Tribological property enhancement of 3Y-TZP ceramic by the combined effect of CaF2 and MgO phases

Mazumder, Subhrojyoti; Barad, Bharat Bidhan; Show, Bijay Kumar; Mandal, Nilrudra

doi:10.1016/j.ceramint.2019.04.044

Cited by 27 publications

(3 citation statements)

References 17 publications

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“…They reported that the coefficient of friction (COF) reduces to 0.35 with a low wear rate (<10 −6 m 3 /N m) due to accumulation of soft copper oxide layer which causes shifting of the wear mechanism from brittle to ductile and increases wear resistance. The effect of different lubricating additives like TiC, CNT, CaF 2 etc to improve tribological attributes of alumina and alumina‐zirconia composite up to a certain level of addition and range of temperature by reinforcement in the matrix was also reported by several researchers 15‐18 . Counter‐surface plays an essential role on COF Kerkwijk et al 10 have reported that COF changes from 0.65 to 0.43 when Al 2 O 3 ball is replaced by Y‐TZP ball as a counter surface on 5 wt.% CuO added alumina sintered.…”

Section: Introductionmentioning

confidence: 81%

Effect of nano CuO addition on the tribo‐mechanical behavior of alumina ceramics in non‐conformal contact

Haldar¹,

Bhattacharya

Modak

2020

Int J Applied Ceramic Tech

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The well-known alumina ceramics have extensive structural application due to its outstanding physico-mechanical properties like hardness, wear resistance, good thermal conductivity, and thermal and chemical stability even at high temperature. 1 Its typical application includes in various engineering fields such as laser tubes, cutting tools, wear pads, high temperature electrical insulators, electronic substrates, automobiles, especially in unlubricated engines, aerospace, and even in biomaterials. 2-7 However, the fracture toughness of alumina ceramics is low, as a result, the material becomes brittle and thus its application reduces. Numerous research has been carried out to improve tribological behavior in conformal contact by incorporation of oxides like CuO, Y 2 O 3, ZrO 2, MgO, TiO 2 , Nb 2 O 3 8-12 and nonoxides like SiC, TiN, TiB 2 ,CNT 13 etc as a secondary phase in alumina matrix. Valefi et al 14 investigated the effect of CuO addition into yttria stabilized tetragonal zirconia polycrystalline (Y-TZP) ceramics sliding against alumina ball in conformal contact. They reported that the coefficient of friction (COF) reduces to 0.35 with a low wear rate (<10 −6 m 3 /N m) due to accumulation of soft copper oxide layer which causes shifting of the wear mechanism from brittle to ductile and increases wear resistance. The effect of different lubricating additives like TiC, CNT, CaF 2 etc to improve tribological attributes of alumina and alumina-zirconia composite up to a certain level of addition and range of temperature by reinforcement in the matrix was also reported by several researchers. 15-18 Countersurface plays an essential role on COF Kerkwijk et al 10 have reported that COF changes from 0.65 to 0.43 when Al 2 O 3 ball is replaced by Y-TZP ball as a counter surface on 5 wt.% CuO added alumina sintered. The tribo-mechanical properties of CuO/3Y-TZP composite system sliding upon Al 2 O 3

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Section: Introductionmentioning

confidence: 81%

Effect of nano CuO addition on the tribo‐mechanical behavior of alumina ceramics in non‐conformal contact

Haldar¹,

Bhattacharya

Modak

2020

Int J Applied Ceramic Tech

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“…To solve this severe issue, adding lubricating additive into ceramics has become a major route to reduce the friction coefficient, such as metals (19), oxides (20)(21)(22), carbon nanotubes (CNTs) (23)(24)(25)(26)(27)(28), or graphene (26,(29)(30)(31)(32)(33)(34)(35)(36)(37)(38)(39). These lubricating additives could form lubricating film on the surface of the ceramic and alleviate the microstress in friction, so the cracks and microfracture could be inhibited.…”

Section: Ultralow Friction Coefficient Of the 2d Graphene Array/ceram...mentioning

confidence: 99%

Embedding two-dimensional graphene array in ceramic matrix

et al. 2020

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Dispersing two-dimensional (2D) graphene sheets in 3D material matrix becomes a promising route to access the exceptional mechanical and electrical properties of individual graphene sheets in bulk quantities for macroscopic applications. However, this is highly restricted by the uncontrolled distribution and orientation of the graphene sheets in 3D structures as well as the weak graphene-matrix bonding and poor load transfer. Here, we propose a previously unreported avenue to embed ordered 2D graphene array into ceramics matrix, where the catastrophic fracture failure mode of brittle ceramics was transformed into stable crack propagation behavior with 250 to 500% improvement in the mechanical toughness. An unprecedentedly low dry sliding friction coefficient of 0.06 in bulk ceramics was obtained mainly due to the inhibition of the microcrack propagation by the ordered 2D graphene array. These unique and low-cost 2D graphene array/ceramic composites may find applications in severe environments with superior structural and functional properties.

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“…Therefore, reducing wear of the bearing surface is the key issue for improving the lifespan and service performance of the implants. At present, researches on methods of friction and wear improvement mainly focus on new implant materials development and modification, surface coating and microstructure preparation [24][25][26][27][28]. In addition, it is worth noting that some studies have shown that to improve surface quality (i.e., improving surface smoothness and reducing surface roughness) is also an effective way to reduce ceramic material wear.…”

Section: Introductionmentioning

confidence: 99%

Rapid fabrication of ultra-smooth Y-TZP bioceramic surfaces by dual-axis wheel polishing: process development and tribological characterization

Shang

Luo

et al. 2020

Journal of Manufacturing Processes

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The existing artificial joint implants using bioceramic materials face problems of difficulty in manufacturing and premature failure due to wear. This paper investigated a rapid preparing process of ultra-smooth surfaces of yttria-stabilized tetragonal zirconia polycrystal bioceramics based on the dual-axis wheel polishing (DAWP) system. Friction and wear tests were conducted to prove that the prepared ultra-smooth surface can effectively reduce wear. The effects of process parameters on polishing performances were investigated. The XRD and SEM analysis and micro-hardness testing were used to characterize the prepared surface in material behaviors.Tribological tests were carried out on a ball-on-plate reciprocating tribometer to comparatively study the tribological behavior and wear mechanism of the prepared ultra-smooth surfaces and the conventional surface at sub-microscale. The used finishing technology can steadily achieve fast preparation of ultra-smooth bioceramic surfaces, and with a high material removal rate (the highest value was 1.14 mg/min).Besides, in contrast to the conventional surface (Ra 129 nm), the prepared ultra-smooth surface (Ra 0.38 nm) achieved a much smaller friction coefficient, and much less wear volume, indicating that the wear resistance of the ultra-smooth surface was significantly improved.

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Tribological property enhancement of 3Y-TZP ceramic by the combined effect of CaF2 and MgO phases

Cited by 27 publications

References 17 publications

Effect of nano CuO addition on the tribo‐mechanical behavior of alumina ceramics in non‐conformal contact

Effect of nano CuO addition on the tribo‐mechanical behavior of alumina ceramics in non‐conformal contact

Embedding two-dimensional graphene array in ceramic matrix

Rapid fabrication of ultra-smooth Y-TZP bioceramic surfaces by dual-axis wheel polishing: process development and tribological characterization

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