Blended powder solid-supersolidus liquid phase sintering

Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Making composite or hollow article

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C419S023000, C419S036000, C419S040000, C419S047000

Reexamination Certificate

active

07070734

ABSTRACT:
A green article comprising an A-B powder mixture and methods of manufacturing such green articles and corresponding sintered articles are disclosed. The A-B powder mixture consists of a minor volume fraction of a relatively fine powder A and a complementary major volume fraction of a relatively coarse prealloyed powder B wherein the A-B powder mean particle size ratio is at least about 1:5. Metal powder A consists of one or more elemental metals or alloys which has a melting or solidus temperature above the highest sintering temperature at which the A-B powder mixture may be sintered without slumping. Prealloyed metal powder B consists of one or more alloys which are amenable to supersolidus liquid phase sintering. Green articles made from the A-B powder have a wider sintering temperature window than do articles made from prealloyed metal powder B alone.

REFERENCES:
patent: 4130422 (1978-12-01), Wang et al.
patent: 4608317 (1986-08-01), Kobayashi et al.
patent: 5076869 (1991-12-01), Bourell et al.
patent: 5328657 (1994-07-01), Kamel et al.
patent: 5872322 (1999-02-01), Mocarski et al.
patent: 5950063 (1999-09-01), Hens et al.
patent: 6399018 (2002-06-01), German et al.
patent: 6630009 (2003-10-01), Moussa et al.
patent: S63(1988)-293102 (1988-11-01), None
patent: H05(1993)-009509 (1993-01-01), None
patent: 2000-199001 (2000-07-01), None
patent: 2000-336403 (2000-12-01), None
patent: 2001-131677 (2001-05-01), None
patent: 96 09132 (1996-03-01), None
patent: WO 96 09132 (1996-03-01), None
patent: 98 52709 (1998-11-01), None
patent: WO 98 52709 (1998-11-01), None
PCT International Search Report for PCT/US/032220; issued Jun. 16, 2003.
PCT International Prelimary Examination Report for PCT/US/032220; issued Oct. 29, 2003.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Blended powder solid-supersolidus liquid phase sintering does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Blended powder solid-supersolidus liquid phase sintering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blended powder solid-supersolidus liquid phase sintering will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3586181

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.