Text this: Dielectric and piezoelectric properties of PZT-silica fume cement composites

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