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Method and apparatus for forming ceramic surface layers

  • US 2,987,416 A
  • Filed: 07/23/1956
  • Issued: 06/06/1961
  • Est. Priority Date: 07/23/1956
  • Status: Expired due to Term
First Claim
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1. A METHOD OF FORMING ON A SUPPORT A CERAMIC SURFACE LAYER, COMPRISING, IN COMBINATION, THE STEPS OF APPLYING TO THE SURFACE OF SAID SUPPORT AT LEAST ONE INTERMEDIATE LAYER ADAPTED TO HARDEN UPON STANDING AT AMBIENT TEMPERATURE AND COMPRISING A FIRST CERAMIC-FORMING MATERIAL CONTAINING AT LEAST ONE PREBURNED CERAMIC MATERIAL THEREBY ADHERING SAID INTERMEDIATE LAYER TO SAID SURFACE OF SAID SUPPORT, ALLOWING SAID INTERMEDIATE LAYER TO HARDEN, APPLYING TO THE OUTER FACE OF SAID INTERMEDIATE LAYER AN OUTER LAYER OF A SECOND CERAMIC-FORMING MATERIAL ADAPTED TO BE AT LEAST SINTERED BY HEATING, AND HEATING SAID OUTER LAYER SO AS TO AT LEAST SINTER THE SAME, HOWEVER, SUBSTANTIALLY WITHOUT CAUSING LIQUEFACTION OF SAID INTERMEDIATE LAYER, WHEREBY SAID OUTER LAYER IS FIRMLY ADHERED TO SAID INTERMEDIATE LAYER AND SIMULTANEOUSLY A CERAMIC SURFACE IS FORMED ON SAID SUPPORT.

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