Microstructure and mechanical properties of in-situ grown mullite toughened 3Y-TZP zirconia ceramics fabricated by gelcasting

Liu, Pengfei; Li, Zhuan; Luo, Hang; Jiang, Tianhui

doi:10.1016/j.ceramint.2017.09.151

Cited by 38 publications

(27 citation statements)

References 33 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: 64%

“…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: 94%

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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: 64%

Section: Cytotoxicitymentioning

confidence: 94%

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: 64%

“…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: 94%

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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“…Archimedes method was used to measure density and apparent porosity of the samples. Diameters of the samples before and after calcination were used to calculate the diameter shrinkage (D) by using the following equation (1) [29,30]:…”

Section: Characterizationmentioning

confidence: 99%

Effect of Waste Glass Powder on Phase, Microstructure and Mechanical Properties of Mullite Based Porous Ceramics with Coal-series Solid Waste as Raw Materials

Lian¹,

Liu²,

Wang³

et al. 2020

Preprint

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Mullite based porous ceramics were successfully prepared by using a solid-phase method with gangue, slime and sawdust as raw materials. The effects of the content of glass powder and calcining temperature on microstructure and mechanical properties of the samples were systematically studied. It is found that glass powder can prevent the formation of Kyanite and reduce the synthesis temperature of mullite. The samples with 4% glass powder have a large amount of mullite calcined at 1150°C for 3h. Meanwhile, alumina in the sample is completely converted into mullite at 1180°C for 3h. Mullite content reaches 64.2wt%. The minimum apparent porosity is 31.22%, while the maximum volume density and diameter shrinkage are 1.74g/cm 3 and 8.48%, respectively. The ratio of pores of <8μm to those of 8~20μm is varied from 7:2 to 2:7, due to the addition of the glass powder. With increasing content of mullite, the flexural properties of the samples are increased from 7.7MPa to 28.36MPa. Therefore, with solid wastes as the resource, the porous ceramics have a bright prospect.

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Microstructure and mechanical properties of in-situ grown mullite toughened 3Y-TZP zirconia ceramics fabricated by gelcasting

Cited by 38 publications

References 33 publications

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

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

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

Effect of Waste Glass Powder on Phase, Microstructure and Mechanical Properties of Mullite Based Porous Ceramics with Coal-series Solid Waste as Raw Materials

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