Interfaces in Composites Reinforced With Rapidly Solidified Metallic Ribbons

Abstract

Des rubans discontinus de métal rapidement solidifiés d'un alliage de Fe^Ni^-B^ç furent incoporés dans une matrice de polypropylène. La qualité de l'adhésion à l'interface fut examinée par deux moyens, soit en retirant des rubans partiellement noyés dans la matrice, soiten étudiant les surfaces des rubans au microscope électronique à balayage. Des rubans discontinus d'un alliage de Ni 75 AI 2 "B.Zr^ furent coulés dans uns matrice d'aluminium. Le microscope électronique à balayage ainsi que l'analise au KEVEX furent employés pour étudier la zone de l'interface formée autour du ruban.

Influence of hot compaction pressure on the interfacial properties in the amorphous metallic ribbon/thermoplastic matrix composite system

“…percent B (Fe,oNi,oB,,) were used as reinforcements. The rapid solidification technique used for their processing is described in detail clsewhere (7)(8)(9). The average width and thickness of the ribbons were found to be 1.4 mm and 0.035 mm, respectively.…”

“…Surprisingly, the number of papers devoted to the problems of polymer matrices, and in particular thermoplastic matrix composites, reinforced with metallic glass ribbons is rather scarce. A brief review of pertinent papers has recently been presented ( 7 ) along with preliminary results on the investigation of the interfacial properties during fabrication stages of the metallic glass ribbon/polymer matrix composite (8).…”

Metal Matrix Composites Reinforced With Intermetallic Ribbons

“…Since the developmental stage of the fabrication of reinforcing ribbons with the compositions shown in Table 2 has not been completed yet we decided to fabricate ribbons with a slightly simpler composition corresponding to Ni 7SAl 23ZrB (at.%) (3)(4)30). The ribbons were rapidly solidified on a beryllium copper wheel using the free jet single-roller melt spinning technique in ultra-pure argon at a surface speed of 28 m/s (3)(4)30).…”

“…The ribbons were rapidly solidified on a beryllium copper wheel using the free jet single-roller melt spinning technique in ultra-pure argon at a surface speed of 28 m/s (3)(4)30). In melt spinning, the charge was induction melted in either quartz or yttria-coated quartz crucible and pressurized helium was used to eject the aluminide melt at 34.45 kPa out of a 1.1 mm diameter orifice.…”

“…Obviously, the toughness of these MMCs should be improved by the use of high strength metallic reinforcements with much higher failure strain than ceramic reinforcement. It has recently been proposed that the most suitable high strain reinforcement can be provided by the ductilized Ni 3AI intermetallic compound, produced in the form of relatively long ribbons by melt spinning technique (3)(4)(5)(6).…”