Impact fracture characteristics on fabricating process of Nb/MoSi2 laminate composite (I)

Nb/MoSi^sub 2^ laminate composites have been successfully fabricated by hot pressing in a graphite mould. Lamination of Nb foil and MoSi^sub 2^ layer showed a sufficient improvement in the absorbed impact energy compared to that of monolithic MoSi^sub 2^ material. The impact value of Nb/MoSi^sub 2^ laminate composites obviously is reduced when sintered at temperatures higher than 1523K, even if the composite density contributing to impact load increased along with fabricating temperatures. Impact value of laminate composites was also drastically decreased with the growth of reaction layer after the heat treatment. However, it was effective to increase the pressure at the same sintering temperature for the improvement of the impact value.[PUBLICATION ABSTRACT]