Mechanical Loss and Elastic Modulus Associated with Phase Transitions in PLZT Ceramics
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چکیده
منابع مشابه
Mechanical Loss and Elastic Modulus Associated with Phase Transitions in PLZT Ceramics
The phase transition in lanthanum modified lead zirconate-titanate ceramic of 6/60/40 is studied by mechanical loss Q-I and elastic modulus measurements. The shear elastic modulus measured from 50°C to 250°C shows that the Curie temperature is located at 180°C for the transition from cubic to rhombohedral phase. The Q-' curves at low frequencies show clearly a peak corresponding to such phase t...
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Elastic modulus (shear modulus G or Young's modulus E) and internal friction Q-' were measured as a function of temperature on undoped Pb(Zr50Ti50)03, Pb(Zr,2Ti.,,)03 , Pb(Zr5,Ti,)0, ceramics from -180°C to 500°C. Experiments were performed at low and medium frequencies (0.1 Hz 4 kHz). The E(T) curves show two anomalies which are due to following phase transitions: tetragonal to cubic (Tc) and ...
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ژورنال
عنوان ژورنال: Le Journal de Physique IV
سال: 1996
ISSN: 1155-4339
DOI: 10.1051/jp4:19968149