Polycrystalline, translucent sintered tubes

Details Polycrystalline, translucent sintered tubes Polycrystalline, translucent sintered tubes

1986-06-20

1988-02-16

Kittle, John E.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

501104, 501153, 264 63, C04B 3510, C04B 3564

Patent

active

047254670

ABSTRACT:
An improved process for producing polycrystalline, translucent sintered aluminum oxide tubes for use as high pressure gas discharge lamps is provided, in which an aluminum oxide powder mixture is dispersed and foamed prior to plasticizing. Into the dried powder plasticizing components based on PVA or low viscosity, weakly swelling methylcellulose adhesives in the form of a paste are mixed and the powder mixture subsequently cold formed to tubular form by extrusion. The application of these measures results not only in an especially low surface roughness with an average value of 0.2 micron, but also in a mechanical strength of at least 320 N/mm.sup.2 and an in-line light transmission of more than 64%.

REFERENCES:
patent: 3905845 (1975-09-01), Kobayashi et al.

Affiliated with

Also associated with

Rating

Polycrystalline, translucent sintered tubes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polycrystalline, translucent sintered tubes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polycrystalline, translucent sintered tubes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2220371