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V. Volpe - One of the best experts on this subject based on the ideXlab platform.
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an investigation into the surface layers formed on Elemental Zinc and oxidised α copper Zinc alloys exposed to so2 in humid air under hypoxic conditions
Corrosion Science, 2014Co-Authors: G. Giovannelli, Stefano Natali, L. Zortea, V. VolpeAbstract:Abstract Elemental Zinc and copper–Zinc alloys capped with a mixed-oxide layer of cuprite and Zincite were exposed to SO 2 vapour in a humid oxygen-free atmosphere. Elemental sulphur, Zinc sulphite and some Zinc hydroxide are the only products which are obtained in the anoxic sulphitation of metal Zinc. The pseudo-binary system Cu 2 SO 3 Cu (1 − x ) Zn x SO 3 ⋅2H 2 O is the result of the experiments on both thermally oxidised and naturally weathered α-brasses. The outcome of competition between the high-copper and the high-Zinc species strongly depends on the mass action law: the greater the ZnO to Cu 2 O phases ratio, the higher the substitution rate of Cu(II) for Zn(II).
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An investigation into the surface layers formed on Elemental Zinc and oxidised α-copper–Zinc alloys exposed to SO2 in humid air under hypoxic conditions
Corrosion Science, 2014Co-Authors: G. Giovannelli, Stefano Natali, L. Zortea, V. VolpeAbstract:Abstract Elemental Zinc and copper–Zinc alloys capped with a mixed-oxide layer of cuprite and Zincite were exposed to SO 2 vapour in a humid oxygen-free atmosphere. Elemental sulphur, Zinc sulphite and some Zinc hydroxide are the only products which are obtained in the anoxic sulphitation of metal Zinc. The pseudo-binary system Cu 2 SO 3 Cu (1 − x ) Zn x SO 3 ⋅2H 2 O is the result of the experiments on both thermally oxidised and naturally weathered α-brasses. The outcome of competition between the high-copper and the high-Zinc species strongly depends on the mass action law: the greater the ZnO to Cu 2 O phases ratio, the higher the substitution rate of Cu(II) for Zn(II).
G. Giovannelli - One of the best experts on this subject based on the ideXlab platform.
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an investigation into the surface layers formed on Elemental Zinc and oxidised α copper Zinc alloys exposed to so2 in humid air under hypoxic conditions
Corrosion Science, 2014Co-Authors: G. Giovannelli, Stefano Natali, L. Zortea, V. VolpeAbstract:Abstract Elemental Zinc and copper–Zinc alloys capped with a mixed-oxide layer of cuprite and Zincite were exposed to SO 2 vapour in a humid oxygen-free atmosphere. Elemental sulphur, Zinc sulphite and some Zinc hydroxide are the only products which are obtained in the anoxic sulphitation of metal Zinc. The pseudo-binary system Cu 2 SO 3 Cu (1 − x ) Zn x SO 3 ⋅2H 2 O is the result of the experiments on both thermally oxidised and naturally weathered α-brasses. The outcome of competition between the high-copper and the high-Zinc species strongly depends on the mass action law: the greater the ZnO to Cu 2 O phases ratio, the higher the substitution rate of Cu(II) for Zn(II).
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An investigation into the surface layers formed on Elemental Zinc and oxidised α-copper–Zinc alloys exposed to SO2 in humid air under hypoxic conditions
Corrosion Science, 2014Co-Authors: G. Giovannelli, Stefano Natali, L. Zortea, V. VolpeAbstract:Abstract Elemental Zinc and copper–Zinc alloys capped with a mixed-oxide layer of cuprite and Zincite were exposed to SO 2 vapour in a humid oxygen-free atmosphere. Elemental sulphur, Zinc sulphite and some Zinc hydroxide are the only products which are obtained in the anoxic sulphitation of metal Zinc. The pseudo-binary system Cu 2 SO 3 Cu (1 − x ) Zn x SO 3 ⋅2H 2 O is the result of the experiments on both thermally oxidised and naturally weathered α-brasses. The outcome of competition between the high-copper and the high-Zinc species strongly depends on the mass action law: the greater the ZnO to Cu 2 O phases ratio, the higher the substitution rate of Cu(II) for Zn(II).
