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Internal combustion engine and composite parts formed from silicon carbide fiber-reinforced ceramic or glass matrices

  • US 4,341,826 A
  • Filed: 05/14/1980
  • Issued: 07/27/1982
  • Est. Priority Date: 02/13/1980
  • Status: Expired due to Term
First Claim
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1. An internal combustion engine combustion chamber component comprising a plurality of substantially titanium-free ceramic layers selected from the group consisting of (a) aluminosilicate, (b) lithium aluminosilicate, (c) magnesium aluminosilicate, and (d) mixtures thereof, each layer reinforced with a plurality of unidirectional, continuous length silicon carbide fibers, each layer having an axial flexural strength greater than 70,000 psi, a high fracture toughness exemplified by a critical stress intensity factor greater than 10×

  • 103 psi (inch)1/2, high temperature strength, high temperature oxidation stability, and good insulating properties.

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