أرسل هذا في رسالة قصيرة: Sintering behavior of triol sol-gel derived Nb-doped PZT ceramics: Effects on phase, microstructure and electrical properties

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