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Local structure analysis of ZrN, and Dy$$_{0.5}$$Zy$$_{0.5}$$N surrogate materials for fast reactor nitride fuel

Yoneda, Yasuhiro   ; Tsuji, Takuya  ; Matsumura, Daiju   ; Okamoto, Yoshihiro  ; Takaki, Seiya  ; Takano, Masahide 

ZnN is a possible candidate for the diluent material for nitride fuels containing transuranium elements. Pellets of inert matrix material ZrN, and surrogate nitride fuel material Dy$$_{0.5}$$Zr$$_{0.5}$$N, are fabricated for the purpose of investigating the crystal structure. Lattice parameters of Dy$$_{1-x}$$Zr$$_x$$N followed the Vegard's low, in spite of the large lattice mismatch ($$sim$$ 7%) between DyN and ZrN. Local structure analysis was performed by X-ray absorption fine structure (XAFS) and atomic pair-distribution function (PDF) methods. The Zr-N nearest neighbor bond distance changed as changing the Dy composition. The complex local structure of DyN and ZrN is related to the preferable effects of ZrN.

Language

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English

Journal

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Transactions of the Materials Research Society of Japan

Volume

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42

Number

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2

Pages

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p.23 - 26

Publication Year/Month

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2017/04

Meeting title

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第26回日本MRS年次大会

Held date

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2016/12

Location (city)

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横浜

Location (country)

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日本

Patent information

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PDF

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Paper URL

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DOI for research data

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Keywords

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Nitride Fuel; Crystal Structure; Synchrotron X-ray

Research Facility

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SPring-8(大型放射光施設)

Press Release

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Article of JAEA R&D Review

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Cooperating Institute

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Accesses

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- Accesses

InCites™

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Altmetrics

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