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Refractory nitride, carbide, ternary oxide, nitride/oxide, oxide/carbide, oxycarbide, and oxynitride materials and articles

  • US 5,934,900 A
  • Filed: 03/24/1997
  • Issued: 08/10/1999
  • Est. Priority Date: 03/29/1996
  • Status: Expired due to Fees
First Claim
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1. A refractory material comprising ternary or quaternary oxides having the formula Mx1 M'"'"'x2 M"x3 Oz, where M is Hf, Zr, or Ti, M'"'"' is Be, Mg, Ca, Sr, or Ba, M" is Sc, Y, or a lanthanide metal La through Lu, O is oxygen, and x1>

  • 0, x2 and x3≧

    0 but x2+x3≠

    0, and z>

    0, and having a sub-stoichiometric atomic ratio.

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