The preparation method of a kind of original position TiB2 and the compound reinforced aluminum matrix composites of aluminium sesquioxide

The preparation method of a kind of original position TiB2 and the compound reinforced aluminum matrix composites of aluminium sesquioxide

  • CN 100,554,463 C
  • Filed: 04/14/2004
  • Issued: 10/28/2009
  • Est. Priority Date: 04/14/2004
  • Status: Active Grant
First Claim
Patent Images

1. , a kind of founding-reaction in TiB 2Particle and Al 2O 3The preparation method of whisker complex intensifying aluminum matrix composite is characterized in that:

  • technological process comprises the preparation prefabricated section and founds two stages of aluminum matrix composite;

    A. prepare prefabricated section;

    can select two class reactants;

    The first kind;

    4Al+2Ti+4B+3O 2

    2Al 2O 3+ 2TiB 2Second class;

    4Al+2B+2O 2+ TiO 2

    2Al 2O 3+ TiB 2Said Ti, B, TiO in above-mentioned first and second class 2Be Powdered, size range;

    B is 1 μ

    m, purity 99 weight %;

    Ti, TiO 2Be 10~

    250 μ

    m, purity is greater than 96.0 weight %;

    When by the first kind combinations of reactants, the proportioning weight ratio scope of Ti and B is 1.5~

    2.8;

    1;

    When by the second class combinations of reactants, TiO 2With the proportioning weight ratio scope of B be 2.8~

    4.2;

    1;

    Above-mentioned various starting material are put into mixer by stoichiometric ratio mix, with the raw material compression moulding at room temperature that mixes, pressure range is 25~

    100MPa again;

    B. found matrix material;

    70~

    99.9% matrix alloy aluminium is put into medium-frequency induction furnace heat, Heating temperature is above 150~

    250 ℃

    of this alloy melting point;

    The prefabricated section that will account for this alloy 1~

    10 weight % again is pressed in the alloy melt, insulation;

    1~

    30 minute;

    Refining degasification aftershaping obtains reaction in TiB 2Particle and Al 2O 3Whisker complex intensifying aluminum matrix composite.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×