A new combustion synthesis technique has been applied to fabricate NiAlFe-T
iB2 composite and the microstructure has been investigated. A new lamellar
phase Fe(Ni,AI,Ti) was formed with 25% Fe addition, which has a FCC crystal
with lattice parameter a=1.068 nm. High resolution images indicate that Ti
B2 and Fe(Ni,Al,Ti) phases are well bonded with the matrix. After compressi
on test, dislocations have been found at the TiB2 particles as well as in t
he matrix and along the interface. (C) 1999 Elsevier Science S.A. All right
s reserved.