أرسل هذا في رسالة قصيرة: Fabrication of ferroelectric glass ceramics from (K<inf>0.5</inf>Na<inf>0.5</inf>)NbO<inf>3</inf>-SiO<inf>2</inf>-Al<inf>2</inf>O<inf>3</inf>glass system

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