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- Brillo, Juergen, et al.
(author)
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Density and excess volumes of liquid copper, cobalt, iron and their binary and ternary alloys
- 2006
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In: International Journal of Materials Research. - : Walter de Gruyter GmbH. - 1862-5282 .- 2195-8556. ; 97:11, s. 1526-1532
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Journal article (peer-reviewed)abstract
- The densities of liquid copper, cobalt, and iron, their binary and ternary alloys have been measured over a temperature range including the undercooled regime. A non-contact technique was used, consisting of electromagnetic levitation combined with optical dilatometry. For all samples, the density was a linear function of temperature. The concentration dependence was studied by means of the excess volume which was negligible for Co-Fe and positive for Cu-Fe, Cu-Co, and Cu-Co-Fe. The density of the ternary alloy could be predicted from the excess volumes of the binary phases without the need to introduce any ternary interactions.
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- Brillo, Jürgen, et al.
(author)
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Density and excess volumes of liquid copper, cobalt, iron and their binary and ternary alloysRead More: http://www.hanser-elibrary.com/doi/abs/10.3139/146.101415
- 2006
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In: International Journal of Materials Research - Zeitschrift für Metallkunde. - : Walter de Gruyter GmbH. - 1862-5282 .- 2195-8556. ; 97:11, s. 1526-1532
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Journal article (other academic/artistic)abstract
- The densities of liquid copper, cobalt, and iron, their binary and ternary alloys have been measured over a temperature range including the undercooled regime. A non-contact technique was used, consisting of electromagnetic levitation combined with optical dilatometry. For all samples, the density was a linear function of temperature. The concentration dependence was studied by means of the excess volume which was negligible for Co–Fe and positive for Cu–Fe, Cu–Co, and Cu–Co–Fe. The density of the ternary alloy could be predicted from the excess volumes of the binary phases without the need to introduce any ternary interactions.
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- Brillo, J., et al.
(author)
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Density and surface tension of liquid ternary Ni-Cu-Fe alloys
- 2006
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In: International journal of thermophysics. - : Springer Science and Business Media LLC. - 0195-928X .- 1572-9567. ; 27:6, s. 1778-1791
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Journal article (peer-reviewed)abstract
- The density and surface tension of liquid Ni-Cu-Fe alloys have been measured over a wide temperature range, including the undercooled regime. A non-contact technique was used, consisting of an electromagnetic levitator equipped with facilities for optical densitometry and oscillating drop tensiometry. At temperatures above and below the liquidus point, the density and surface tension are linear functions of temperature. The concentration dependence of the density is significantly influenced by a third-order (ternary) parameter in the excess volume. The surface tensions are rather insensitive to substitution of the two transition metals Ni, Fe against each other and depend only on the copper concentration. By numerically solving the Butler equation, the surface tension of the ternary system can be derived from the thermodynamic potentials (E)G of the binary phases (Ni-Cu, Fe-Cu, Ni-Fe) alone.
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- Brillo, J., et al.
(author)
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Density and surface tension of liquid ternary Ni-Cu-Fe alloys
- 2006
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In: Zeitschrift für Metallkunde. - 0044-3093. ; 97:1, s. 28-34
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Journal article (peer-reviewed)abstract
- Density and surface tension of liquid Ni-Cu-Fe alloys have been measured over a wide temperature range, including the undercooled regime. A non-contact technique was used, consisting of an electromagnetic levitator, an optical densitometer, and an oscillating drop tensiometer. At temperatures above and below the liquidus point, density and surface tension are linear functions of temperature. The concentration dependence of the density is significantly influenced by a third-order (ternary) parameter in the volume, while the surface tensions can be derived from the thermodynamic potentials (E)G of the binary phases alone.
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- Cao, Weimin, et al.
(author)
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Theoretical investigation of sulfur adsorption on FE (100)
- 2009
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In: TMS 2009 138TH ANNUAL MEETING & EXHIBITION - SUPPLEMENTAL PROCEEDINGS, VOL 3. - WARRENDALE : MINERALS, METALS & MATERIALS SOC. - 9780873397407 ; , s. 523-528
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Conference paper (peer-reviewed)abstract
- The electronic and structural properties of atomic sulfur adsorbed on the iron surface (100) are examined by using density functional theory (DFT). The sulfur coverage is considered from a quarter of one monolayer (ML) to a full monolayer, and the adsorption energy and work function are calculated for three different adsorption sites of sulfur. Our calculated results indicate that the most likely site for S adsorption is the hollow site on Fe (100), which is agreement with experiment. In addition, at 1 ML coverage, the work function increased after the S adsorption on the Fe (100) surface, which implies that charge transfer from the surface to sulfur has taken place. The results are in agreement with previous theoretical work.
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