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HIGH STRENGTH, SCRATCH RESISTANT AND TRANSPARENT GLASS-BASED MATERIALS

  • US 20160280589A1
  • Filed: 03/22/2016
  • Published: 09/29/2016
  • Est. Priority Date: 03/24/2015
  • Status: Active Grant
First Claim
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1. A glass-based material, the glass-based material comprising a glass phase and a second phase that is different than the glass phase and dispersed within the glass phase, wherein the glass-based material has a transmittance of at least about 88% over a visible spectrum ranging from about 400 nm to about 700 nm and a fracture toughness of at least about 0.9 MPa·

  • m1/2, and wherein a surface of the glass-based material, when scratched with a Knoop diamond at a load of at least 5 N to form a scratch having a width w, is free of chips having a size of greater than 3w.

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