ODS-alloy of molybdenum, silicon and boron

ODS-alloy of molybdenum, silicon and boron

  • CN 1,852,999 B
  • Filed: 09/15/2004
  • Issued: 05/30/2012
  • Est. Priority Date: 09/19/2003
  • Status: Active Grant
First Claim
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1. molybdenum-silicon-boron (Mo-Si-B) alloy comprises the molybdenum silicide and the molybdenum boron silicide of intermetallic phase selectively comprising the molybdenum boride;

  • Wherein the total content of intermetallic phase composition is 25 to 90 volume %, the content<

    5 volume % of further microstructure composition, and all the other compositions are molybdenum or molybdenum sosoloid;

    It is characterized in that;

    Described molybdenum-silicon-boron alloy comprises the silicon of 0.1~

    8.9 weight %, and the boron of 0.1~

    5.3 weight %, said alloy contain 0.1~

    5 volume %'"'"'s;

    Vapour pressure under 1500 ℃

    is<

    5000Pa, one or more oxide compounds of metal;

    Said metal is selected from the one group of metal that comprises yttrium (Y), lanthanon, zirconium (Zr), hafnium (Hf), titanium (Ti), aluminium (Al), calcium (Ca), magnesium (Mg) and strontium (Sr), and all the other are molybdenum.

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