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6 Result(s)

within A. Lorenz Remove this filter Characterization and Evaluation of Materials Remove this filter

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  1. No Access

    Article

    Dispersion of multiferroic BiFeO3 nanoparticles in nematic liquid crystals

    Dispersion of ferroelectric- and ferromagnetic nanoparticles in liquid crystals (LCs) is investigated in the last decades. Recently, do** multiferroic-BiFeO3 nanoparticles in the LCs has become of interest. The...

    F. Jahanbakhsh, J. B. Poursamad, M. H. Majles Ara, A. Lorenz… in Applied Physics A (2019)

  2. No Access

    Chapter and Conference Paper

    Principle, Applications and Limitations of Ultrasound Elastography

    Mechanical properties of biological tissue are of histological relevance because of a correlation between palpable lesions (e.g. nodes) and malignant tumors. The majority of cancerous lesions can be palpated a...

    K. M. Hiltawsky, W. Khaled, A. Lorenz, C. Perrey, A. Pesavento… in Acoustical Imaging (2004)

  3. No Access

    Article

    The Influence of Bi2O3 and Sb2O3 on the Electrical Properties of ZnO-Based Varistors

    This work presents a study of the influence of both Bi content and Sb/Bi ratio on the electrical characteristics of a commercial-type ZnO varistor. In contrast to previous studies two nonlinear coefficients, t...

    J. Ott, A. Lorenz, M. Harrer, E.A. Preissner, C. Hesse… in Journal of Electroceramics (2001)

  4. No Access

    Article

    Modified Citrate Gel Techniques to Produce ZnO-Based Varistors (Part II—Electrical Characterisation)

    The electrical characteristics of doped ZnO pellets prepared by novel, modified citrate gel routes and the conventional mixed oxide route were compared. The mixed oxide route produced rather inhomogeneous mate...

    A. Lorenz, J. Ott, M. Harrer, E.A. Preissner, A.H. Whitehead… in Journal of Electroceramics (2001)

  5. No Access

    Article

    Modified Citrate Gel Techniques to Produce ZnO-Based Varistors (Part I—Microstructural Characterisation)

    Two novel chemical processing routes were developed for the production of ZnO-based varistor powders and compared with the conventional mixed-oxide route. The central idea behind the new techniques was to sepa...

    A. Lorenz, J. Ott, M. Harrer, E.A. Preissner, A.H. Whitehead… in Journal of Electroceramics (2001)

  6. No Access

    Article

    Measurements of impact properties of small, nearly spherical particles

    The authors report impact properties for collisions of small, nearly spherical particles that present interesting experimental challenges. They consider difficulties arising with surface reflectivity, slight a...

    A. Lorenz, C. Tuozzolo, M. Y. Louge in Experimental Mechanics (1997)