Calcium/aluminum alloys and process for their preparation

Details Calcium/aluminum alloys and process for their preparation Calcium/aluminum alloys and process for their preparation

1982-03-09

1984-05-22

Rosenberg, Peter D.

Alloys or metallic compositions

Processes

420415, C22C 100

Patent

active

044501366

ABSTRACT:
A substantially homogeneous calcium/aluminum alloy having a calcium/aluminum atomic ratio of from about 60/40 to 80/20 and with useful and unexpected properties of brittleness, passivity to atmospheric moisture and low volatility is prepared by a process which comprises adding aluminum under an inert atmosphere to molten calcium at a temperature of from about 550.degree. to 1100.degree. C. and at a rate to prevent substantial solids formation in the melt during the addition. The molten alloy is converted to particulate solid either by melt atomization or by casting, crushing and grinding. Lead/calcium/aluminum and tin/calcium/aluminum alloys are prepared by adding the calcium/aluminum alloy to the molten lead or tin, while calcium/aluminum/lithium alloy is prepared by adding lithium to the molten calcium/aluminum alloy.

REFERENCES:
patent: 2257988 (1941-10-01), Suchy et al.
patent: 2829092 (1958-04-01), Andrieux et al.
patent: 2955936 (1960-10-01), Deyrup
patent: 3272619 (1966-09-01), Sweeney
patent: 3895937 (1975-07-01), Gjosteen
patent: 3920473 (1975-11-01), Sims
patent: 3939009 (1976-02-01), Barnes et al.
patent: 4125690 (1978-11-01), Bagshaw et al.
patent: 4233070 (1980-11-01), McWhinnie et al.
patent: 4248630 (1981-02-01), Balmuth
patent: 4286984 (1981-09-01), Luyckx

Affiliated with

Also associated with

Rating

Calcium/aluminum alloys and process for their preparation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Calcium/aluminum alloys and process for their preparation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calcium/aluminum alloys and process for their preparation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1478008