Method for preparing yttrium oxide coating of corundum crucible

Method for preparing yttrium oxide coating of corundum crucible

  • CN 103,771,886 A
  • Filed: 01/24/2014
  • Published: 05/07/2014
  • Est. Priority Date: 01/24/2014
  • Status: Active Application
First Claim
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1. prepare a method for corundum crucible yttria coating, it is characterized in that said method comprising the steps of:

  • The preparation of the first step, slurry;

    by yttrium oxide, polyoxyethylene glycol and distilled water in mass ratio 3;

    1;

    1 mix, stir to without bubble;

    The preparation of second step, coating;

    slurry described in the first step is evenly coated in to the alundum tube inwall clean through ultrasonic cleaning, and seasoning, puts into baking oven and toast 6-12 hour at 50-80 ℃

    ;

    The sintering of the 3rd step, coating;

    by the alundum tube of the good coating of the coating described in second step, put into retort furnace and carry out low-temperature sintering and high temperature sintering, then furnace cooling.

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