Nanoindentation study of bulk zirconium hydrides at elevated temperatures

Cinbiz, Mahmut Nedim; Balooch, Mehdi; Hu, Xunxiang; Amroussia, Aida; Terrani, Kurt A.

doi:10.1016/j.jallcom.2017.07.319

Title: Nanoindentation study of bulk zirconium hydrides at elevated temperatures

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Abstract

Here, the mechanical properties of zirconium hydrides was studied using nano-indentation technique at a temperature range of 25 – 400 °C. Temperature dependency of reduced elastic modulus and hardness of δ- and ε-zirconium hydrides were obtained by conducting nanoindentation experiments on the bulk hydride samples with independently heating capability of indenter and heating stage. The reduced elastic modulus of δ-zirconium hydride (H/Zr ratio =1.61) decreased from ~113 GPa to ~109 GPa while temperature increased from room temperature to 400°C. For ε-zirconium hydrides (H/Zr ratio=1.79), the reduced elastic modulus decreased from 61 GPa to 54 GPa as temperature increased from room temperature to 300 °C. Whereas, hardness of δ-zirconium hydride significantly decreased from 4.1 GPa to 2.41 GPa when temperature increased from room temperature to 400 °C. Similarly, hardness of ε-zirconium hydride decreased from 3.06 GPa to 2.19 GPa with temperature increase from room temperature to 300°C.

Authors:

^[1]; Balooch, Mehdi ^[2];

^[1]; Amroussia, Aida ^[3];

^[1]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Univ. of California, Berkeley, CA (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Michigan State Univ., East Lansing, MI (United States)

Publication Date:: Wed Aug 02 00:00:00 EDT 2017

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Nuclear Energy (NE)

OSTI Identifier:: 1400216

Alternate Identifier(s):: OSTI ID: 1549610

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Alloys and Compounds

Additional Journal Information:: Journal Volume: 726; Journal Issue: C; Journal ID: ISSN 0925-8388

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Zirconium hydrides; Bulk hydride; Nanoindentation; Temperature dependent elastic modulus; δ hydrides; Reduced elastic modulus

Citation Formats


                    Cinbiz, Mahmut Nedim, Balooch, Mehdi, Hu, Xunxiang, Amroussia, Aida, and Terrani, Kurt A. Nanoindentation study of bulk zirconium hydrides at elevated temperatures.  United States: N. p., 2017. 
Web.  doi:10.1016/j.jallcom.2017.07.319.

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                    Cinbiz, Mahmut Nedim, Balooch, Mehdi, Hu, Xunxiang, Amroussia, Aida, & Terrani, Kurt A. Nanoindentation study of bulk zirconium hydrides at elevated temperatures.  United States.  https://doi.org/10.1016/j.jallcom.2017.07.319

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                    Cinbiz, Mahmut Nedim, Balooch, Mehdi, Hu, Xunxiang, Amroussia, Aida, and Terrani, Kurt A. Wed .  
"Nanoindentation study of bulk zirconium hydrides at elevated temperatures".  United States.  https://doi.org/10.1016/j.jallcom.2017.07.319.  https://www.osti.gov/servlets/purl/1400216.

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@article{osti_1400216,

  title        = {Nanoindentation study of bulk zirconium hydrides at elevated temperatures},

  author       = {Cinbiz, Mahmut Nedim and Balooch, Mehdi and Hu, Xunxiang and Amroussia, Aida and Terrani, Kurt A.},

  abstractNote = {Here, the mechanical properties of zirconium hydrides was studied using nano-indentation technique at a temperature range of 25 – 400 °C. Temperature dependency of reduced elastic modulus and hardness of δ- and ε-zirconium hydrides were obtained by conducting nanoindentation experiments on the bulk hydride samples with independently heating capability of indenter and heating stage. The reduced elastic modulus of δ-zirconium hydride (H/Zr ratio =1.61) decreased from ~113 GPa to ~109 GPa while temperature increased from room temperature to 400°C. For ε-zirconium hydrides (H/Zr ratio=1.79), the reduced elastic modulus decreased from 61 GPa to 54 GPa as temperature increased from room temperature to 300 °C. Whereas, hardness of δ-zirconium hydride significantly decreased from 4.1 GPa to 2.41 GPa when temperature increased from room temperature to 400 °C. Similarly, hardness of ε-zirconium hydride decreased from 3.06 GPa to 2.19 GPa with temperature increase from room temperature to 300°C.},

  doi          = {10.1016/j.jallcom.2017.07.319},

  journal      = {Journal of Alloys and Compounds},

  number       = C,

  volume       = 726,

  place        = {United States},

  year         = {Wed Aug 02 00:00:00 EDT 2017},

  month        = {Wed Aug 02 00:00:00 EDT 2017}

}

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