Mechanical and thermal properties of Fe2B

被引：10

作者：

Nakamori F. ^{[1
]}

Ohishi Y. ^{[1
]}

Kumagai M. ^{[1
]}

Muta H. ^{[1
]}

Kurosaki K. ^{[1
]}

Fukumoto K.-I. ^{[2
]}

Yamanaka S. ^{[1
,2
]}

机构：

[1] Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita-shi, Osaka

[2] Research Institute of Nuclear Engineering, University of Fukui, 1-2-4 Kanawacho, Tsuruga-shi, Fukui

来源：

Transactions of the Atomic Energy Society of Japan | 2016年 / 15卷 / 04期

关键词：

Elastic modulus; Electric thermal conductivity; Fracture toughness; Fuel debris; Iron boride; Mechanical properties; Thermal conductivity; Thermal diffusivity; Thermal properties; Vickers hardness;

D O I：

10.3327/taesj.J16.005

中图分类号：

学科分类号：

摘要：

Fe2B appears to have formed in the fuel debris at the Fukushima Daiichi nuclear disaster site through the reaction between stainless steel and the control material B4C. In order to conduct defueling operations, understanding the physical properties of Fe2B is of extreme importance. In the present study, we have prepared an Fe2B bulk sample with 92.5% theoretical density by spark plasma sintering of Fe2B powder, and we have evaluated the mechanical and thermal properties of the sample. The thermal diffusivity was measured by a laser flash method in an argon flow. The thermal conductivity was evaluated from the heat capacity, thermal diffusivity, and density. The electron thermal conductivity was calculated from measurement values of electric conductivity. The longitudinal and shear sound velocities were measured by a sing-around method at room temperature in air, which enables the elastic modulus and Debye temperature to be evaluated. The hardness measurements were performed at room temperature in air using a Vickers hardness tester. The fracture toughness was estimated from a crack produced by an indenter. The maximun Vickers hardness and fracture toughness were determined to be 12 GPa and 2.8 MPa m0.5, respectively. © 2016 Atomic Energy Society of Japan, All Rights Reserved.

引用

页码：223 / 228

页数：5

共 32 条

[1]

Yano K., Kitagaki T., Ikeuchi H., Wakui R., Higuchi H., Kaji N., Koizumi K., Washiya T., Direction on characterization of fuel debris for defueling process in Fukushima Daiichi Nuclear Power Station, Proc. Global 2013, pp. 1554-1559, (2013)

[2]

Takano M., Nishi T., Shirasu N., Characterization of solidified melt among materials of UO2 fuel and B4C control blade, J. Nucl. Sci. Technol., 51, pp. 859-875, (2014)

[3]

Nakamori F., Ohishi Y., Muta H., Kurosaki K., Fukumoto K., Yamanaka S., Mechanical and thermal properties of bulk ZrB2, J. Nucl. Mater., 467, pp. 612-617, (2015)

[4]

Hofmann P., Current knowledge on core degradation phenomena, a review, J. Nucl. Mater., 270, pp. 194-211, (1999)

[5]

Campos-Silva I., Martinez-Trinidad J., Donu-Ruiz M.A., Rodriguez-Castro G., Hernandez-Sanchez E., Bravo-Barcenas O., Interfacial indentation test of FeB/Fe2B coatings, Surf. Coat. Technol., 206, pp. 1809-1815, (2011)

[6]

Kawakami M., Endoh T., Watanabe Y., Houkatestu no yanguristu oyobi X-sen zanryuuouryoku sokutei, Soc. Mater. Sci., 29, pp. 91-93, (1980)

[7]

Campos-Silva I., Hernandez-Sanchez E., Rodriguez-Castro G., Cimenoglu H., Nava-Sanchez J.L., Meneses-Amador A., Carrera-Espinoza R., A study of indentation for mechanical characterization of the Fe2B layer, Surf. Coat. Technol., 232, pp. 173-181, (2013)

[8]

Meneses-Amador A., Campos-Silva I., Martinez-Trinidad J., Panier S., Figueroa-Lopez U., Torres-Hernandez A., An expression to determine the Vickers indentation fracture toughness obtained by the finite element method on Fe2B layers, Surf. Coat. Technol., 215, pp. 185-290, (2013)

[9]

Kunitskii Y.A., Marek E.V., Some physical properties of iron borides, Sov. Powder Metall. Met. Ceram., 10, pp. 216-218, (1971)

[10]

Huang Z., Ma S., Xing J., Wang B., Bulk Fe2B crystal fabricated by mechanical ball milling and plasma activated sintering, J. Alloys Comp., 582, pp. 196-200, (2014)

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