أرسل هذا في رسالة قصيرة: Effect of MnO<inf>2</inf> addition on dielectric, piezoelectric and ferroelectric properties of 0.2Pb(Zn<inf>1/3</inf>Nb<inf>2/3</inf>)O <inf>3</inf>-0.8Pb(Zr<inf>1/2</inf>Ti<inf>1/2</inf>)O<inf>3</inf> ceramics

 __   __    _____     _____      ___      ______  
 \ \\/ //  |  ___||  / ____||   / _ \\   /_____// 
  \   //   | ||__   / //---`'  / //\ \\  `____ `  
  / . \\   | ||__   \ \\___   |  ___  || /___//   
 /_//\_\\  |_____||  \_____|| |_||  |_|| `__ `    
 `-`  --`  `-----`    `----`  `-`   `-`  /_//     
                                         `-`