Effect of TiO<sub>2</sub> content on the microstructure and mechanical and wear properties of yttria-stabilized zirconia ceramics prepared by pressureless sintering

Luo, Pan; Zhang, Jin; You, Zongying; Ran, Xuelin; Liu, Yuhong; Li, Songxia; Li, Shuai

doi:10.1088/2053-1591/ab6b60

Cited by 10 publications

(3 citation statements)

References 48 publications

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“…The TiZrO 4 phase is formed at 1700 • C, as per the TiO 2 -ZrO 2 state diagram. However, earlier research indicated that the TiZrO 4 phase remains stable above 1100 • C, resulting in the suggestion that TiO 2 contributes toward stabilizing this phase [39]. A deviation in TiO 2 peaks between different interlayers was observed.…”

Section: The Phase and Chemical Composition Analysis Of The Multi-cer...mentioning

confidence: 91%

Development of TiO2/ZrO2 Multi-Material Obtained from Ceramic Pastes for Material Extrusion

Repnin,

Sotov,

Popovich

et al. 2023

Micromachines

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The application of additive manufacturing method such as material extrusion (MEX) allows the successful fabrication of ceramic products, including multi-ceramic products. Promising materials in this research area are TiO2 and ZrO2 ceramics, which can be used in electrical and electronic engineering. The aim of this work is to investigate the possibility of fabricating TiO2/ZrO2 multi-materials from ceramic pastes that can be used in the MEX. In this work, defects, chemical and phase composition, and microhardness were analyzed in multi-ceramic samples after sintering. Multi-ceramic TiO2/ZrO2 samples after the sintering process without interlayer could not be fabricated due to a too large difference in shrinkage between TiO2 and ZrO2. The samples with one and three interlayers also have defects, but they are less significant and can be fabricated. The average hardness for the TiO2 zone was 636.7 HV and for the ZrO2 zone was 1101 HV. In the TiO2 zone, only TiO2 phase in rutile is observed, while in the interlayer zones, in addition to rutile, ZrO2 and ZrTiO4 are also present, as is a small amount of Y2O3. In the zone ZrO2, only the ZrO2 phase is observed. The chemical analysis revealed that the interlayers comprise sintered ZrO2 granules enveloped by TiO2, ZrO2, and ZrTiO4.

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Section: The Phase and Chemical Composition Analysis Of The Multi-cer...mentioning

confidence: 91%

Development of TiO2/ZrO2 Multi-Material Obtained from Ceramic Pastes for Material Extrusion

Repnin,

Sotov,

Popovich

et al. 2023

Micromachines

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“…After forty years of discovering the stress-induced transformation of metastable tetragonal zirconia by Garvie et al [12], Chevalier et al [13] highlighted that Ce-doped zirconia with alumina and strontium aluminate additions could display a significant amount of transformation-induced plasticity without damage, which is a promising mechanism to allow the use of additive manufacturing processing. Recently, Luo et al [14] synthesized a Y-TZP-TiO 2 composite containing 0-10 mol% TiO 2 by a powder mixing process. The increase in TiO 2 content increased the bending strength and hardness to a certain extent.…”

Section: Introductionmentioning

confidence: 99%

Room temperature plasticity of zirconia-yttria-titania ceramics: Experimental indications and structural modelling

Ussui

Lazar

Lima

et al. 2022

PAC

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Yttria-stabilized tetragonal zirconia (Y-TZP) ceramics have excellent mechanical properties. However, such materials cannot undergo plastic deformation at room temperature due to their high hardness and brittleness values, hindering machinability. To overcome these limitations, we propose a zirconia-yttria-titania ceramics, based on zirconia containing 3mol% yttria and up to 15mol% titania. The zirconia-yttria-titania powders were synthesized by co-precipitation method, uniaxially pressed and sintered at 1400?C/5 h. Sample characterizations were carried out by X-ray diffraction, scanning electron microscopy and mechanical properties through Vickers hardness and toughness measurements. Compared to the Y-TZP ceramics, the yttria stabilised tetragonal zirconia ceramics co-doped with 10mol%Ti showed noticeable increase of tetragonality parameter, higher toughness and lower hardness values, indicating plasticity at room temperature. Furthermore, the atomistic simulation by Density Functional Theory methodology suggests the occurrence of spatial arrangement of the atoms, explaining the proposed plasticity.

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“…Zirconia (ZrO 2 ) ceramics possess several beneficial physical and chemical properties, such as a high melting point of 2700°C, corrosion resistance, thermal conductivity, biocompatibility, and outstanding mechanical properties (eg high strength, hardness, and wear resistance) 1‐5 . Therefore, such materials are widely used in scientific, engineering and biological applications 6 .…”

Section: Introductionmentioning

confidence: 99%

Effects of added aluminum chromium slag on the structure and mechanical properties of colored zirconia ceramics

Luo

Zhang

Ran

et al. 2020

Int J Applied Ceramic Tech

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Colored zirconia ceramic samples were prepared via pressureless sintering with yttria-stabilized zirconia as a raw material and aluminum chromium slag (ACS) as an additive. Then, the effects of added ACS (0-15.0 wt%) on the microstructure, phase composition, and mechanical properties of the ceramic were investigated. The addi-How to cite this article: Luo P, Zhang J, Lin T, Ran X, Liu Y. Effects of added aluminum chromium slag on the structure and mechanical properties of colored zirconia ceramics.

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Effect of TiO₂ content on the microstructure and mechanical and wear properties of yttria-stabilized zirconia ceramics prepared by pressureless sintering

Cited by 10 publications

References 48 publications

Development of TiO2/ZrO2 Multi-Material Obtained from Ceramic Pastes for Material Extrusion

Development of TiO2/ZrO2 Multi-Material Obtained from Ceramic Pastes for Material Extrusion

Room temperature plasticity of zirconia-yttria-titania ceramics: Experimental indications and structural modelling

Effects of added aluminum chromium slag on the structure and mechanical properties of colored zirconia ceramics

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Effect of TiO2 content on the microstructure and mechanical and wear properties of yttria-stabilized zirconia ceramics prepared by pressureless sintering

Cited by 10 publications

References 48 publications

Development of TiO2/ZrO2 Multi-Material Obtained from Ceramic Pastes for Material Extrusion

Development of TiO2/ZrO2 Multi-Material Obtained from Ceramic Pastes for Material Extrusion

Room temperature plasticity of zirconia-yttria-titania ceramics: Experimental indications and structural modelling

Effects of added aluminum chromium slag on the structure and mechanical properties of colored zirconia ceramics

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Effect of TiO₂ content on the microstructure and mechanical and wear properties of yttria-stabilized zirconia ceramics prepared by pressureless sintering