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Wilhelm, M.
Siemens A.G., Berlin (Germany, F.R.); Siemens A.G., Muenchen (Germany, F.R.)1980
Siemens A.G., Berlin (Germany, F.R.); Siemens A.G., Muenchen (Germany, F.R.)1980
AbstractAbstract
[en] A superconductor with a superconducting intermetallic compound consisting of at least two elements can be manufactured by producing a conductor preproduct with a first component containing one element of the compound and a second component consisting of a carrier metal and the remaining element or elements of the alloy containing the compound, and by heat treating the conductor preproduct, so that the compound is formed by the reaction of the element of the first compound with the remaining element or elements of the second compound. In such a superconductor, one tries to increase the effective current density and critical current. The invention states that the heat treatment should be carried out in a hydrogen atmosphere. Superconductors produced by this process can be used for superconductor devices whose magnetic fields have a flux density above 10 Tesla. (orig.)
[de]
Ein Supraleiter mit einer supraleitenden intermetallischen Verbindung aus wenigstens zwei Elementen laesst sich dadurch herstellen, dass ein Leitervorprodukt mit einer ersten, ein Element der Verbindung enthaltenden Komponente und mit einer zweiten Komponente, die aus einer ein Traegermetall und das restliche Element bzw. die restlichen Elemente der Verbindung enthaltenden Legierung gebildet ist, erstellt wird und dass das Leitervorprodukt einer solchen Waermebehandlung unterzogen wird, dass die Verbindung durch Reaktion des Elementes der ersten Komponente mit dem restlichen Element bzw. den restlichen Elementen der zweiten Komponente gebildet wird. Bei einem solchen Supraleiter ist man bestrebt, dessen effektive Stromdichte und kritischen Strom zu erhoehen. Die Erfindung sieht hierzu vor, dass die Waermebehandlung in einer Wasserstoffatmosphaere vorgenommen wird. Nach diesem Verfahren hergestellte Supraleiter koennen insbesondere fuer supraleitende Einrichtungen vorgesehen werden, deren Magnetfelder Flussdichten oberhalb von 10 Tesla haben. (orig.)Original Title
Verfahren zur Herstellung eines Supraleiters mit einer intermetallischen Verbindung
Source
22 Jan 1980 (APP); 23 Jul 1981 (PUB); 10 p; DE PATENT DOCUMENT 3002196/A/; Available from Deutsches Patentamt, Muenchen (Germany, F.R.); ?: 23 Jul 1981 (PUB)
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Patent
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Wilhelm, M.
Siemens A.G., Berlin (Germany, F.R.); Siemens A.G., Muenchen (Germany, F.R.)1981
Siemens A.G., Berlin (Germany, F.R.); Siemens A.G., Muenchen (Germany, F.R.)1981
AbstractAbstract
[en] A superconductor with a superconducting intermetallic compound consisting of at least two elements can be manufactured by producing a conductor preproduct with a first component containing one element of the compound and a second component consisting of a carrier metal and the remaining element or elements of the alloy containing the compound and by heat treating the conductor preproduct, so that the compound is formed by the reaction of the element of the first compound with the remaining element or elements of the second compound. In such a superconductor, one tries to increase the effective current density and critical current. The invention states that the heat treatment to produce the superconducting compound should be carried out in a hydrogen atmosphere. Superconductors produced by this process can be used for superconducting devices, whose magnetic fields have flux densities above 10 Tesla. (orig.)
[de]
Ein Supraleiter mit einer supraleitenden intermetallischen Verbindung aus wenigstens zwei Elementen laesst sich dadurch herstellen, dass ein Leitervorprodukt mit einer ersten, ein Element der Verbindung enthaltenden Komponente und mit einer zweiten Komponente, die aus einer ein Traegermetall und das restliche Element bzw. die restlichen Elemente der Verbindung enthaltenden Legierung gebildet ist, erstellt wird und das Leitervorprodukt einer solchen Waermebehandlung unterzogen wird, dass die Verbindung durch Reaktion des Elementes der ersten Komponente mit dem restlichen Element bzw. den restlichen Elementen der zweiten Komponente gebildet wird. Bei einem solchen Supraleiter ist man bestrebt, dessen effektive Stromdichte und kritischen Strom zu erhoehen. Die Erfindung sieht hierzu vor, dass nach der Waermebehandlung zur Bildung der supraleitenden Verbindung eine thermische Nachbehandlung in einer Wasserstoffatmosphaere vorgenommen wird. Nach diesem Verfahren hergestellte Supraleiter koennen insbesondere fuer supraleitende Einrichtungen vorgesehen werden, deren Magnetfelder Flussdichten oberhalb von 10 Tesla haben. (orig.)Original Title
Verfahren zur Herstellung eines Supraleiters mit einer intermetallischen Verbindung
