Title :
PZT-ceramics strength control by means of small additives of glass-modifiers
Author :
Goltzov, Yu I. ; Yurkevich, V.E.
Author_Institution :
Dept. of Phys., Rostov Civil Eng. Inst., Russia
fDate :
7/1/1992 12:00:00 AM
Abstract :
Mechanical strength is increased in piezoceramics, in some cases, by introducing small additives of special glasses into the composition. The analysis of this phenomenon can be carried out only by separate consideration of mechanical properties of the single phases and the extent to which they influence the strength of piezoceramics as a whole. The leading role of the intercrystal interlayer strength and the contact crystallite-interlayer has been determined by measuring the piezoceramics strength dependence on the cation compound of glass-modifiers.<>
Keywords :
ceramics; fracture toughness; lead compounds; mechanical strength; piezoelectric materials; powder technology; sintering; PZT ceramics; PbO-B/sub 2/O/sub 3/-GeO/sub 2/ system additives; PbZrO3TiO3; contact crystallite-interlayer; dynamic strength; glass-modifiers; intercrystal interlayer strength; piezoceramics; sintering; small additives; strength control; Additives; Ceramics; Crystalline materials; Crystallization; Glass; Grain boundaries; Piezoelectric materials; Shape measurement; Stress; Underwater acoustics;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
