comminuted rapidly solidified aluminum alloy ribbon as the in feed for a continuous friction actuated extruder gumming and flow problems are eliminated the extruded product is devoid of surface blistering the extrusion is converted into a rivet that has improved ambient and elevated temperature mechanical properties application_number US 65011391 A description the rapid solidified ribbon is the product of a melt spinning process selected from the group consisting of jet casting or planar flow casting in such processes which are conventional the melt spun ribbon is produced by injecting and solidifying a liquid metal stream onto a rapidly moving substrate the ribbon is thereby cooled by conductive cooling rates in the range of 10 5 to 10 7 u00b0 c sec such processes typically produce homogeneous materials and permit control of chemical composition by providing for incorporation of strengthening dispersoids into the alloy at sizes and volume fractions unattainable by conventional ingot metallurgy in general the cooling rates achievable by melt spinning greatly reduce the size of the intermetallic dispersoids formed during solidification furthermore engineered alloys containing substantially higher quantities of transition elements are able to be produced by rapid solidification with mechanical properties superior to those previously produced by conventional solidification processes the rapidly solidified ribbon is subsequently pulverized to a particulate or powder which is used as the conform in feed the particulate can range in particle size from approximately one quarter of an inch 0 635 cm in diameter to about one thousandth of an inch 0 0025 cm in diameter powder produced by this method is flowable which property enhances the ability of the material to be successfully conformed as.