Silicon carbide whisker composite material with low non whisker

Details Silicon carbide whisker composite material with low non whisker Silicon carbide whisker composite material with low non whisker

1983-09-28

1985-07-23

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428285, 428289, 428367, 428372, 428389, 428698, B22F 100, B22F 900

Patent

active

045308756

ABSTRACT:
A composite material is made from a whisker body of silicon carbide whiskers containing not more than 5% by weight of non whisker particles of diameter greater than 150 microns, with a mass of matrix metal infiltrated into the interstices of the whisker body. The matrix metal is selected from the group consisting of aluminum, magnesium, tin, copper, lead, zinc, and their alloys. The bulk density of the silicon carbide whiskers is at least 0.07 gm/cm.sup.3. A method is also disclosed for making this composite material, in which first a quantity of silicon carbide whiskers containing not more than 5% by weight of non whisker particles of diameter greater than 150 microns is formed into a shaped mass with a compressive strength of at least 0.5 kg/cm.sup.2 and with a bulk density of at least 0.07 gm/cm.sup.3, and then this shaped mass is compounded with a quantity of the molten matrix metal by a pressure casting method. This formed mass of silicon carbide whiskers may be bound together by an inorganic binder, whicn may be silica, and whose volume percentage in the shaped mass of silicon carbide whiskers may desirably be less than about 25%.

REFERENCES:
patent: 3098723 (1963-07-01), Micks
patent: 3432295 (1969-03-01), Frank et al.

Affiliated with

Also associated with

Rating

Silicon carbide whisker composite material with low non whisker does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Silicon carbide whisker composite material with low non whisker , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silicon carbide whisker composite material with low non whisker will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-634392