Mechanical properties at sub-microscale and macroscale of polycrystalline uranium mononitride

Adachi, Jun*; Kurosaki, Ken*; Uno, Masayoshi*; Yamanaka, Shinsuke*; Takano, Masahide ; Akabori, Mitsuo; Minato, Kazuo

The indentation hardness, Vickers hardness, fracture toughness, and Young's modulus of polycrystalline uranium monontride (UN) at sub-microscale and macroscale were evaluated by an indentation test, Vickers hardness test, and the ultrasonic pulse echo method. The Young's modulus and Vickers hardness were in good agreement with the literature values. The fracture toughness of UN was about three times that of UO $_{2}$ . In addition, we revealed the indentation size effect on the indentation hardness of UN.

Language	:	English
Journal	:	Journal of Nuclear Materials
Volume	:	384
Number	:	1
Pages	:	p.6 - 11
Publication Year/Month	:	2009/01
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Paper URL	:	https://doi.org/10.1016/j.jnucmat.2008.09.019
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Keywords	:	no keyword
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Article of JAEA R&D Review	:
Cooperating Institute	:	文部科学省

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Registration No. : AA20080872
JAEA Abstracts No. :
Paper Submission No. : 8581

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