V. Talbot - One of the best experts on this subject based on the ideXlab platform.
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A comparison between particulate (Elemental) Zinc and soluble Zinc (ZnCl_2) uptake and effects in the mussel, Mytilus edulis
Archives of Environmental Contamination and Toxicology, 1994Co-Authors: F. J. Burbidge, D. J. Macey, J. Webb, V. TalbotAbstract:The uptake of particulate (Elemental) and soluble (ZnCl_2) Zinc was compared in whole animals and individual organs in the mussel Mytilus edulis . Analysis of seawater showed that the addition of particulate Zinc resulted in a maximum concentration of 0.7 μg/g dissolved Zinc being present in the aquaria. Mussels exposed to either form of Zinc at 10 µg/g accumulated it readily, although considerable mortality was experienced after 14 days. After loading with particulate Zinc, depuration for 48 h significantly lowered (p
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a comparison between particulate Elemental Zinc and soluble Zinc zncl2 uptake and effects in the mussel mytilus edulis
Archives of Environmental Contamination and Toxicology, 1994Co-Authors: F. J. Burbidge, D. J. Macey, J. Webb, V. TalbotAbstract:The uptake of particulate (Elemental) and soluble (ZnCl2) Zinc was compared in whole animals and individual organs in the mussel Mytilus edulis. Analysis of seawater showed that the addition of particulate Zinc resulted in a maximum concentration of 0.7 μg/g dissolved Zinc being present in the aquaria. Mussels exposed to either form of Zinc at 10 µg/g accumulated it readily, although considerable mortality was experienced after 14 days. After loading with particulate Zinc, depuration for 48 h significantly lowered (p<0.001) the concentration of Zinc in whole mussels. Mussels loaded at 2 µg/g showed a similar pattern of accumulation to those exposed at 10 µg/g, although with a lower mortality. Greater whole body concentrations were obtained with particulate Zinc than with soluble Zinc. On an organ basis, the kidney, gill, hepatopancreas, and mantle were the major sites of accumulation following both soluble and particulate Zinc loading, although generally the levels were lower with particulate loading, indicating the possible presence of two different uptake pathways. The flesh condition index of mussels subjected to 10 µg/g particulate Zinc declined compared to the control animals. Degeneration of the digestive tubules and the stomach was visible in Zinc-loaded mussels while no such tissue damage was seen in control animals. Tissue damage, as indicated by the presence of large quantities of lipofuschin, occurred in the hepatopancreas and gonads of particulate Zinc-loaded mussels. The results indicate that soluble Zinc is both absorbed and taken up by the tissues far more readily than is particulate Zinc, and these results may be of significance with regard to Zinc loading in the mussel Mytilus edulis.
J E Potts - One of the best experts on this subject based on the ideXlab platform.
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low temperature growth of znse by molecular beam epitaxy using cracked selenium
Applied Physics Letters, 1990Co-Authors: Hwa Cheng, J M Depuydt, M A Haase, J E PottsAbstract:Growth of high quality ZnSe films has been achieved at growth temperatures as low as 150 °C by using Elemental Zinc and thermally cracked selenium as source materials. Crystallinity of the films was determined by the Zn/Se flux ratio rather than by the growth rate; it was possible to grow good crystalline films at growth rates from 0.5 to 1 μm/h. Photoluminescence and x‐ray measurements indicated that there is little degradation in the film quality as the growth temperature is lowered from 350 to 150 °C.
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Low‐temperature growth of ZnSe by molecular beam epitaxy using cracked selenium
Applied Physics Letters, 1990Co-Authors: Hwa Cheng, J M Depuydt, M A Haase, J E PottsAbstract:Growth of high quality ZnSe films has been achieved at growth temperatures as low as 150 °C by using Elemental Zinc and thermally cracked selenium as source materials. Crystallinity of the films was determined by the Zn/Se flux ratio rather than by the growth rate; it was possible to grow good crystalline films at growth rates from 0.5 to 1 μm/h. Photoluminescence and x‐ray measurements indicated that there is little degradation in the film quality as the growth temperature is lowered from 350 to 150 °C.
Stefano Natali - One of the best experts on this subject based on the ideXlab platform.
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an investigation into the surface layers formed on Elemental Zinc and oxidised α copper Zinc alloys exposed to so2 in humid air under hypoxic conditions
Corrosion Science, 2014Co-Authors: G. Giovannelli, Stefano Natali, L. Zortea, V. VolpeAbstract:Abstract Elemental Zinc and copper–Zinc alloys capped with a mixed-oxide layer of cuprite and Zincite were exposed to SO 2 vapour in a humid oxygen-free atmosphere. Elemental sulphur, Zinc sulphite and some Zinc hydroxide are the only products which are obtained in the anoxic sulphitation of metal Zinc. The pseudo-binary system Cu 2 SO 3 Cu (1 − x ) Zn x SO 3 ⋅2H 2 O is the result of the experiments on both thermally oxidised and naturally weathered α-brasses. The outcome of competition between the high-copper and the high-Zinc species strongly depends on the mass action law: the greater the ZnO to Cu 2 O phases ratio, the higher the substitution rate of Cu(II) for Zn(II).
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An investigation into the surface layers formed on Elemental Zinc and oxidised α-copper–Zinc alloys exposed to SO2 in humid air under hypoxic conditions
Corrosion Science, 2014Co-Authors: G. Giovannelli, Stefano Natali, L. Zortea, V. VolpeAbstract:Abstract Elemental Zinc and copper–Zinc alloys capped with a mixed-oxide layer of cuprite and Zincite were exposed to SO 2 vapour in a humid oxygen-free atmosphere. Elemental sulphur, Zinc sulphite and some Zinc hydroxide are the only products which are obtained in the anoxic sulphitation of metal Zinc. The pseudo-binary system Cu 2 SO 3 Cu (1 − x ) Zn x SO 3 ⋅2H 2 O is the result of the experiments on both thermally oxidised and naturally weathered α-brasses. The outcome of competition between the high-copper and the high-Zinc species strongly depends on the mass action law: the greater the ZnO to Cu 2 O phases ratio, the higher the substitution rate of Cu(II) for Zn(II).