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Ceramic material and insulating coating made thereof

  • US 5,334,462 A
  • Filed: 06/11/1993
  • Issued: 08/02/1994
  • Est. Priority Date: 09/08/1989
  • Status: Expired due to Term
First Claim
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1. A hard insulating single phase ceramic material consisting essentially of ceria and an amount of yttria sufficient to increase the room temperature hardness by at least 50% over the room temperature hardness of ceria when measured according to the Vickers Hardness test using a 500 gram load.

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