Improvement of the Contact Strength of Al₂O₃/SiC by a Combination of Shot Peening and Crack-Healing

Table 2

Surface roughness of each test specimen.

Specimens	Maximum height roughness 𝑅𝑧 (𝜇m)
Smooth	0.445
SP	0.498
SP + CH (950°C for 100 h)	0.471
SP + CH (950°C for 100 h); Nonpolishing	0.530
CH (1300°C for 1 h)	0.554