| Autor: |
Jinyang Xu, Ji, Min, Li, Linfeng, Chen, Ming |
| Zdroj: |
Journal of Superhard Materials; Jan2022, Vol. 44 Issue 1, p62-69, 8p |
| Abstrakt: |
Polycrystalline diamond (PCD) is a superhard tool material capable of resisting harsh tool-work interactions when machining hard workpiece materials due to its superior thermo-mechanical properties. Zirconia ceramic represents one type of biomedical-grade restorative material being extensively utilized in clinical dental prosthodontics owing to its outstanding biocompatibility and excellent esthetical effects. The present paper aims to carry out a series of milling experiments against the zirconia ceramics when using the PCD tools. The main objective of this work lies in evaluating the wear behavior of PCD tools following the milling of zirconia ceramics. Two types of zirconia specimens, including the pre-sintered and fully-sintered 3Y-TZP ceramics, were examined. The tool performance was assessed in terms of the wear development, and the worn tool surface morphologies were characterized using both the digital microscope and the surface topography measuring instrument. Moreover, the underlying mechanisms governing the wear progression of PCD tools were revealed with respect to different sintered ceramic specimens. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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