أرسل هذا في رسالة قصيرة: Effect of Al<inf>2</inf>O<inf>3</inf> addition on dielectric, piezoelectric and ferroelectric properties of O.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

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