Micropillar compression inside zirconia degraded layer
Visualitza/Obre
10.1016/j.jeurceramsoc.2015.04.017
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/80379
Tipus de documentArticle
Data publicació2015-11-01
EditorElsevier
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
In the dental field, Yttria-doped Tetragonal Polycrystalline Zirconia (Y-TZP) plays an important role due to its high mechanical properties, good aesthetics and bio-inert behavior. Surface mechanical properties are crucial for Y-TZP especially when it comes to osseointegration or contact loading, since it may undergo a spontaneous aging phenomenon when exposed to humid environment, creating a thin degraded layer that affects surface integrity. In this work, polished samples of Y-TZP have been artificially aged, and micropillars with diameters in the range 3.3-0.3 mu m have been milled by FIB inside the degraded layer and in the reference non-aged surface. Reproducible stress strain curves were obtained by testing the micropillars in compression, demonstrating that this technique is suitable for assessing the degraded surface properties. Mechanical and failure behavior are significantly different for the degraded micropillars due to the presence of microcracks, while important differences are observed when reducing the micropillar diameter. (C) 2015 Elsevier Ltd. All tights reserved.
CitacióCamposilvan, E., Anglada, M. Micropillar compression inside zirconia degraded layer. "Journal of the european ceramic society", 01 Novembre 2015, vol. 35, núm. 14, p. 4051-4058.
ISSN0955-2219
Versió de l'editorhttp://www.sciencedirect.com/science/article/pii/S0955221915001806
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
JECS-D-15-00175R1_Accepted_Manuscript.pdf | Accepted Manuscript | 1,260Mb | Visualitza/Obre |