Abstract: A composition to immobilize nuclear containing waste comprising at least one radioactive element or alloy of uranium, graphite, magnesium, and aluminum, and a method of using the same to immobilize the nuclear containing waste into a solid wasteform. The composition comprises at least one mineral phase forming element or compound for reacting with the at least one radioactive element or alloy. The composition further comprises at least one glass-forming element or compound to form a glass phase that will incorporate waste radioisotopes and impurities that do not react with the mineral phase forming element or compound.

Abstract: A composition to immobilize nuclear containing waste containing at least one radioactive element or alloy of uranium, graphite, magnesium, and aluminum is disclosed. The composition comprises at least one mineral phase forming element or compound for reacting with the at least one radioactive element or alloy. The composition further comprises at least one glass-forming element or compound to form a glass phase that will incorporate waste radioisotopes and impurities that do not react with the mineral phase forming element or compound. A method of using the disclosed composition to immobilize the nuclear containing waste into a solid wasteform is also disclosed.

Abstract: A racket for striking a ball or other projectile employed in playing games, such as tennis, which includes a head, an elongated handle, a hand grip mounted on the outer end of the handle having the capabiity of limited angular displacement between predetermined positions relative to the head about an axis extending longitudinally of the handle and a positive lock provided between the hand grip and handle which requires a dual relative motion to adjust the handle and hand grip in angular displacement in relation to each other. The angular displacement is permitted by an arcuate slot provided in the hand grip and a radial pin in the handle with the slot including longitudinally extending end portions receiving the pin for locking the pin in one of the end portions of the slot for securing the hand grip in predetermined angular displacement in relation to the head of the racket.