Source
23 Jul 1981; 12 p; DE PATENT DOCUMENT 3002177/A/; Available from Deutsches Patentamt, Muenchen (Germany, F.R.)
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Patent
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AbstractAbstract
[en] Mechanical properties of materials are strongly dependent of their atomic arrangement as well as the sample dimension, particularly at the micrometer length scale. In this study, we investigated the small-scale mechanical properties of single-crystalline YCd6, which is a rational approximant of the icosahedral Y-Cd quasicrystal. In situ microcompression tests revealed that shear localization always occurs on {101} planes, but the shear direction is not constrained to any particular crystallographic directions. Furthermore, the yield strengths show the size dependence with a power law exponent of 0.4. Shear localization on {101} planes and size-dependent yield strength are explained in terms of a large interplanar spacing between {101} planes and the energetics of shear localization process, respectively. The mechanical behavior of the icosahedral Y-Cd quasicrystal is also compared to understand the influence of translational symmetry on the shear localization process in both YCd6 and Y-Cd quasicrystal micropillars. The results of this study will provide an important insight in a fundamental understanding of shear localization process in novel complex intermetallic compounds.
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Source
Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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AbstractAbstract
[en] Highlights: • Diffuse electron systems. • Vertical ionization energy. • Basis set effect. • Electron correlation (MP2, CC). Present investigation reveals that diffuse electron compounds M2X predict large (106 a.u.) γav value. The basis set dependence of γav showed that the quality of basis function rather than its size is more important. Sadlej’s Pol basis set which is nearly four times less in size than aug-cc-pVQZ can give reliable estimate of γav. MP2 method in conjunction with large basis sets can give comparable results of γav that could be obtained from CCSD or CCSD(T). Higher order energy correction to MP2 leads to oscillatory behavior but inclusion of triple excitations to CCSD improves the magnitude of γav.
Primary Subject
Source
S000926141730787X; Available from http://dx.doi.org/10.1016/j.cplett.2017.08.026; Copyright (c) 2017 Elsevier B.V. All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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Godovikov, S.K.; Zolotukhin, O.A.; Ivanova, T.I.
Programme and abstracts of the 5. International conference on nuclear spectroscopic investigations of hyperfine interactions (NSI-HFI-5)1993
Programme and abstracts of the 5. International conference on nuclear spectroscopic investigations of hyperfine interactions (NSI-HFI-5)1993
AbstractAbstract
[en] Short communication
Original Title
Messbauehrovskie i magnitnye issledovaniya soudinenij SmFe11-xCoxTi
Source
Godovikov, S.K.; Parfenova, V.P. (eds.); Joint Inst. for Nuclear Research, Dubna (Russian Federation); AN SSSR, Moscow (Russian Federation). Fizicheskij Inst.; Moskovskij Gosudarstvennyj Univ., Moscow (Russian Federation); Moskovskij Gosudarstvennyj Univ., Moscow (Russian Federation). Nauchno-Issledovatel'skij Inst. Yadernoj Fiziki; 185 p; 1993; p. 119; 5. International conference on nuclear spectroscopic investigations of hyperfine interactions (NSI-HFI-5); 5. Mezhdunarodnoe soveshchanie po yaderno-spektroskopicheskim issledovaniyam sverkhtonkikh vzaimodejstvij; Dubna (Russian Federation); 22-24 Sep 1993
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Miscellaneous
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Conference
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AbstractAbstract
[en] In this study, overlap welding of AA5754 and galvanized steel sheets was carried out by cold metal transfer (CMT) method using ER4043 (AlSi5 ) filler wire. The effect of heat input on the formation of intermetallic compound (IMC) layer between steel and aluminum was investigated. Mechanical properties of the joints were determined by tensile and hardness tests and also applying nano indentation test to intermetallic layer. Chemical compositions of IMC were analyzed by EDX and the formation of Al7.2Fe1.8Si and Fe2Al5 phases was detected. Formation of Fe2Al5 phase was found detrimental for reliability of joint, although it’s superior mechanical strength
[es]
En este estudio, la soldadura por solapamiento de AA5754 y chapas de acero galvanizado se llevó a cabo mediante el método de transferencia de metal en frío (CMT) utilizando un hilo de relleno ER4043 (AlSi5 ). Se investigó el efecto del aporte de calor sobre la formación de la capa de compuesto IIntermetálico (IMC) entre el acero y el aluminio. Las propiedades mecánicas de las juntas se determinaron mediante ensayos de tracción y dureza y también aplicando la prueba de nano indentación a la capa intermetálica. Las composiciones químicas de IMC se analizaron mediante EDX y se detectó la formación de fases Al7.2Fe1.8Si y Fe2Al5 . La formación de la fase Fe2Al5 fue perjudicial para la fiabilidad de la articulación, aunque su resistencia mecánica es superiorOriginal Title
Consideración sobre la soldadura de transferencia de metal frio de AA5754 al acero galvanizado a partir de aspectos mecánicos y microestructurales
Primary Subject
Source
