Highly compactable zirconium sponge and its manufacture

Details Highly compactable zirconium sponge and its manufacture Highly compactable zirconium sponge and its manufacture

1989-08-09

1990-05-15

Sheehan, John P.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or purifying free metal powder or producing or...

241 23, B22F 900

Patent

active

049254863

ABSTRACT:
The process for producing crushed zirconium sponge having particle configurations which enhance its compactability, wherein conventionally produced, as-reduced, non-sintered zirconium sponge pieces are loaded into a vacuum furnace, the furnace is heated under partial vacuum at a temperature of up to about 400.degree. C. for a sufficient period to essentially demoisturize and degas the sponge, the temperature is raised to at least about 700.degree. C. and the vacuum terminated, H.sub.2 is fed in a carefully controlled manner into the furnace over a period of several hours in a total amount comprising from about 0.05 to about 0.8% by weight of the sponge, the furnace is cooled, the cooled sponge is pacified, the sponge is removed from the furnace and crushed, the crushed sponge is loaded into a vacuum furnace, the furnace is heated at from about 950.degree. C. to about 1100.degree. C. under partial vacuum for a sufficient period to dehydride the sponge, and the dehydrided sponge, now of enhanced compactability, is cooled and recovered.

REFERENCES:
patent: 2829962 (1955-03-01), Supiro
patent: 4655825 (1987-04-01), Hard et al.

Affiliated with

Also associated with

Rating

Highly compactable zirconium sponge and its manufacture does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Highly compactable zirconium sponge and its manufacture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Highly compactable zirconium sponge and its manufacture will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-619398