Abstract: A high performance die castable aluminum alloy is described, wherein the aluminum alloy is characterized as having a high yield strength and high conductivity compared to conventional aluminum alloys, and also a high flowability and low susceptibility to hot tearing when die cast. The aluminum alloy may contain 4-6 wt. % nickel, a yield strength of at least about 90 MPa, and an electrical conductivity of at least about 48% IACS.

Abstract: Provided herein are aluminum alloy compositions having high conductivity. Low conductivity parent materials are also described.

Abstract: A high performance die castable aluminum alloy is described, wherein the aluminum alloy is characterized as having a high yield strength and high conductivity, and also a high flowability and low susceptibility to hot tearing when die cast.

Abstract: A projectile device for use in a tossing game. The projectile has a body with a concave bottom surface and a convex top surface. The body can have any shape, but is preferably triangular, wherein three side edges define the convex top surface and the concave bottom surface. Regardless of the shape of the projectile's body, the body of the projectile has a geometrical center. However, the projectile is fabricated so that the body of the projectile has a center of gravity that does not correspond to the geometrical center of the body. As a result, if the projectile is tossed with a spinning motion, the projectile will not evenly rotate about its geometrical center. The combination of the shape of the projectile, the contours of the projectile and the off-center center of gravity for the projectile make the flight characteristics of the projectile difficult to anticipate. The unpredictability in flight characteristics is a desired novel feature in the tossing game for which the projectile is used.