Heat-resistant porous structural material

Details Heat-resistant porous structural material Heat-resistant porous structural material

1976-06-21

1977-07-12

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428309, B32B 516, B32B 1500

Patent

active

040355454

ABSTRACT:
A material, comprising 50-75 volume percent of microspheres of high-melting point oxides, sintered directly with each. The diameter of said microspheres ranges from 10 to 200 mu. The diameter of contact of said sintered microspheres amounts to 0.2-0.5 of said microsphere diameter.
The present invention enabled an enhancement of recrystallization resistance, strength and deformability of said heat-resistant porous structural material. Thus, a material made of microspheres of stabilized zirconium oxide, 30-40 mu in diameter, with a contact diameter equal to 0.3 of the microsphere diameter and a 30% porosity exhibits a compression strength of 6000 kg/cm.sup.2, a tensile strength of 500 kg/cm.sup.2 and 0.01 elongation at room temperature, which constitutes a 5-10 -fold increase, as compared with the corresponding characteristics of the known granular materials of a similar composition.

REFERENCES:
patent: 3719519 (1973-03-01), Pergugini
patent: 3856709 (1974-12-01), Porta et al.

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