Zirconia responses to edge chipping damage induced in conventional and ultrasonic vibration-assisted diamond machining
Files
(Published Version)
Date
2021
Authors
Juri, A.Z.
Zhang, Y.
Kotousov, A.
Yin, L.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Journal of Materials Research and Technology, 2021; 13:573-589
Statement of Responsibility
Afifah Z. Juri, Yanzhong Zhang, Andrei Kotousov, Ling Yin
Conference Name
Abstract
Machining-induced edge chipping damage represents a common challenge in ceramic applications. This paper reports on responses of zirconia materials with porous and dense microstructures to edge chipping damage induced in conventional and ultrasonic vibration-assisted diamond machining. The machining-induced damage was evaluated using optical and scanning electron microscopies. The results show that edge chipping damage produced in these processes was associated with brittle fracture and depends on the material microstructure and the vibration amplitude. Pre-sintered porous zirconia with a high brittleness index yielded significantly larger edge chipping damage than sintered dense zirconia with a low index in these processes. Ultrasonic machining at an optimal vibration amplitude minimized the scale of brittle fracture at the micro level, and thus significantly diminished edge chipping damage in zirconia materials with distinct microstructures. The investigation underpins the transition from conventional to ultrasonic vibration-assisted machining for manufacturing of ceramics to achieve better product quality.
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
© 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).