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LIFEI LIU1, FEIHU ZHANG1,* , MINHUI LIU1, XIAOHUI LIANG1
Scratch tests of SiC ceramics are carried out using a diamond fly cutting machine tool. The formation, expansion and intersection of cracks are investigated as well as the influence of grit wear on scratch status. According to the experimental results, ductile to brittle transition happens with the increase of cutting depth. Micro cracks appear along the edges and on the bottom of plastic groove in plowing stage. The normal force, tangential force, the width of scratch traces, and the length of surface cracks sharply increase as the scratch distance is longer than 1600mm. The cracks intersection is found promote to material broken..
SiC ceramics, Single grit, Inclined scratch, Wear, Multi scratch, Cracks.
LIFEI LIU, FEIHU ZHANG, MINHUI LIU, XIAOHUI LIANG, S ingle diamond grit scratch tests of Silicon Carbide ceramics, Optoelectronics and Advanced Materials - Rapid Communications, 9, 3-4, March-April 2015, pp.439-446 (2015).
Submitted at: Feb. 1, 2015
Accepted at: March 19, 2015
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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