High surface area silicon nitride and use thereof

Details High surface area silicon nitride and use thereof High surface area silicon nitride and use thereof

1989-03-16

1991-04-02

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Refractory

501 98, 502263, C04B 3556, C04B 3558

Patent

active

050047094

ABSTRACT:
This invention relates to a ceramic article having a crystalline and continuous silicon nitride phase, iron and a rare earth oxide, the article having a surface area of at least 3.5 m.sup.2 /g, a thermal expansion coefficient smaller than 6.times.10.sup.-6 m/m/.degree.C. measured in the range 20.degree.-800.degree. C. and a porosity of at least 30%. The ceramic article may also contain a discrete porous oxide phase such as alumina, aluminates, silica, spinel, titania, zirconia, zeolites and mixtures thereof. Further, the porous oxide may also contain a metal oxide such as barium oxide, nickel oxide, iron oxide, rare earth oxides and mixtures thereof. The ceramic article may be used as a catalyst support. Methods of manufacturing the ceramic article are also disclosed.

REFERENCES:
patent: 3993572 (1976-11-01), Hindin et al.
patent: 4332909 (1982-06-01), Nishida et al.
patent: 4365022 (1982-12-01), Tabata et al.
patent: 4629707 (1986-12-01), Wolfe
patent: 4716133 (1987-12-01), Horiuchi et al.
patent: 4904624 (1990-02-01), Yeckley

Affiliated with

Also associated with

Rating

High surface area silicon nitride and use thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High surface area silicon nitride and use thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High surface area silicon nitride and use thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-326724