أرسل هذا في رسالة قصيرة: Effect of composition on electrical properties of lead-free Bi<inf>0.5</inf>(Na<inf>0.80</inf>K<inf>0.20</inf>)<inf>0.5</inf>TiO<inf>3</inf>-(Ba<inf>0.98</inf>Nd<inf>0.02</inf>)TiO<inf>3</inf>piezoelectric ceramics

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