The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 1988
Filed:
Apr. 21, 1986
Applicant:
Inventors:
Howard H Liebermann, Succasunna, NJ (US);
Debasis Bose, Randolph, NJ (US);
Assignee:
Allied-Signal Inc., Morris Township, Morris County, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
420571 ; 420570 ; 428606 ;
Abstract
A lead based alloy is modified by adding thereto a surfactant consisting of about 0.01 to 0.5 weight percent tellurium, about 0.01 to 0.5 weight percent selenium, about 0.01 to 0.5 weight percent selenium plus about 0.1-0.5 weight percent antimony, and mixtures thereof. The alloy is rapidly solidified by forming a melt thereof containing the surfactant addition and quenching the melt on a moving chill surface at a quenching rate of at least about 10.sup.3 .degree. C./sec. Addition of the surfactant lowers melt surface tension and thereby promotes improved wetting.