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  • 1
    Electronic Resource
    Electronic Resource
    Electrical conductivity of amorphous Ni"6"6B"3"4 films
    Amsterdam : Elsevier
    Thin Solid Films 81 (1981), S. 181-186 
    Details
    ISSN: 0040-6090
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6090(81)90305-9
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Is the DSC technique capable of determining accurate specific heats of metallic ribbons? (1992)
    Springer
    Journal of thermal analysis and calorimetry 38 (1992), S. 397-407 
    Details
    ISSN: 1572-8943
    Keywords: metallic ribbons ; specific heat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Unter Anwendung des Scanning- (Differential-) Verfahrens und einem PE DSC in kontinuierlichen Heizsystemen sowie des Integral- (Enthalpie-) Verfahrens und einem SETARAM DSC in diskontinuierlichen Heizsystemen wurde die spezifische Wärme diverser metallisch-glasartiger Bänder gemessen. Im abgeschreckten, entspannten Zustand und auch in den kristallinen Formen der Bänder konnte in der mittleren Temperaturregion eine linearec p M(T) Abhängigkeit gefunden werden. Sowohl die spezifischen Wärmen dieser Bänder bei Raumtemperatur, der zusätzliche Beitrag im entspannten glasartigen Zustand als auch im nichtentspannten glasartigen Zustand wurden bestimmt. Die Empfindlichkeit beic p M(T)-Messungen metallischer Bänder war besser als 0.2%, die Langzeitreproduzierbarkeit betrug im Falle glasartiger Bänder 2%. Sie wurden auf die Fehlergrö\en vonc p M(T)-Messungen an einem synthetischen Saphir-Standard oder an massiven Chalkogenidgläsern bezogen.
    Notes: Abstract Using the scanning (differential) method and a PE DSC in continuous heating regime as well as the integral (enthalpic) method and a SETARAM DSC in a discontinuous heating regime the specific heats of several metallic glassy ribbons were measured. The linearc p M(T) dependencies in the as-quenched, relaxed and also the stable crystalline forms of the ribbons in the medium temperature region were found. The room temperature specific heats of these ribbons, the excess contributions due to the relaxed glassy state as well as the non-relaxed glassy state were determined. The sensitivity ofc p M(T) measurements of metallic ribbons was better than 0.2%, the long term reproducibility in the case of glassy ribbons was 2%. They are related to the errors inc p M(T) measurements of synthetic sapphire standard or bulk chalcogenide glasses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01915504
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Thermomechanical analysis (TMA) correlated to differential scanning calorimetry (DSC) for ageing study of some metallic glasses (1992)
    Springer
    Journal of thermal analysis and calorimetry 38 (1992), S. 409-420 
    Details
    ISSN: 1572-8943
    Keywords: metallic glasses ; DSC ; TMA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Zur Charakterisierung des Alterns einiger metallischer Gläser wird in einer Vergleichsstudie der DSC-Methode und der thermomechanischen Analyse (TMA) die Spezifität letzterer hervorgehoben. Es wurden metallische Gläser untersucht, die entweder mittels chemischer Verfahren oder durch Schmelzverdüsen hergestellt wurden. Mittels DSC und TMA wurde festgestellt, da\ die Entspannung der metallischen Gläser stark von der Behandlungsweise abhängt, d.h. ob es sich um eine thermische oder mechanische Vorgeschichte handelt. Im Gegensatz dazu konnten bei der Kristallisation keine gro\en Unterschiede zwischen DSC und TMA gefunden werden. Anhand experimenteller Daten wurde versucht, das Verhalten derartiger Materialien unter den Betriebsbedingungen zu modellieren.
    Notes: Abstract To characterize the ageing of some metallic glasses, a correlated study of the differential scanning calorimetry method (DSC) and of the thermomechanical analysis (TMA) emphasizes the specificity of the latter. We analyzed metallic glasses which have been produced either by chemical methods or by melt spinning techniques. Using TMA and DSC, we have established that the relaxation of metallic glasses is strongly dependent on treatment applied: either thermal or mechanical history. Conversely, we do not observe large differences between DSC and TMA analysis for the crystallisation. From experimental data, we try to modelize the behaviour of this type of materials under operating conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01915505
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Effects of relaxation and phase transition on the resistivity of chemically deposited Ni66B34 layers (1986)
    Springer
    Journal of materials science 21 (1986), S. 277-283 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The effects of thermal treatment on the conductivity and the temperature coefficient of resistivity of thin amorphous layers of Ni-B metallic glasses (66% Ni, 34% B) are analysed in terms of the dependence on thickness and ageing temperature. The layer exhibits a macroscopical structure consisting of clusters in an amorphous medium; it is assumed that the cluster resistivity is temperature independent up to 350° C and that the amorphous medium is altered markedly by the ageing processes. These consequences are deduced which are in agreement with a previously proposed model for a layer structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01144732
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Experimental study of anisothermal ageing of (FeCoMo)73 (SiB)27 metallic glass (1991)
    Springer
    Journal of materials science 26 (1991), S. 4905-4909 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Metallic glasses applied by melt spinning are always interesting alloys for their industrial applications. Among the different techniques for investigation of these glasses, we chose two complementary methods: differential scanning calorimetry and thermomechanical analysis. Correlation of the experimental results obtained with these two techniques allowed us to characterize the evolution of the (FeCoMo)73 (SiB)27 amorphous alloys.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00549869
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Analyse thermique des alliages amorphes de Ni-P et Ni-B (1978)
    Springer
    Journal of thermal analysis and calorimetry 13 (1978), S. 241-252 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Résumé Les alliages de nickel-phosphore et de nickel-bore préparés pour oxydo-réduction en phase liquide sont dans leur état initial amorphes ou imparfaitement cristallisés. Au cours d'un traitement thermique approprié, une diffusion atomique précède la cristallisation du nickel, des phosphures ou des borures de nickel. Les différentes étapes de l'évolution structurale des alliages sont suivies par ATD et par diffraction X. L'évolution de la résistivité électrique de ces mêmes alliages, au cours de montées linéaires en température, confirme les résultats obtenus par ATD et diffraction X.
    Abstract: Zusammenfassung Die für Oxydoreduktionszwecke in flüssiger Phase hergestellten Nickel-Phosphor und Nickel-Bor Legierungen sind in ihrem Ausgangszustand amorf oder teilkristallin. Im Laufe einer geeigneten thermischen Behandlung geht der Kristallisation des Nickels, der Nickelphosphide und Nickelboride eine atomare Diffusion voraus. Die verschiedenen Stufen der strukturellen Entwicklung der Legierungen werden mittels DTA und Röntgendiffraktion verfolgt. Die Verfolgung des elektrischen Widerstands der Legierungen bei linearen Temperaturanstiegen bestätigte die mittels DTA und Röntgendiffraktionen erhaltenen Ergebnisse.
    Notes: Abstract The nickel-phosphorus and nickel-boron alloys prepared for oxidation-reduction in the liquid phase are amorphous or perfectly crystallized in their initial form. An atomic diffusion precedes the crystallization of nickel, nickel phosphides or nickel borides in the course of appropriate thermal treatment. The different stages of the structural development of the alloys were followed by DTA and X-ray diffraction. The changes in the electrical conductivities of the same alloys as a function of linearly increasing temperature confirmed the results obtained with the aid of DTA and X-ray diffraction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01912296
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    Paper (German National Licenses)
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