Improvement in Contact Strength of Si₃N₄/SiC Composite by Crack Healing

Table 1

Name of specimen and machining conditions.

Name	Machining process
Smooth	—
Smooth + Healed	Smooth → heat treated
#200	Smooth → #200 grinding
#200 + Healed	Smooth → #200 grinding → heat treated
#400	Smooth → #400 grinding
#400 + Healed	Smooth → #400 grinding → heat treated
#400 + Rap	Smooth → #400 grinding → rapping
#400 + Rap + Healed	Smooth → #400 grinding → rapping → heat treated
#400 + Healed + Rap	Smooth → #400 grinding → heat treated → rapping

Heat treated at 1300°C, l h in air.