Abstract
Ni/Al_2O_3 nanocomposites have an excellent self-healing function because of the oxidation reaction of nickel particles in alumina matrix at high-temperatures. ZrO_2 particles were introduced into Ni/Al_2O_3 in order to improve their mechanical properties. In this work, self-healing of 5vol% Ni/(10vol% ZrO_2+Al_2O_3) was investigated as a function of temperature. Bending tests were carried out for understanding heat-treatment effects on crack-healing of the nanocomposites.
