TY - JOUR
T1 - Interface reaction studies of B4C/B and SiC/B fiber-reinforced Ti3Al matrix composites
AU - Jeng, S. M.
AU - Kai, W.
AU - Shih, C. J.
AU - Yang, J. M.
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 1989/7/15
Y1 - 1989/7/15
N2 - The interfacial chemical reactions of the silicon-carbide-coated boron (SiC/B) and boron-carbide-coated boron (B4C/B) fibers with the Ti3Al + Nb matrix were investigated. The microstructure as well as the chemical composition throughout the reaction zone were identified. The reaction kinetics were quantified, and the effect of reaction zone thickness on the fracture behavior of the composites was assessed. It was found that an extensive reaction resulting in complex multilayer reaction products occurred owing to the rapid diffusion of constituent atoms in the fibers and the matrix. The reaction is diffusion controlled with activation energies of 47 and 40 kcal mol-1 for the (SiC/B)-(Ti3Al + Nb) and (B4C/B)-(Ti3Al + Nb) composites respectively. The results reported can be used as guidelines for the selection of processing parameters to avoid the excessive fiber-matrix reaction, determination of service life expectancy and development of ways to control these reactions. © 1989.
AB - The interfacial chemical reactions of the silicon-carbide-coated boron (SiC/B) and boron-carbide-coated boron (B4C/B) fibers with the Ti3Al + Nb matrix were investigated. The microstructure as well as the chemical composition throughout the reaction zone were identified. The reaction kinetics were quantified, and the effect of reaction zone thickness on the fracture behavior of the composites was assessed. It was found that an extensive reaction resulting in complex multilayer reaction products occurred owing to the rapid diffusion of constituent atoms in the fibers and the matrix. The reaction is diffusion controlled with activation energies of 47 and 40 kcal mol-1 for the (SiC/B)-(Ti3Al + Nb) and (B4C/B)-(Ti3Al + Nb) composites respectively. The results reported can be used as guidelines for the selection of processing parameters to avoid the excessive fiber-matrix reaction, determination of service life expectancy and development of ways to control these reactions. © 1989.
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U2 - 10.1016/0921-5093(89)90858-7
DO - 10.1016/0921-5093(89)90858-7
M3 - RGC 21 - Publication in refereed journal
SN - 0921-5093
VL - 114
SP - 189
EP - 196
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
IS - C
ER -