The Experts below are selected from a list of 152529 Experts worldwide ranked by ideXlab platform
William A. Brantley - One of the best experts on this subject based on the ideXlab platform.
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Nanotubular Oxide Layer formation on Ti–13Nb–13Zr alloy as a function of applied potential
Journal of Materials Science, 2009Co-Authors: Viswanathan S. Saji, Han Cheol Choe, William A. BrantleyAbstract:Nanotubular Oxide Layer formation on biomedical grade α + β type Ti–13Nb–13Zr alloy was investigated using anodization technique as a function of applied dc potential (10–40 V) and anodizing time (30–180 min) in 1 M H_3PO_4 + 0.5 wt% NaF at room temperature. The as-formed and crystallized nanotubes were characterized using SEM, XRD, and TEM. There was a bimodal size distribution of nanotubes with diameters at the range of 25–110 nm. Nanotubes nucleated on β matrix exhibited uniform surface appearance with circular morphology, whereas those nucleated on α phase yielded parabolic shape. TEM/EDS analysis detected the three component elements of the alloy in the nanotube. Heat treatment significantly altered the distinct interface between the nanotubes and the barrier Oxide Layer.
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nanotubular Oxide Layer formation on ti 13nb 13zr alloy as a function of applied potential
Journal of Materials Science, 2009Co-Authors: Viswanathan S. Saji, Han Cheol Choe, William A. BrantleyAbstract:Nanotubular Oxide Layer formation on biomedical grade α + β type Ti–13Nb–13Zr alloy was investigated using anodization technique as a function of applied dc potential (10–40 V) and anodizing time (30–180 min) in 1 M H3PO4 + 0.5 wt% NaF at room temperature. The as-formed and crystallized nanotubes were characterized using SEM, XRD, and TEM. There was a bimodal size distribution of nanotubes with diameters at the range of 25–110 nm. Nanotubes nucleated on β matrix exhibited uniform surface appearance with circular morphology, whereas those nucleated on α phase yielded parabolic shape. TEM/EDS analysis detected the three component elements of the alloy in the nanotube. Heat treatment significantly altered the distinct interface between the nanotubes and the barrier Oxide Layer.
Tao Hang - One of the best experts on this subject based on the ideXlab platform.
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The influence of non-uniform copper Oxide Layer on tin whisker growth and tin whisker growth behavior in SnAg microbumps with small diameter
Materials Letters, 2019Co-Authors: Menglong Sun, Huiqin Ling, Siru Ren, Tao HangAbstract:Abstract A non-uniform copper Oxide Layer with several hundred nanometers thick was observed covering the surface of 10 μm-diameter Cu/SnAg microbump. Tin whiskers were also found to form on the weak spots of this copper Oxide Layer, where were localized stress relief centers. The HRTEM results reveal the existence of twin grain boundary between tin whisker and neighboring grain. Numerous dislocations at the twin boundary provide paths for the tin atoms to slip into tin whisker. It is the first time that the existence of copper Oxide Layer and the relationship between copper Oxide Layer and tin whiskers growth was studied and revealed in micron-level bumps. This present study has significant meaning for 3D electronic packaging as small size microbumps become increasingly prevalent and in which, surface diffusion becomes more important.
Gaëlle Gutierrez - One of the best experts on this subject based on the ideXlab platform.
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Influence of light ion irradiation of the Oxide Layer on the oxidation rate of zircaloy-4 : irradiation of the post-transition Oxide Layer
Corrosion Science, 2019Co-Authors: Marc Tupin, Boris Venague, Gaëlle GutierrezAbstract:Abstract The corrosion behavior of Zircaloy-4 fuel cladding in nuclear reactor is affected by irradiation damage. The irradiation effect of the post-transition Oxide Layer on the Zircaloy-4 corrosion rate has been investigated using protons. As previously observed on pre-transition Oxide Layer, irradiation defects increase the oxidation rate of the alloy up to around 30 days in autoclave in agreement with the irradiation defect annealing characterized by Raman spectroscopy. The model proposed for pre-transition regime is able to describe the oxidation rate after irradiation of post-transition Oxide Layers.
