机构：

[1] Bhabha Atom Res Ctr, Radiomet Div, Bombay 400085, Maharashtra, India

[2] Bhabha Atom Res Ctr, Chem Div, Bombay 400085, Maharashtra, India

[3] Homi Bhabha Natl Inst, Bombay 400094, Maharashtra, India

来源：

JOURNAL OF NUCLEAR MATERIALS | 2018年 / 510卷

关键词：

Stabilized zirconia; XRD; Raman spectroscopy; Thermal expansion; Thermal conductivity; YTTRIA-STABILIZED ZIRCONIA; THERMOPHYSICAL PROPERTIES; RAMAN-SPECTROSCOPY; BARRIER COATINGS; PHASE-BOUNDARY; NUCLEAR-FUEL; CONDUCTIVITY; TRANSMUTATION; STRATEGIES; RADIOTOXICITY;

D O I：

10.1016/j.jnucmat.2018.08.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to mimic the loading of americium (Am) and curium (Cm) oxide in yttria stabilized zirconia, Zr-0.70[Yi(1-x)Nd(x)](0.30)O-1.85 (0.0 <= x <= 1.0) system was synthesized by solid state route and characterized by X-ray diffraction (XRD) and Raman spectroscopy. The entire system appeared single-phasic fluorite-type by XRD. However, Raman spectroscopy revealed the existence of tetragonal domains for the Nd-rich composition, Zr0.70Nd0.30O1.85 (x = 1.0). Bulk thermal expansion coefficient was found to increase with increasing NdO1.5 content in this series in the temperature range 298-1473 K. The heat capacity of sintered samples was measured by heat flux-type differential scanning calorimeter over the temperature range 313-713 K and it was observed to decrease with increasing Nd3+-content. Thermal conductivity values were determined from measured thermal diffusivity, temperature dependent density and specific heat capacity values. The thermal conductivity of Nd3+ stabilized zirconia was lower than yttria stabilized zirconia. (C) 2018 Published by Elsevier B.V.

引用

页码：178 / 186

页数：9

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