Preparation of HEMA gel-casted SiC ceramics combined with LPS sintering

Qin, Zixuan; Xu, Wentao; Ling, Junrong; Mu, Tinghai; Zhou, Yucun

doi:10.1016/j.ceramint.2020.12.151

Cited by 3 publications

(1 citation statement)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Researchers are turning to other advanced ceramic forming methods, such as gel casting. As time passes, gel casting develops AM systems, low toxicity systems, natural polymer [1], etc., but these systems have problems. In recent years, gel casting of the Isobam system has attracted extensive attention from researchers for its low organic content, high green body strength, and room temperature gelation [2,3] .…”

Section: Introductionmentioning

confidence: 99%

Research on the gel casting process and flexural strength of high-stability alumina ceramics

Deng,

Liu

2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Gel casting is an advanced wet-forming method for ceramics. In this paper, Isoabm 104 is selected as the dispersant and gelation agent for gel casting. The optimization of gel casting slurry and the preparation of the green and sintered alumina bodies are investigated. TAC reduces the viscosity of the slurry significantly due to electrostatic interaction. Isopropanol alcohol and vacuum tank eliminates the slurry’s air bubbles, thus improving the density of green bodies. A staged drying process is necessary to produce smooth and defect-free green bodies. After optimization of the slurry formulation and gel casting process, alumina ceramics with a Weibull modulus of 11.1 are successfully prepared.

show abstract

Section: Introductionmentioning

confidence: 99%

Research on the gel casting process and flexural strength of high-stability alumina ceramics

Deng,

Liu

2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

Mechanical and dielectric properties of porous Si₃N₄ ceramics prepared by modified water‐based gel casting

Zhang,

Yao,

Xia

et al. 2024

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

Porous Si3N4 ceramics were prepared using the low‐toxicity monomer HEMA (2‐hydroxyethyl methacrylate) via a modified gel casting method. The rheological properties of Si3N4 slurries were investigated. Triethanolamine with high activity was used as a catalyst and modifier for gelation reactions, effectively improving the curing rate and suppressing the inherent surface oxygen inhibition in such process systems. With an increase in solid loading of the slurry, the drying shrinkage (12.3% to 5.4%) significantly decreased, while the green body density (44.0%–49.0%) and flexural strength (9.65–16.46 MPa) increased, demonstrating an excellent mechanical strength. After sintering at 1700°C, the porous Si3N4 ceramics prepared with 24–36 vol% solid loading slurry exhibited a flexural strength of 144.39–193.66 MPa and a porosity of 55.8% to 49.0%. The dielectric constant and loss tangent at 30 GHz ranged from 2.88 to 3.38 and 1.17–1.56 × 10−3, respectively. These ceramics show promising potential applications in high‐performance structural ceramics and high‐temperature wave‐transparent materials.

show abstract

Microstructure and Properties of Porous Si3n4 Wave-Transparent Ceramics Prepared by a Modified Water-Based Gel Casting Method

Zhang,

Yao,

Xia

et al. 2024

Preprint

View full text Add to dashboard Cite

Preparation of HEMA gel-casted SiC ceramics combined with LPS sintering

Cited by 3 publications

References 26 publications

Research on the gel casting process and flexural strength of high-stability alumina ceramics

Research on the gel casting process and flexural strength of high-stability alumina ceramics

Mechanical and dielectric properties of porous Si₃N₄ ceramics prepared by modified water‐based gel casting

Microstructure and Properties of Porous Si3n4 Wave-Transparent Ceramics Prepared by a Modified Water-Based Gel Casting Method

Contact Info

Product

Resources

About

Preparation of HEMA gel-casted SiC ceramics combined with LPS sintering

Cited by 3 publications

References 26 publications

Research on the gel casting process and flexural strength of high-stability alumina ceramics

Research on the gel casting process and flexural strength of high-stability alumina ceramics

Mechanical and dielectric properties of porous Si3N4 ceramics prepared by modified water‐based gel casting

Microstructure and Properties of Porous Si3n4 Wave-Transparent Ceramics Prepared by a Modified Water-Based Gel Casting Method

Contact Info

Product

Resources

About

Mechanical and dielectric properties of porous Si₃N₄ ceramics prepared by modified water‐based gel casting