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Phosphate binders for metal-matrix composites

  • US 5,536,686 A
  • Filed: 10/20/1992
  • Issued: 07/16/1996
  • Est. Priority Date: 10/20/1992
  • Status: Expired due to Fees
First Claim
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1. A preform for preparing metal matrix composite comprising:

  • a reinforcement material; and

    a binder applied to said reinforcement material, said binding comprising a type A aluminum metaphosphate, a Group IIa metal metaphosphate, or combination of a type A aluminum metaphosphate and a Group IIa metal metaphosphate, wherein said binder has an excess of phosphorus in an atomic ratio of phosphorus to aluminum of 3.4 to 7 or in an atomic ratio of phosphorus to Group IIa metal of 3.4 to 7.

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