The Experts below are selected from a list of 207 Experts worldwide ranked by ideXlab platform
Ebitei Charles - One of the best experts on this subject based on the ideXlab platform.
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chromate conversion coating on al 0 2 wt fe alloy
Materials Letters, 2009Co-Authors: Ebitei CharlesAbstract:SEM and TEM investigations revealed that the chromate coating developed rapidly over the macroscopic alloy surface. The coating thickness increased over the immersion period employed in this study and was about 50 nm and 200 nm for coatings formed after 30 s and 120 s respectively. The coating is composed of chromium Compounds with Aluminium Compounds probably concentrated at the alloy/coating interface.
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chromate conversion coating on al 0 2 wt fe alloy
Materials Letters, 2009Co-Authors: Ebitei CharlesAbstract:SEM and TEM investigations revealed that the chromate coating developed rapidly over the macroscopic alloy surface. The coating thickness increased over the immersion period employed in this study and was about 50 nm and 200 nm for coatings formed after 30 s and 120 s respectively. The coating is composed of chromium Compounds with Aluminium Compounds probably concentrated at the alloy/coating interface.
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Chromate conversion coating on Al–0.2 wt.% Fe alloy
Materials Letters, 2009Co-Authors: Makanjuola Oki, Ebitei CharlesAbstract:SEM and TEM investigations revealed that the chromate coating developed rapidly over the macroscopic alloy surface. The coating thickness increased over the immersion period employed in this study and was about 50 nm and 200 nm for coatings formed after 30 s and 120 s respectively. The coating is composed of chromium Compounds with Aluminium Compounds probably concentrated at the alloy/coating interface.
J. Gal - One of the best experts on this subject based on the ideXlab platform.
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Neutron diffraction on YFe5Al7 as reference of the f-magnetism of isostructural rare earth-iron-Aluminium Compounds
Journal of Alloys and Compounds, 1995Co-Authors: Wolfgang Schäfer, Winfried Kockelmann, Georg Will, Peter Fischer, J. GalAbstract:Abstract YFe5Al7 crystallizes isostructurally with the rare earth(R)-iron-Aluminium Compounds RFe5Al7 in the tetragonal ThMn12-type structure in space group I4/mmm. Lattice parameters are refined from X-ray diffraction lines and atomic parameters and site occupancies from room and low temperature neutron diffraction intensities. Ordered cation distributions are found with Y on 2a, Fe on 8f and Al on 8i sites. 8j sites are occupied by both Fe and Al according to stoichiometry. A broad diffuse neutron peak indicates short-range structural order originating from iron clusters on 8j positions. Below 100 K, YFe5Al7 exhibits an incommensurate magnetic structure of small Fe moments (〈μ〉 = 0.5 μB) with a propagation vector close to [ 1 7 , 1 7 , 0]. Contrary to the findings in the other rare earth Compounds, no long-range ordered ferromagnetic iron sublattice comes off in YFe5Al7.
Wolfgang Schäfer - One of the best experts on this subject based on the ideXlab platform.
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Neutron diffraction on YFe5Al7 as reference of the f-magnetism of isostructural rare earth-iron-Aluminium Compounds
Journal of Alloys and Compounds, 1995Co-Authors: Wolfgang Schäfer, Winfried Kockelmann, Georg Will, Peter Fischer, J. GalAbstract:Abstract YFe5Al7 crystallizes isostructurally with the rare earth(R)-iron-Aluminium Compounds RFe5Al7 in the tetragonal ThMn12-type structure in space group I4/mmm. Lattice parameters are refined from X-ray diffraction lines and atomic parameters and site occupancies from room and low temperature neutron diffraction intensities. Ordered cation distributions are found with Y on 2a, Fe on 8f and Al on 8i sites. 8j sites are occupied by both Fe and Al according to stoichiometry. A broad diffuse neutron peak indicates short-range structural order originating from iron clusters on 8j positions. Below 100 K, YFe5Al7 exhibits an incommensurate magnetic structure of small Fe moments (〈μ〉 = 0.5 μB) with a propagation vector close to [ 1 7 , 1 7 , 0]. Contrary to the findings in the other rare earth Compounds, no long-range ordered ferromagnetic iron sublattice comes off in YFe5Al7.
Erik B Lindblad - One of the best experts on this subject based on the ideXlab platform.
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The use of Aluminium Compounds in medicine
2006Co-Authors: Erik B LindbladAbstract:Erik B. Lindblad evoque une application peu connue de l'Aluminium, l'utilisation de ses composes en medecine. Il detaille son importance dans la fabrication de vaccins. Le role cle de l'Aluminium en precipitation a ete d'abord mis en evidence lors de la mise au point de vaccins pour lutter contre la diphterie. Les specificites electriques de l'hydroxyde et du phosphate d'Aluminium font encore aujourd'hui de ses composes les principaux adjuvants des vaccins medicaux et veterinaires.
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Aluminium Compounds for use in vaccines
Immunology and cell biology, 2004Co-Authors: Erik B LindbladAbstract:Aluminium adjuvants are the most widely used adjuvants in both human and veterinary vaccines. These adjuvants have been used in practical vaccination for more than 60 years and are generally recognized as safe and as stimulators of Th2 immunity. The present review gives a short introduction to the pioneering research at the start of the use of Aluminium Compounds as adjuvants, including references on the chemistry of these Compounds. Analytical methods for identifying the most commonly used Aluminium Compounds, such as boehmite and Aluminium hydroxyphosphate, are mentioned. Emphasis is placed on the important factors for antigen adsorption and on the latest work using gene-deficient mice in the research of the mechanism of Aluminium adjuvants in terms of cytokine and T-cell subset stimulation. Key references on the ability of Aluminium adjuvants to stimulate IgE and also in vivo clearing of Aluminium adjuvants are discussed. Furthermore, the review addresses the issue of local reactions in the context of injection route and local tissue disturbance. Possible new applications of Aluminium adjuvants in, for example, combined Aluminium-adsorbed protein and DNA oligonucleotide vaccines as well as the possible use of Aluminium adjuvants in combination with IL-12 to stimulate Th1-type immune responses are mentioned.
Peter Fischer - One of the best experts on this subject based on the ideXlab platform.
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Neutron diffraction on YFe5Al7 as reference of the f-magnetism of isostructural rare earth-iron-Aluminium Compounds
Journal of Alloys and Compounds, 1995Co-Authors: Wolfgang Schäfer, Winfried Kockelmann, Georg Will, Peter Fischer, J. GalAbstract:Abstract YFe5Al7 crystallizes isostructurally with the rare earth(R)-iron-Aluminium Compounds RFe5Al7 in the tetragonal ThMn12-type structure in space group I4/mmm. Lattice parameters are refined from X-ray diffraction lines and atomic parameters and site occupancies from room and low temperature neutron diffraction intensities. Ordered cation distributions are found with Y on 2a, Fe on 8f and Al on 8i sites. 8j sites are occupied by both Fe and Al according to stoichiometry. A broad diffuse neutron peak indicates short-range structural order originating from iron clusters on 8j positions. Below 100 K, YFe5Al7 exhibits an incommensurate magnetic structure of small Fe moments (〈μ〉 = 0.5 μB) with a propagation vector close to [ 1 7 , 1 7 , 0]. Contrary to the findings in the other rare earth Compounds, no long-range ordered ferromagnetic iron sublattice comes off in YFe5Al7.