FLASH sintering of porcelain stoneware: Effect of composition modifications

Ribeiro, Camila Oliveira; Figueiredo, Luís Gustavo Girardi; Serrazina, Ricardo; Almeida, José C.; Salgado, Joana; Santos, Regina María dos; Jorge, Hélio; Serrão, Álvaro; Marcos, Pedro; Costa, Maria Elisabete V.; Vilarinho, Paula M.; Senos, A.M.R.

doi:10.1016/j.jeurceramsoc.2023.03.008

Cited by 3 publications

(2 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, the consolidation of porcelain-based ceramics containing glassy phases were also explored. 25,26 As discussed above, flash sintering of ZrO 2 ceramics and glasses has been frequently reported. However, the flash sintering of ZrO 2 ceramic nanocomposites containing substantial amorphous phases have never been reported.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of amorphous phase and yttrium on flash sintering and microstructures of ZrO₂–SiO₂ ceramic nanocomposites

Fu,

Yu,

Wen

et al. 2024

J Am Ceram Soc.

View full text Add to dashboard Cite

Flash sintering has been used to consolidate a wide range of ceramics and ceramic composites. However, flash sintering of ceramic nanocomposite with a substantial amorphous phase is rarely studied. Meanwhile, the effects of yttrium addition on the flash sintering behaviors and microstructures of ZrO2‐based ceramic nanocomposite remain unknown. Herein, ZrO2‐SiO2 crystalline‐amorphous ceramic nanocomposites (CACNs) with different contents of amorphous phase and two types of yttrium dopants were sintered by flash sintering. Results showed that the content of amorphous phase (SiO2) had significant effects on the flash sintering behavior. The CACN with 65 mol% SiO2 was nonflash sinterable due to the high electric resistivity of SiO2, whereas, the CACN with 45 mol% SiO2 can be flash sintered to high densification within 35 seconds. The flash‐sintered CACNs consisted of ZrO2 nanocrystallites distributed in an amorphous SiO2 matrix. Flash sintering enhanced the tetragonal‐to‐monoclinic phase transformation of ZrO2. In addition, influences of yttrium dopant on CACNs were also investigated. Yttrium dopants can rapidly dissolve in ZrO2 lattices and show a tetragonal phase stabilization effect during flash sintering. Firework‐like ZrO2 microcrystallites formed by dendritic growth were observed close to the cathode region, which was attributed to athermal electric field effects and the formation and aggregation of oxygen vacancies at the cathode region. The results would provide guidance for fabricating CACNs via flash sintering.

show abstract

Section: Introductionmentioning

confidence: 99%

“…They found that electric field induced a remarkable overheating of the positive electrode, which caused compositional changes and a microstructural asymmetry between anode and cathode. In addition, the consolidation of porcelain‐based ceramics containing glassy phases were also explored 25,26 …”

Section: Introductionmentioning

confidence: 99%

Effects of amorphous phase and yttrium on flash sintering and microstructures of ZrO₂–SiO₂ ceramic nanocomposites

Fu,

Yu,

Wen

et al. 2024

J Am Ceram Soc.

View full text Add to dashboard Cite

show abstract

Flash sintering of ZnO ceramics with combined power supplies at room temperature

Niu,

Han,

Zhou

et al. 2024

Ceramics International

View full text Add to dashboard Cite

Flash sintering of lead zirconate titanate ceramics under high voltage at room temperature

Niu,

Han,

Wang

et al. 2024

Journal of the European Ceramic Society

View full text Add to dashboard Cite

FLASH sintering of porcelain stoneware: Effect of composition modifications

Cited by 3 publications

References 33 publications

Effects of amorphous phase and yttrium on flash sintering and microstructures of ZrO₂–SiO₂ ceramic nanocomposites

Effects of amorphous phase and yttrium on flash sintering and microstructures of ZrO₂–SiO₂ ceramic nanocomposites

Flash sintering of ZnO ceramics with combined power supplies at room temperature

Flash sintering of lead zirconate titanate ceramics under high voltage at room temperature

Contact Info

Product

Resources

About

FLASH sintering of porcelain stoneware: Effect of composition modifications

Cited by 3 publications

References 33 publications

Effects of amorphous phase and yttrium on flash sintering and microstructures of ZrO2–SiO2 ceramic nanocomposites

Effects of amorphous phase and yttrium on flash sintering and microstructures of ZrO2–SiO2 ceramic nanocomposites

Flash sintering of ZnO ceramics with combined power supplies at room temperature

Flash sintering of lead zirconate titanate ceramics under high voltage at room temperature

Contact Info

Product

Resources

About

Effects of amorphous phase and yttrium on flash sintering and microstructures of ZrO₂–SiO₂ ceramic nanocomposites

Effects of amorphous phase and yttrium on flash sintering and microstructures of ZrO₂–SiO₂ ceramic nanocomposites