Method of making oxynitrides

Details Method of making oxynitrides Method of making oxynitrides

C - Chemistry, Metallurgy

01

B

23/184

C01B 21/082 (2006.01)

Patent

CA 1249418

-15- ABSTRACT The invention is a method of making ultrapure silicon yttrium oxynitride by using the steps of (a) in an argon stream, heating hydrated yttrium nitrate to a substantially dehydrated point; (b) adding to such heated hydrated yttrium nitrate an amount of silicon diimide to form a suspension and continuing to heat the mixture to melting so as to react the water of hydration of said nitrate with said silicon diimide and thereby form stoichiometric amounts of silica and yttrium/nitrogen/ oxygen complex; and (c) heating said silica and nitrate in an inert atmosphere to an elevated temperature and for a period of time to chemically form ultrapure silicon yttrium oxynitride. The temperature of heating the hydrated yttrium nitride can be to a range of 340-360°C which is 85-92% of the dehydration point of yttrium nitrate. The temperature to which the mass of step (c) is heated can be in the range of 1450-l600°C and the time period can be in the range of 5-6 hours.

522493

Affiliated with

Also associated with

Rating

Method of making oxynitrides does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making oxynitrides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making oxynitrides will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1320517