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  • 72.80.Cw  (1)
  • differential microcalorimeter  (1)
  • 1990-1994  (2)
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  • 1990-1994  (2)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 53 (1991), S. 136-140 
    ISSN: 1432-0630
    Keywords: 72.80.Cw ; 72.20.Pa ; 66.70.+f
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Electrical conductivity, thermal conductivity, and thermoelectric power of single-crystalline silicon are investigated at temperatures between 2 and 300 K. From the measured data we calculate the mean free path of electrons and phonons and separate diffusion part and phonon-drag part of the thermoelectric power. Using a new method, we evaluate the mean free path of those phonons which are responsible for the phonon drag effect.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of thermal analysis and calorimetry 38 (1992), S. 335-344 
    ISSN: 1572-8943
    Keywords: differential microcalorimeter ; heat capacity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es wird der Aufbau, die Funktions- und Arbeitsweise eines vollautomatisierten Differential-Mikrokalorimeters für Wärmekapazitätsmessungen kleiner Proben (m 〈 100 mg) im Temperaturbereich 15–300 K beschrieben. Die Funktionsweise des Gerätes beruht auf verschiedenen kalorimetrischen Methoden, insbesondere aufadiabatischem Differential-Scanning, Seine Zuverlässigkeit wird durch die Messung der Wärmekapazität einer 23 mg-Kupferprobe und einer 37 rag-Cyclopentanprobe mit einem Me\fehler von kleiner als 2% demonstriert.
    Notes: Abstract We describe the construction, operation and performance of a fully automated low temperature differential micro-calorimeter for heat capacity measurements on small samples (m 〈 100 mg) in the temperature range from 15 K to 300 K. The instrument is operated using different calorimetric methods, in particular adiabatic differential scanning. Its reliability is demonstrated by measuring the heat capacity of 23 mg of copper and 37 mg of cyclopentane with an error of less than 2%.
    Type of Medium: Electronic Resource
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