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Glass or quartz articles having high temperature UV absorbing coatings containing ceria

  • US 5,316,854 A
  • Filed: 12/06/1991
  • Issued: 05/31/1994
  • Est. Priority Date: 12/06/1991
  • Status: Expired due to Fees
First Claim
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1. A coated article comprising a substrate of glass or quartz and a coating having an absorbance of 1 to 3 per micron of thickness at 320 nanometers and consisting essentially of colloidal particles of cerium oxide in a silica-based matrix and having a minimum concentration on the order of 40 weight percent of cerium oxide based on the total metal oxide content of said matrix containing said cerium oxide particles, said coated article being essentially craze free and essentially optically clear at 1000°

  • C.

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