Nanocrystalline ZrN thin film development via atomic layer deposition for U-Mo powder

Bhattacharya, Sumit; Jamison, Laura; Seidman, David N.; Mohamed, Walid; Bei, Y.Y.; Pellin, Michael J.; Yacout, Abdellatif M.

doi:10.1016/j.jnucmat.2019.151770

Cited by 20 publications

(12 citation statements)

References 31 publications

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“…These phenomena can be explained with the following three main reasons. First, as cross-sectional morphology presented in Figure 4, the three ZrN coatings can effectively prevent the corrosive medium from contacting the substrate as they are relatively dense and have a certain thickness [33]. Second, during the preparation of the ZrN monolayer, micro-pores and other defects will be formed in the layer due to the existence of the columnar crystal structure of the layer and the surface droplets [27,34].…”

Section: Discussionmentioning

confidence: 99%

Improvement of Erosion-Corrosion Behavior of AISI 420 Stainless Steel by Ion-Assisted Deposition ZrN Coatings

Wan

Hou

et al. 2021

Metals

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In this paper, a pragmatic technique has been developed to evaluate the erosion-corrosion behavior of three kinds of ZrN coatings (i.e., monolayer, multilayer, and gradient layers) which were deposited on AISI 420 martensitic stainless steel using an ion-assisted deposition technology. Among them, the monolayer coating refers to the coating with no change in composition and structure, the multilayer coating refers to the coating with alternating change of Zr/ZrN, and the gradient coating refers to the ZrN coating by increasing N2 partial pressure gradually. The morphology, composition, and microhardness of these ZrN coatings were examined by means of integrating the scanning electron microscopy (SEM), X-ray diffraction (XRD), and Knoop hardness measurements, while anodic polarization tests and salt fog spray tests in a simulated industrial environment have been performed to evaluate and identify the corrosion mechanisms of these coatings. The surface microhardness and corrosion resistance of the AISI420 martensitic stainless steel is found to be significantly improved by depositing the ion-assisted deposition ZrN coatings. The study indicates that the erosion-corrosion behavior in the slurry is the result of the synergistic effect of small-angle erosion and acid solution corrosion. Three ZrN coatings hinder the slurry erosion-corrosion behavior from two aspects (i.e., erosion resistance of small-angle particles as well as corrosion resistance of the substrate), thereby significantly improving the erosion-corrosion resistance of AISI 420 stainless steel. In addition, the ZrN gradient coatings show a much better erosion-corrosion resistance than that of the monolayer/multilayer ZrN coating because they have excellent crack resistance, bearing capacity, and electrochemical performance.

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Section: Discussionmentioning

confidence: 99%

Improvement of Erosion-Corrosion Behavior of AISI 420 Stainless Steel by Ion-Assisted Deposition ZrN Coatings

Wan

Hou

et al. 2021

Metals

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“…5c) to form a diffusion barrier coating that could prevent the harmful interaction between the fuel and the aluminum matrix. 33 In situ heavy ion irradiation experiment showed that the ALD ZrN lm signicantly improved the irradiation stability of the fuel particles. During the extended storage process of spent nuclear fuel, helium gas accumulation from alpha decay could damage the structural integrity of the fuel.…”

Section: Stabilization and Passivation Of Particlesmentioning

confidence: 99%

Surface modification and functionalization of powder materials by atomic layer deposition: a review

Lü

Feng

2021

RSC Adv.

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“…For ZrN ALD film growth, the substrate was heated to a temperature of ~220 °C followed by a consecutive exposure of TDMAZr and NH3. This temperature has been selected based on previous work, whose details can be found in reference [9]. In between pulses purging was performed with nitrogen (N2) gas to remove residual reactants and reaction products.…”

Section: Ald Zrn Coating Processmentioning

confidence: 99%

Selection and Characterization of Surrogate Material for Developing Zr Barrier Coatings for Uranium Nitride Particles

Bhattacharya

Seibert

Nelson

et al. 2021

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Nanocrystalline ZrN thin film development via atomic layer deposition for U-Mo powder

Cited by 20 publications

References 31 publications

Improvement of Erosion-Corrosion Behavior of AISI 420 Stainless Steel by Ion-Assisted Deposition ZrN Coatings

Improvement of Erosion-Corrosion Behavior of AISI 420 Stainless Steel by Ion-Assisted Deposition ZrN Coatings

Surface modification and functionalization of powder materials by atomic layer deposition: a review

Selection and Characterization of Surrogate Material for Developing Zr Barrier Coatings for Uranium Nitride Particles

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