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Title: High temperature sound velocity measurement with piezoelectric transducers
Authors: Alves, J. Maia
Vallêra, A. M.
Keywords: Piezoelectric transducers
Issue Date: 1997
Publisher: American Institute of Physics
Abstract: A technique for high temperature sound velocity measurement using piezoelectric transducers, that avoids the existence of the usual high temperature bond between the sample and the buffer, was developed. This bond is frequently responsible for a large attenuation and distortion of the sound field, with a consequent inaccuracy in the experimental results. This technique was successfully used by the authors to make good quality measurements of sound velocity in iron silicon single crystals from room temperature to T 1000 °C, unlike other authors who report strong attenuation in different regions of this temperature range for similar samples. The furnace, which is only 35 mm wide, allows work under magnetic field and a controlled atmosphere up to 1300 °C.
Appears in Collections:FC-DF - Artigos em Revistas Internacionais

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