The Experts below are selected from a list of 240 Experts worldwide ranked by ideXlab platform
Hiroyoshi Yashiki - One of the best experts on this subject based on the ideXlab platform.
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Effect of Antimony surface treatment on nitrogen absorption during batch annealing of an electrical steel sheet
Journal of Materials Science, 1997Co-Authors: Taisei Nakayama, Akihiro Yauchi, Takashi Tanaka, Hiroyoshi YashikiAbstract:Nitrogen absorption is usually observed during batch-type hot-band annealing of electrical steel sheets containing aluminium. This nitrogenizing causes the deterioration of magnetic properties, such as core loss and induction. In order to prevent nitrogenizing, we investigate an Antimony treatment on the hot strip surface of electrical steel sheets containing aluminium. Potassium Antimonyl tartrate and colloidal Antimony oxides (Sb2O5) are effective against nitrogenizing. It seems that active sites on the surface of the hot strip after pickling are covered with Antimony oxides to block the adsorption of nitrogen. Magnetic properties, after cold-rolling and continuous annealing of the nitrogenizing hot band, deteriorate due to small grains near the surface whose boundaries are pinned by aluminium nitrides.
Hisao Ito - One of the best experts on this subject based on the ideXlab platform.
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Antimony in municipal waste.
Chemosphere, 1999Co-Authors: Nobuhisa Watanabe, Saburo Inoue, Hisao ItoAbstract:Abstract Antimony content in municipal waste was studied. Sampled municipal waste was dried, crushed and analyzed. Antimony determinations were performed by Kjeldahl decomposition — batch, hydride generation spectrometry and neutron activation analysis. Overall content of Antimony in waste was 40–50 g/t raw waste. It was estimated that 20 % of the annual production of Antimony was discarded as municipal waste in Japan. Leaching of Antimony from Antimony-added materials may occur, because “small tips” involved considerable amounts of Antimony.
Taisei Nakayama - One of the best experts on this subject based on the ideXlab platform.
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Effect of Antimony surface treatment on nitrogen absorption during batch annealing of an electrical steel sheet
Journal of Materials Science, 1997Co-Authors: Taisei Nakayama, Akihiro Yauchi, Takashi Tanaka, Hiroyoshi YashikiAbstract:Nitrogen absorption is usually observed during batch-type hot-band annealing of electrical steel sheets containing aluminium. This nitrogenizing causes the deterioration of magnetic properties, such as core loss and induction. In order to prevent nitrogenizing, we investigate an Antimony treatment on the hot strip surface of electrical steel sheets containing aluminium. Potassium Antimonyl tartrate and colloidal Antimony oxides (Sb2O5) are effective against nitrogenizing. It seems that active sites on the surface of the hot strip after pickling are covered with Antimony oxides to block the adsorption of nitrogen. Magnetic properties, after cold-rolling and continuous annealing of the nitrogenizing hot band, deteriorate due to small grains near the surface whose boundaries are pinned by aluminium nitrides.
Michael J. Ellwood - One of the best experts on this subject based on the ideXlab platform.
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Observations on the measurement of total Antimony and Antimony species in algae, plant and animal tissues.
Journal of Environmental Monitoring, 2005Co-Authors: Simon Foster, William A. Maher, Frank Krikowa, Kristy Telford, Michael J. EllwoodAbstract:This paper describes our experiences with undertaking measurements of total Antimony and Antimony speciation in algae, plant and animal tissues. Digestion with nitric acid alone is suitable to release Antimony from animal tissues. When organisms have high silica contents, e.g. some plants and algae, the addition of tetrafluorboric acid is required to dissolve silica as some Antimony is retained by silica in extracts. Antimony in digested extracts is present as Sb5+ and hydride generation procedures can be used to determine total Antimony concentrations, as total Antimony in extracts will not be under estimated. Relatively non-aggressive solvents such as water, dilute nitric acid, sodium hydroxide and enzymes remove highly variable amounts of Antimony (2–84%) from algae, plant and animal tissues. Addition of Sb3+ and Sb5+ to NIST CRM 1572 Citrus Leaves, pre- and post-extraction with water showed that Sb3+ is oxidised to Sb5+ while Sb5+ is redistributed amongst binding sites giving rise to artefacts. DOLT-2 and algae extracts indicated the presence of only inorganic Antimony. A moss sample had inorganic Antimony and a number of unknown Antimony species in extracts. Future studies should explore the nature of the binding of Antimony in tissues as solvents commonly used to extract metals and metalloids from algae, plant and animal tissues are not appropriate.
Nobuhisa Watanabe - One of the best experts on this subject based on the ideXlab platform.
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Antimony in municipal waste.
Chemosphere, 1999Co-Authors: Nobuhisa Watanabe, Saburo Inoue, Hisao ItoAbstract:Abstract Antimony content in municipal waste was studied. Sampled municipal waste was dried, crushed and analyzed. Antimony determinations were performed by Kjeldahl decomposition — batch, hydride generation spectrometry and neutron activation analysis. Overall content of Antimony in waste was 40–50 g/t raw waste. It was estimated that 20 % of the annual production of Antimony was discarded as municipal waste in Japan. Leaching of Antimony from Antimony-added materials may occur, because “small tips” involved considerable amounts of Antimony.