Sliding wear of ZrO2-Al2O3 composite ceramics

Abstract

He, Y.J.; Winnubst, A.J.A.; Burggraaf, A.J.; Verweij, H.; van der Varst, P.G.T.; de With, G. Published in:Journal of the European Ceramic Society DOI:10.1016/S0955-2219(96)00239-7Published: 01/01/1997 Document VersionPublisher's PDF, also known as Version of Record (includes final page, issue and volume numbers)Please check the document version of this publication:• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. The friction and wear behaviour of two Zr02-AlJO composite materials, ADZ (20 wt% AlzO, dispersed in yttria-doped ZrOz matrix) and ZTA (AI,O,-1.5 wt% ZrO,), were investigated. Sliding wear tests were carried out on these materials under dry conditions using a ball-on-plate configuration. The eflects of grain size and zirconia phase transformation on friction and wear behaviour were examined. Sinter forging was applied to determine the role of grain boundaries on the wear process. It was found that for ADZ composites the wear resistance increased with decreasing grain size. Only limited grain pullout occurs in these systems, which also explains the fact that in this case sinter forging has no positive eflect on wear resistance. For ZTA composites a compressive surface caused by zirconia phase transformation has a beneficial eflect on wear resistance. Here grain pull-out is the main wear mechanism which explains the positive eflect of sinter forging ZTA on wear resistance. 0 1997 Elsevier Science Limited.

Percolative mechanism of sliding wear in alumina/zirconia composites

“…This fact, may help the material resist crack propagation and hence reduce wear. 4,19 However, for a high normal loads ≥100 N (corresponding Hertzian contact pressure higher than 1.9 GPa), the increase of toughness in the composites with higher content of zirconia, is not enough to increase the resistance to wear. Therefore, the alumina matrix grain size is the main factor in characterizing the wear resistance of the composite materials at these loads, as has been determined previously for alumina materials.…”

Sliding Wear of Electrically Conductive ZrO2−WC Composites Against WC–Co Cemented Carbide

“…However, information on the sliding friction and wear behaviour of zirconia-based composites is relatively scarce [18]. In this paper, dry reciprocative sliding experiments have been performed on wire-EDM'ed ZrO 2 -WC ceramic composites with distinctive WC grain sizes, against a commercial WC-Co-based cemented carbide.…”

Tribological behaviour of glass-ceramics reinforced by Yttria Stabilized Zirconia

“…The strengthening mechanisms of zirconia reinforced glass-ceramic composites are based on stopping, deflection or bridging the crack propagation [41,49,[51][52][53][54][55]; either, on compressive residual stresses due to thermal mismatch between the glass-ceramic matrix and inorganic fillers. It has been mentioned that the optimization of the microstructure is an important factor for improvement on friction and wear behavior of dental glassceramic [47,56]. As stated by He et al [47], the amount of tetragonal zirconia transformed to the monoclinic crystal structure increased with increasing grain size resulting in a decrease in wear resistance.…”

“…It has been mentioned that the optimization of the microstructure is an important factor for improvement on friction and wear behavior of dental glassceramic [47,56]. As stated by He et al [47], the amount of tetragonal zirconia transformed to the monoclinic crystal structure increased with increasing grain size resulting in a decrease in wear resistance. The volume increment caused by this phase transformation weakens the grain boundaries which results in grain pullout and delamination [57,58].…”

“…Thus, the addition of a second high-strength biocompatible phase into the glass-ceramic matrix can optimize the properties of the resultant material [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46]. Glass improve mechanical properties, fracture toughness, wear resistance, optical properties and biocompatibility and thus to increase their lifespan [35][36][37][38][39][40][41][42][43][44][45][46][47][48].…”