Acoustic Emission in Testing of Selected Ceramic Bodies

• Autorzy: Ranachowski P.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a new acoustic method for monitoring of phase and polymorphous conversions during sintering of ceramic raw materials. A high-alumina electrotechnical porcelain, used in manufacturing of insulators, was chosen as an example of the application of this method. The conversions occurring in ceramic raw materials have been discussed in detail. The measuring system and the analysed descriptors of acoustic emission have been described. The results of investigation on both phase and polymorphous transitions in the range of 20 - 700°C, obtained using acoustic emission method, have been presented and compared with the results of study on DTA, TG, and the coefficient oflinearthermal expansion a. Good accordance of the results obtained by the mentioned methods and the AE descriptors was found.

• Wydawca: Silesian Division of Polish Acoustical Society
• Czasopismo: Molecular and Quantum Acoustics
• Rocznik: 1999
• Tom: Vol. 20
• Strony: 217--225
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Ranachowski P.

• Institute of Fundamental Technological Research of Polish Academy of Sciences Warsaw, Poland