(K, Na)NbO3-based lead-free piezoceramics: Phase transition, sintering and property enhancement
作者： Ke Wang , Jing-Feng Li
DOI: 10.1007/S40145-012-0003-3
关键词:
摘要: Most widely used piezoelectric ceramics are based on Pb(Zr,Ti)O3 (PZT) composition which has adverse environmental and health effects due to its high lead content. Environmental safety concerns with respect the utilization, recycling, disposal of lead-based have induced a new surge in developing lead-free ceramics. Among all ceramics, (K,Na)NbO3 (KNN) drawn increasing attention because well-balanced properties better compatibility. On basis author's work, this review summarizes progress that been made recent years development KNN-based including crystallographic structure phase transition analysis, pressurized solid-state sintering as well liquid-phase-assisted process, poling treatment for property enhancement. All all, KNN is promising system, but more research still required both from academic industrial interests.
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