Fig.1 showed the interface microstructure of sample S1, S2 and S3, respectively,and the defectoutlines of the interface microstructure were shown in Figs. 2a and 2b.. In Fig.2a (the sample S1) and Fig.2b (the sample S2), the defect rate was 22% and 23.7%,respectively with corresponding interface thickness of 5.0μm and ...
