Effects of the content of in-situ grown mullite on the microstructure and mechanical properties of 3Y-TZP ceramics fabricated by gel-casting

Huang, Yi; Liu, Pengfei; Li, Zhuan

doi:10.1016/j.ceramint.2018.08.298

Cited by 7 publications

(15 citation statements)

References 36 publications

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“…Despite ZrO 2 ceramic has high hardness, strength as well as good biocompatibility, the inherent brittleness limits its application. Mullite/3Y-TZP, as one of the ZrO 2 composite ceramics, not only improves the exural strength and fracture toughness of pure ZrO 2 ceramic without introducing toxic composition, but also retains high hardness, which has been con rmed in our previous research [24,25].…”

Section: Introductionsupporting

confidence: 63%

“…6 shows the microstructure of mullite/3Y-TZP, and there are two obviously different phases in the sample. The preliminary experimental results proved that the black phase was mullite generated by the reaction of Al 2 O 3 and SiO 2 during the sintering process, while the gray area was ZrO 2 [24,25]. In the ternary eutectic system of Y 2 O 3 -SiO 2 -Al 2 O 3 formed by Y 2 O 3 with SiO 2 and Al 2 O 3 , local liquid phase appeared in the sample at high temperature, then the contact reaction and nucleation occurred between SiO 2 and Al 2 O 3 .…”

Section: Cytotoxicitymentioning

confidence: 93%

“…14(d)), that is, abrasive wear had occurred on the surface of zirconia ceramic, which was closely related to the brittleness of zirconia ceramic. Because mullite/3Y-TZP used in this experiment had better fracture toughness, the nailing effect of mullite and alumina particles reduced the possibility of zirconia particles falling off [24]. Fewer particles such as hard zirconia would reduce the damage to the friction couple during the friction process.…”

Section: Wear Appearancesmentioning

confidence: 96%

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Tribological changes of tooth enamel-mullite/3Y-TZP couple in artificial saliva

Huang

Liu

et al. 2021

Preprint

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In-situ mullite toughened 3Y-TZP composite ceramic (mullite/3Y-TZP) with excellent mechanical properties was fabricated by gel-casting. The cytotoxicity of mullite/3Y-TZP was determined by both extract and direct contact methods, and the results indicated that mullite/3Y-TZP had no acute cytotoxicity. Furthermore, the tribological properties of the tooth enamel sliding against mullite/3Y-TZP in artificial saliva were investigated by using the pin-on-plate friction method. The friction coefficient (μ) between the two friction samples was about 0.464 with a stable friction process, and both of them showed slight wear. Analysis of the wear surface and debris demonstrated that the tooth enamel mainly suffered from fatigue wear accompanied by mild adhesive wear, while mullite/3Y-TZP showed slight abrasive wear. This result indicated that mullite/3Y-TZP had good wear resistance and showed potential applications in dental material.

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Section: Introductionsupporting

confidence: 63%

Section: Cytotoxicitymentioning

confidence: 93%

Section: Wear Appearancesmentioning

confidence: 96%

See 1 more Smart Citation

Tribological changes of tooth enamel-mullite/3Y-TZP couple in artificial saliva

Huang

Liu

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Despite ZrO 2 ceramic has high hardness and strength as well as good biocompatibility, the inherent brittleness limits its application. Mullite/3Y-TZP, as one of the ZrO 2 composite ceramics, not only improves the exural strength and fracture toughness of pure ZrO 2 ceramic without introducing toxic composition, but also retains high hardness, which has been con rmed in our previous research [24,25].…”

Section: Introductionsupporting

confidence: 63%

“…6 shows the microstructure of mullite/3Y-TZP, from which it can be seen that there are two obviously different phases in the sample. The preliminary experimental results proved that the black phase was mullite generated by the reaction of Al 2 O 3 and SiO 2 in the sintering process and the gray area was ZrO 2 [24,25]. In the ternary eutectic system of Y 2 O 3 -SiO 2 -Al 2 O 3 formed by Y 2 O 3 with SiO 2 and Al 2 O 3 , local liquid phase appeared in the sample at high temperature, then the contact reaction and nucleation occurred between SiO 2 and Al 2 O 3 .…”

Section: Cytotoxicitymentioning

confidence: 93%

Tribological changes of tooth enamel-mullite/3Y-TZP couple in artificial saliva

Huang

Liu

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

In-situ mullite toughened 3Y-TZP composite ceramic (mullite/3Y-TZP) with excellent mechanical properties was fabricated by gel-casting. The cytotoxicity of mullite/3Y-TZP was determined by both extract and direct contact methods, and the results indicated that mullite/3Y-TZP had no acute cytotoxicity. Furthermore, the tribological properties of the tooth enamel sliding against mullite/3Y-TZP in artificial saliva were investigated by using the pin-on-disk friction method. The friction coefficient (µ) between the two friction samples was about 0.464 with a stable friction process, and both of them showed slight wear. Analysis of the wear surface and debris demonstrated that the tooth enamel mainly suffered from fatigue wear accompanied by mild adhesive wear, while mullite/3Y-TZP showed slight abrasive wear. This result indicated that mullite/3Y-TZP had good wear resistance and showed potential applications in dental material.

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