Manufacture of monolithic, stiff, lightweight ceramic articles

Details Manufacture of monolithic, stiff, lightweight ceramic articles Manufacture of monolithic, stiff, lightweight ceramic articles

1989-03-07

1990-12-04

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

With step of cooling to a temperature of zero degrees c. or...

264 56, 264317, 419 5, 419 40, C04B 3328

Patent

active

049752251

ABSTRACT:
A light-weight yet sturdy ceramic article, is manufactured by initially forming at least one fugitive core including a main portion and at least one holding portion projecting from the main portion and then positioning the fugitive core in a mold cavity bounded by a multitude of bounding surfaces so that the holding portion holds the main portion at predetermined spacings from all of the bounding surfaces. This is followed by filling the mold cavity around the fugitive core with a dense slip constituted by ceramic or metal particles in mixture with a liquid medium to form a ceramic or metal preform embedding the fugitive core in its interior and freezing the ceramic or metal preform, then the fugitive core is dissolved and escapes from the interior of the frozen ceramic or metal preform and finally the ceramic preform is converted into the ceramic article.

REFERENCES:
patent: 3325881 (1967-06-01), Engelking
patent: 3512571 (1970-05-01), Phelps
patent: 3848040 (1974-11-01), Confer et al.
patent: 3907949 (1975-09-01), Carlson
patent: 4341725 (1982-07-01), Weaver

Affiliated with

Also associated with

Rating

Manufacture of monolithic, stiff, lightweight ceramic articles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Manufacture of monolithic, stiff, lightweight ceramic articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manufacture of monolithic, stiff, lightweight ceramic articles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-882143