Availability from http://revistademetalurgia.revistas.csic.es/index.php/revistademetalurgia/issue/view/137
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Journal Article
Journal
Revista de Metalurgia; ISSN 0034-8570;
; v. 54(1); 8 p

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Yen, Yee-wen; Liou, Wei-kai; Chen, Wan-ching; Chiu, Chao-wei, E-mail: ywyen@mail.ntyust.edu.tw2013
AbstractAbstract
[en] Highlights: •Sn–9 wt%Zn-xCu alloys reacted with Au substrate was first systematically investigated. •IMC formation in the SZ–xCu/Au systems is very sensitive to the Cu concentration and the aging time. •This information is very interesting and valuable for soldering community. -- Abstract: Aging and Cu concentration effects on the interfacial reactions between Sn–9 wt%Zn–x wt%Cu (SZ–xCu) alloys and the Au substrate were investigated in this study. The Au3Zn7/AuZn2/AuZn and Au3Zn7/AuZn phases were formed in the SZ/Au and SZ–1Cu/Au couples aged at 160 °C for 24 h. Only the AuSn phase was found in the SZ–4Cu/Au couple aged at 160 °C for 24 h. When the aging time was extended to 800 h the Sn atoms became the dominant diffusion element. Binary Au–Sn phases and the metastable Au–Zn–Sn ternary phase were formed at the interface in the SZ–xCu couples when the Cu content was 1–4 wt%. When the Cu content was increased to 7–10 wt% AuSn and (Cu, Au)Sn phases were observed at the alloy/Au interface aged at 160 °C for 24 h. After 800-h heat treatment the SZ–xCu systems were transformed completely into the Cu–Sn/Au systems. The (Cu, Au)SnAuSn and Cu6Sn5/AuSn were formed in the SZ–7Cu/Au and SZ–10Cu/Au couples. The results indicate that the evolution of intermetallic compounds (IMCs) was very sensitive to the Cu concentration in the SZ solders and the heat treatment period
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S0925-8388(13)01110-9; Available from http://dx.doi.org/10.1016/j.jallcom.2013.04.178; Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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[en] Highlights: • A timely review based on the dealloying-enabled hierarchical porous metals. • A comprehensive summary of principles for hierarchical porous metals by dealloying. • We emphasise the integration of other manufacturing methods with dealloying. • The outstanding performances of dealloying-enabled hierarchical porous metals. - Abstract: Hierarchical porous materials exist widely in nature as a result of the survival rules of nature. Inspired by the unique properties of these native hierarchical porous materials, researchers have long endeavoured to develop hierarchical porous metal materials for specific industrial needs. This review discusses the developments to date in hierarchical porous metallic materials by focusing on dealloying-enabled hierarchical porous structures, with or without the combination of other manufacturing processes, and their distinctive properties and industrial applications. It is shown that the dealloying method opens up new avenues in the creation of functional hierarchical porous metals for a wide variety of promising applications.
Primary Subject
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S0010938X17316906; Available from http://dx.doi.org/10.1016/j.corsci.2018.02.013; Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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AbstractAbstract
[en] Abstract only
Source
Israel Physical Society, Jerusalem (Israel); Bull. Isr. Phys. Soc; v. 37; 135 p; 1991; p. 117; Israel physical society 1991 annual meeting; Beer-Sheva (Israel); 27 Mar 1991
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Miscellaneous
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Petit, Leon; Szotek, Zdzislawa; Jackson, Jerome; Lüders, Martin; Paudyal, Durga
Ames Laboratory (AMES), Ames, IA (United States). Funding organisation: USDOE Office of Science - SC, Basic Energy Sciences (BES) (SC-22) (United States)2017
Ames Laboratory (AMES), Ames, IA (United States). Funding organisation: USDOE Office of Science - SC, Basic Energy Sciences (BES) (SC-22) (United States)2017
AbstractAbstract
[en] Here, using first-principles calculations, based on disordered local moment theory, combined with the self-interaction corrected local spin density approximation, we study magnetic interactions in GdX intermetallics for X = Cu, Zn, Ga, Cd, and Mg. Our predicted magnetic orders and ordering temperatures both at zero and other pressures agree well with experiments including the large increase in the Curie temperature of GdCd under pressure that is shown by our own experimental measurements. From our results it emerges that the Ruderman-Kittel-Kasuya-Yosida interaction on its own can not explain the observed behaviour under pressure, and that the magnetic ordering mechanism is strongly influenced by the occupations of both Gd and anion d-bands.
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Secondary Subject
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IS-J--9532; OSTIID--1415798; AC02-07CH11358; EP/J06750/1; Available from http://www.osti.gov/pages/servlets/purl/1415798; DOE Accepted Manuscript full text, or the publishers Best Available Version will be available free of charge after the embargo period; Country of input: United States
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Journal Article
Journal
Journal of Magnetism and Magnetic Materials; ISSN 0304-8853;
; v. 448(C); p. 9-12

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