Aluminum titanate ceramic and preparation method thereof

Aluminum titanate ceramic and preparation method thereof

  • CN 102,584,220 B
  • Filed: 02/09/2012
  • Issued: 07/08/2015
  • Est. Priority Date: 02/09/2012
  • Status: Active Grant
First Claim
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1. prepare a method for alumina titanate ceramics, comprising:

  • Choose aluminium sesquioxide content (weight) alumine between 75%-80%;

    Selected alumine, technical pure aluminium sesquioxide, technical pure titanium dioxide and additive are mixed rear generation solid state reaction and obtains aluminium titanates micro mist;

    AndBy shaping for gained aluminium titanates micro mist and in argon gas sintering prepare alumina titanate ceramics,Wherein alumine, weight ratio between technical pure aluminium sesquioxide and technical pure titanium dioxide are;

    19;

    39;

    42;

    Additive comprises lanthanum trioxide and zinc oxide, and wherein the add-on of lanthanum trioxide is 1% of alumine, technical pure aluminium sesquioxide and technical pure titanium dioxide gross weight;

    The add-on of zinc oxide is 3% of alumine, technical pure aluminium sesquioxide and technical pure titanium dioxide gross weight;

    The temperature of solid state reaction is 1400 DEG C;

    AndSintering temperature is 1400 DEG C;

    Sintering time is 5 hours;

    Wherein the composition (weight percent) of selected alumine is as shown in the table;

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