Synthesis of refractory materials

Details Synthesis of refractory materials Synthesis of refractory materials

1983-08-16

1984-07-10

Poer, James

Compositions: ceramic

Ceramic compositions

Refractory

501 97, 501 98, 423406, C04B 3558

Patent

active

044593635

ABSTRACT:
Refractory metal nitrides are synthesized during a self-propagating combustion process utilizing a solid source of nitrogren. For this purpose, a metal azide is employed, preferably NaN.sub.3. The azide is combusted with Mg or Ca, and a metal oxide is selected from Groups III-A, IV-A, III-B, IV-B, or a rare earth metal oxide. The mixture of azide, Ca or Mg and metal oxide is heated to the mixture's ignition temperature. At that temperature the mixture is ignited and undergoes self-sustaining combustion until the starter materials are exhausted, producing the metal nitride.

REFERENCES:
Newsline Weekly Bull., Lawrence Livermore Nat. Lab., vol. 7, No. 25, Jun. 30, 1982.
Borovinskaya et al., Poroshkovaya Metallurgica, No. 11 (191) pp. 42-45, 1978.
Merzhanov et al., Doklady Akademii Nauk USSP, vol. 204, No. 2, pp. 366-369, May 1972.
Holt, Industrial Research and Development, pp. 88-91, Apr., 1983.
Fedoroff et al., Encyc. of Explosives and Related Items pp. _A601-A619 (Picatinny Arsenal, Dover, NJ U.S.A., 1960.

Affiliated with

Also associated with

Rating

Synthesis of refractory materials does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1576739