• 首页
  •  
  • 产品
  •  
  • 宝石材料
 
宝石材料

 

Sapphire is a single crystal aluminum oxide (Al2O3). Its Mohs hardness is 9, it is one of the hardest materials. Sapphire has good mechanical strength, and it is also transparent from visible to IR spectrum. So, it is always used as window material where scratch resistance is required.

  • Lattice Constant: a =4.75 A; c =12.97A
  • Transparent Range: 180nm ~ 4500nm
  • Density: 3.98g/cm3
  • Mohs Hardness: 9
  • Melting Point: 2030℃
  • Thermal Conductivity: 0.04W/m/K
  • Expansion Coefficient: 8.4x10-6/K
  • Refractive Index: 1.755@1um
 

 

 

Sapphire Material


   PDF to download

 
国产成人a区在线观看视频_精品国产自在现线免费观看_国语精品福利自产拍在线观看