Abstract: A method of forming Mn+1AXn, where M is an early transition metal (such as Ti) or mixtures thereof, A is a group III or IV element (such as Si) or mixtures thereof and X is C, N or mixtures thereof, the method comprising the steps of providing a precursor of formula Mn+1AXn and reacting the Mn+1Xn with A to provide Mn+1AXn. The Mn+1Xn may be ordered and/or twinned (eg by mechanical alloying, thermal treatment etc. prior to reacting with A, ordered and/or twinned during its formation from M and X. A may be present during the formation of Mn+1Xn from M and X or during the ordering and/or twinning of disordered Mn+1Xn. The Mn+1AXn produced is substantially free from MX and or other residual phases.

Abstract: This is an ankle and/or wrist exercising device capable of simultaneous rotational movement about any single axis and/or any combination of two or three axes with the resistance to movement provided by the opposite limb, ergometer or a second person and with the motion being synchronized for each foot or hand relative to the opposite foot or hand.The device is comprised of two U-shaped yokes rotatably mounted upon a base, adapted to rotate about a Y axis and rotatably coupled to one another. There are two U-shaped brackets rotatably coupled to each of said U-shaped yokes, adapted to rotate about a Z axis perpendicular to said Y axis and rotatably coupled to one another. Two U-shaped gimbals are integrally coupled to each of said U-shaped yokes. Two stirrups are rotatably mounted upon each of said U-shaped gimbals and adapted to rotate about an X axis. The X axis is perpendicular to the Y axis and the Z axis. Each of said stirrups is coupled to the other by a beam adapted to transmit X axis motion.