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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Electrical engineering 60 (1978), S. 227-233 
    ISSN: 1432-0487
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Description / Table of Contents: Contents Mixing rules of the electric conductivity and of the dielectric constant of compressed powder combinations are fairly well understood. On the other hand, the Hall effect hardly has been studied so far, in spite to the fact that Hall measurements are the sole means to evaluate the carrier mobility in compressed powders. Mixing rules concerning the Hall coefficient are rather complicated. The mean Hall mobility of a powder combination, however, simply is given by the volumetric ratio of components. Investigating mixtures of pyrolusite and lead dioxide powders, these linear mixing rules have been verified clearly.
    Notes: Übersicht Die Mischungsregeln für die elektrische Leitfähigkeit und für die Dielektrizitätskonstante von Mischkomprimaten sind verhältnismäßig gut bekannt. Dagegen ist der Hall-Effekt bisher kaum untersucht worden, obwohl er das einzige Mittel ist, um die Träger-Beweglichkeit in komprimierten Pulvern zu ermitteln. Die Mischungsregel für die Hall-Konstante selbst ist kompliziert. Die mittlere Hall-Beweglichkeit einer Pulvermischung dagegen hängt linear mit dem volumetrischen Mischungsverhältnis zusammen. An Mischungen aus Pyrolusit-und PbO2-Pulver wird diese einfache Mischungsregel experimentell bestätigt.
    Type of Medium: Electronic Resource
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