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Influence of light ion irradiation of the Oxide Layer on the oxidation rate of zircaloy-4: Irradiation of the post-transition Oxide Layer
Corrosion Science, 2018Co-Authors: Marc Tupin, Boris Venague, Gaëlle GutierrezAbstract:The oxidation rate of Zircaloy-4 fuel cladding in nuclear reactor strongly increases at high burnups. This kinetics acceleration could be in large part due to the irradiation damage. The irradiation effect of the post-transition Oxide Layer on the Zircaloy-4 corrosion rate has been investigated using protons. As previously observed on pre-transition Oxide Layer, irradiation defects increases the oxidation rate of the alloy up to around 30 days in autoclave in agreement with the irradiation defect annealing characterized by Raman spectroscopy. The model proposed in previous works is able to describe the oxidation rate after irradiation of post-transition Oxide Layers.
Viswanathan S. Saji - One of the best experts on this subject based on the ideXlab platform.
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Nanotubular Oxide Layer formation on Ti–13Nb–13Zr alloy as a function of applied potential
Journal of Materials Science, 2009Co-Authors: Viswanathan S. Saji, Han Cheol Choe, William A. BrantleyAbstract:Nanotubular Oxide Layer formation on biomedical grade α + β type Ti–13Nb–13Zr alloy was investigated using anodization technique as a function of applied dc potential (10–40 V) and anodizing time (30–180 min) in 1 M H_3PO_4 + 0.5 wt% NaF at room temperature. The as-formed and crystallized nanotubes were characterized using SEM, XRD, and TEM. There was a bimodal size distribution of nanotubes with diameters at the range of 25–110 nm. Nanotubes nucleated on β matrix exhibited uniform surface appearance with circular morphology, whereas those nucleated on α phase yielded parabolic shape. TEM/EDS analysis detected the three component elements of the alloy in the nanotube. Heat treatment significantly altered the distinct interface between the nanotubes and the barrier Oxide Layer.
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nanotubular Oxide Layer formation on ti 13nb 13zr alloy as a function of applied potential
Journal of Materials Science, 2009Co-Authors: Viswanathan S. Saji, Han Cheol Choe, William A. BrantleyAbstract:Nanotubular Oxide Layer formation on biomedical grade α + β type Ti–13Nb–13Zr alloy was investigated using anodization technique as a function of applied dc potential (10–40 V) and anodizing time (30–180 min) in 1 M H3PO4 + 0.5 wt% NaF at room temperature. The as-formed and crystallized nanotubes were characterized using SEM, XRD, and TEM. There was a bimodal size distribution of nanotubes with diameters at the range of 25–110 nm. Nanotubes nucleated on β matrix exhibited uniform surface appearance with circular morphology, whereas those nucleated on α phase yielded parabolic shape. TEM/EDS analysis detected the three component elements of the alloy in the nanotube. Heat treatment significantly altered the distinct interface between the nanotubes and the barrier Oxide Layer.
Menglong Sun - One of the best experts on this subject based on the ideXlab platform.
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The influence of non-uniform copper Oxide Layer on tin whisker growth and tin whisker growth behavior in SnAg microbumps with small diameter
Materials Letters, 2019Co-Authors: Menglong Sun, Huiqin Ling, Siru Ren, Tao HangAbstract:Abstract A non-uniform copper Oxide Layer with several hundred nanometers thick was observed covering the surface of 10 μm-diameter Cu/SnAg microbump. Tin whiskers were also found to form on the weak spots of this copper Oxide Layer, where were localized stress relief centers. The HRTEM results reveal the existence of twin grain boundary between tin whisker and neighboring grain. Numerous dislocations at the twin boundary provide paths for the tin atoms to slip into tin whisker. It is the first time that the existence of copper Oxide Layer and the relationship between copper Oxide Layer and tin whiskers growth was studied and revealed in micron-level bumps. This present study has significant meaning for 3D electronic packaging as small size microbumps become increasingly prevalent and in which, surface diffusion becomes more important.
