Abstract
Results of measurements of acoustic emission in PZT type ceramic in strong alternating electric field are presented. Measurements were performed with Sawyer-Tower experimental setup for poling of polarisation of these ceramic materials. Obtained signals of acoustic emission were submitted to spectrum analysis. To the interpretation of spectrum the statistical theory of noise with interactions between events was applied. Time interval parameters applied to the description of domain walls hops were found for the investigated ceramic materials.References
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[3] P. Buchman, Solid State Elektron., 15, 142 (1972).
[4] I.J. Mohamad, E.F. Lambson, A.J. Miller and G.A. Saunders, Phys., A71, 115 (1979).
[5] V.A. Kalitenko, V.M. Perga and I.N. Salivanov, Sov. Phys. Solid State, 22, 1067 (1980).
[6] M. Guyot and V. Cagan, J. Magn. Mater., 101, 256 (1991).
[7] M. Guyot and V. Cagan, J. Magn. Mater., 83, 217 (1990).
[8] H. Iwasaki and M. Izumi, Ferroelectrics, 37, 563 (1981).
[9] Y. Saito and S. Hori, Jpn. J. Appl. Phys., 33, 9B, 5558 (1994).
[10] D.G. Choi, J. Mater. Scien., 32, 2, 2, 421 (1997).
[11] M. Aleksiejuk, [in:] New testing methods of ceramic materials, p. 260, Warszawa 1998.
[12] H. Bittel, Physica, Bd 86, 1383, 1977.
[13] H. Bittel and I. Westerboer, Annalen der Phys., Bd 4, 203 (1959).
[14] B.R. Levin, Teoreticeskije osnovy statisticeskoj radiotechniki, pp. 550, Moskva 1974.
[15] P. Mazzeti, Il Nuovo Cimento, 25, 6 1323 (1962).
