Interaction between Al and atomic layer deposited (ALD) ZrN under high-energy heavy ion irradiation

Sumit Bhattacharya, Xiang Liu, Yinbin Miao, Kun Mo, Zhi Gang Mei, Laura Jamison, Walid Mohamed, Aaron Oaks, Ruqing Xu, Shaofei Zhu, James F. Stubbins, Abdellatif M. Yacout

Research output: Contribution to journalArticle

Abstract

Uranium-molybdenum (U-Mo) particles dispersed in an aluminum matrix is the most promising candidate fuel to convert high-power research and test reactors in Europe from using high-enriched to using low-enriched fuel. However, chemical interaction between the U-Mo and the Al matrix leads to undesirable fuel behavior. Zirconium nitride (ZrN) is used as a diffusion barrier between the U-Mo fuel particles and the Al matrix. To understand the potential microstructural evolution of ZrN during irradiation, a high-energy heavy ion (84 MeV Xe) irradiation experiment was performed on atomic layer deposited (ALD) nanocrystalline ZrN deposited on an Al plate. A fluence of 1.86×1017 ions/cm2, or 90.3 dpa was reached during this experiment. Both analytic transmission electron microscopy (TEM) and synchrotron microbeam X-ray diffraction (μXRD) techniques were utilized to investigate the kinetics of radiation-induced grain growth of ZrN at various radiation doses based on the Williamson-Hall analyses. The grain growth kinetics can be described by a power law expression, Dn−D0 n=Kϕ with n = 5.1. The Al-ZrN interaction products (Al3Zr and AlN) created by radiation-induced ballistic mixing/radiation-enhanced diffusion and their corresponding formation mechanism were determined from electron diffraction and elemental composition analysis. These experimental results were confirmed by first principle thermodynamic density functional theory (DFT) calculations. The results from this ion irradiation study were also compared to in-pile irradiation data from physical vapor deposited (PVD) ZrN samples for a comprehensive evaluation of the interaction between Al and ZrN and its influence on diffusion barrier performance.

Original languageEnglish (US)
Pages (from-to)788-798
Number of pages11
JournalActa Materialia
Volume164
DOIs
StatePublished - Feb 1 2019

Fingerprint

Heavy Ions
Ion bombardment
Heavy ions
Zirconium
Nitrides
Uranium
Molybdenum
Diffusion barriers
Irradiation
Grain growth
Radiation
Growth kinetics
Microstructural evolution
Ballistics
Aluminum
Synchrotrons
Electron diffraction
Dosimetry
Piles
Density functional theory

Keywords

  • Atomic layer deposition (ALD)
  • Interaction
  • Ion irradiation
  • Microstructure
  • Synchrotron diffraction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

Cite this

Bhattacharya, S., Liu, X., Miao, Y., Mo, K., Mei, Z. G., Jamison, L., ... Yacout, A. M. (2019). Interaction between Al and atomic layer deposited (ALD) ZrN under high-energy heavy ion irradiation. Acta Materialia, 164, 788-798. https://doi.org/10.1016/j.actamat.2018.10.031

Interaction between Al and atomic layer deposited (ALD) ZrN under high-energy heavy ion irradiation. / Bhattacharya, Sumit; Liu, Xiang; Miao, Yinbin; Mo, Kun; Mei, Zhi Gang; Jamison, Laura; Mohamed, Walid; Oaks, Aaron; Xu, Ruqing; Zhu, Shaofei; Stubbins, James F.; Yacout, Abdellatif M.

In: Acta Materialia, Vol. 164, 01.02.2019, p. 788-798.

Research output: Contribution to journalArticle

Bhattacharya, S, Liu, X, Miao, Y, Mo, K, Mei, ZG, Jamison, L, Mohamed, W, Oaks, A, Xu, R, Zhu, S, Stubbins, JF & Yacout, AM 2019, 'Interaction between Al and atomic layer deposited (ALD) ZrN under high-energy heavy ion irradiation', Acta Materialia, vol. 164, pp. 788-798. https://doi.org/10.1016/j.actamat.2018.10.031
Bhattacharya, Sumit ; Liu, Xiang ; Miao, Yinbin ; Mo, Kun ; Mei, Zhi Gang ; Jamison, Laura ; Mohamed, Walid ; Oaks, Aaron ; Xu, Ruqing ; Zhu, Shaofei ; Stubbins, James F. ; Yacout, Abdellatif M. / Interaction between Al and atomic layer deposited (ALD) ZrN under high-energy heavy ion irradiation. In: Acta Materialia. 2019 ; Vol. 164. pp. 788-798.
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AU - Miao, Yinbin

AU - Mo, Kun

AU - Mei, Zhi Gang

AU - Jamison, Laura

AU - Mohamed, Walid

AU - Oaks, Aaron

AU - Xu, Ruqing

AU - Zhu, Shaofei

AU - Stubbins, James F.

AU - Yacout, Abdellatif M.

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AB - Uranium-molybdenum (U-Mo) particles dispersed in an aluminum matrix is the most promising candidate fuel to convert high-power research and test reactors in Europe from using high-enriched to using low-enriched fuel. However, chemical interaction between the U-Mo and the Al matrix leads to undesirable fuel behavior. Zirconium nitride (ZrN) is used as a diffusion barrier between the U-Mo fuel particles and the Al matrix. To understand the potential microstructural evolution of ZrN during irradiation, a high-energy heavy ion (84 MeV Xe) irradiation experiment was performed on atomic layer deposited (ALD) nanocrystalline ZrN deposited on an Al plate. A fluence of 1.86×1017 ions/cm2, or 90.3 dpa was reached during this experiment. Both analytic transmission electron microscopy (TEM) and synchrotron microbeam X-ray diffraction (μXRD) techniques were utilized to investigate the kinetics of radiation-induced grain growth of ZrN at various radiation doses based on the Williamson-Hall analyses. The grain growth kinetics can be described by a power law expression, Dn−D0 n=Kϕ with n = 5.1. The Al-ZrN interaction products (Al3Zr and AlN) created by radiation-induced ballistic mixing/radiation-enhanced diffusion and their corresponding formation mechanism were determined from electron diffraction and elemental composition analysis. These experimental results were confirmed by first principle thermodynamic density functional theory (DFT) calculations. The results from this ion irradiation study were also compared to in-pile irradiation data from physical vapor deposited (PVD) ZrN samples for a comprehensive evaluation of the interaction between Al and ZrN and its influence on diffusion barrier performance.

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