Stereolithographical fabrication of dense Si3N4 ceramics by slurry optimization and pressure sintering

Liu, Yao; Zhan, Lina; He, Yu; Zhang, Jun; Hu, Jianjun; Cheng, Lan; Wu, Qiong; Liu, Shaojun

doi:10.1016/j.ceramint.2019.09.186

Cited by 62 publications

(26 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, the interface between the layers can be observed clearly from the side view (Figure B). This is typical for the DLP‐based stereolithography due to its specific production technique route and can be found in other works . The comb structure at the margin of the cross section in Figure C may be attributed to a large separating force between the as‐cured layer and the film, which deserves further research.…”

Section: Resultssupporting

confidence: 63%

Fabrication of zirconia all‐ceramic crown via DLP‐based stereolithography

Zhong

Zhang

et al. 2019

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

Zirconia ceramics have shown a wide applicable prospect in dental prosthetics because it possesses excellent mechanical performance and biocompatibility. The rheological behavior and curing properties of zirconia stereolithography slurry were studied, as well as the microstructure of the green, pyrolyzed, and sintered body.Variquat CC-42 NS was proved to be effective for zirconia powder dispersing in photocurable resin (SP-RC700). The curing characteristic of slurry showed that the depth of penetration tended to increase with the solid loading. Finally, the zirconia all-ceramic crowns were fabricated via DLP-based stereolithography printer. Results showed that the particles were evenly distributed in the cured resin matrix without obvious agglomeration, and the interlayered structure disappeared after binder burnout. The sample with a major crystalline phase of tetragonal zirconia and a porosity of 10(1)% were obtained after sintering at 1550°C. K E Y W O R D Sceramic stereolithography, microstructure, rheological properties, zirconia all-ceramic crown

show abstract

Section: Resultssupporting

confidence: 63%

Fabrication of zirconia all‐ceramic crown via DLP‐based stereolithography

Zhong

Zhang

et al. 2019

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…124 The slurry method suffers from some drawbacks, i.e. high viscosities can lead to difficulties in printing, 125 sedimentation of particles can lead to structural inhomogeneity, 126 and light scattering from the particles reduces the print resolution and accuracy. 127 The use of inorganic-organic photoresins can address some of the issues associated with the slurry approach.…”

Section: Ceramicsmentioning

confidence: 99%

Three‐dimensional chemical reactors: in situ materials synthesis to advance vat photopolymerization

Yee

Greer

2021

Polymer International

View full text Add to dashboard Cite

Vat photopolymerization (VP) is one of the most remarkable additive manufacturing techniques today and has been used for a variety of applications, from materials research to product manufacturing. The main challenge with VP is the limited choice of compatible materials, which motivates significant interest in VP materials development. We provide a brief overview of the materials that are currently accessible via VP and highlight recent advances in the field. We also provide perspective on expanding the library of materials compatible with VP using in situ materials synthesis.

show abstract

“…According to Equations ( 1) and ( 2), the larger the refractive index difference between ceramic powder and resin, the lower the cure depth. Many researches contributed the difficulty of stereolithography Si 3 N 4 to its high refractive index [31,36,43]. However, there are also a few works considering the absorbance of Si 3 N 4 powder [35].…”

Section: Curing Ability Characterizationmentioning

confidence: 99%

“…They reported that as the oxidation degree of Si 3 N 4 powder increased, the light absorbance and refractive index both reduced. Liu et al [36] found that the maximum solid loading of the Si 3 N 4 slurry can be improved notably from 35 vol.% to 45 vol.% by the surface modification of submicron Si 3 N 4 powder with the silane coupling agent KH560. They discussed the effects of applied energy dose and solid loading on cure depth of Si 3 N 4 slurries in their paper, however, there are also many other factors which were not mentioned by them.…”

Section: Introductionmentioning

confidence: 99%

Rheology and Curability Characterization of Photosensitive Slurries for 3D Printing of Si3N4 Ceramics

Zhang

Duan

et al. 2020

Applied Sciences

View full text Add to dashboard Cite

Among a series of 3D printing techniques, stereolithography provides a new route to produce ceramic architectures with the advantages of high-precision and short cycle time. However, up to now the stereolithography of non-oxide ceramics still face complex and difficult problems. This work focused on the analysis of rheological and curing ability of Si3N4 photocurable slurries. The effects of monomer type, coarse silicon powder, solid loading and ambient temperature on the rheological behavior were intensively studied. The relationships between powder characteristic (involving refractive index, absorbance and the introduce of coarse silicon powder), monomer type and curing ability were discussed in detail. It is expected that this study may benefit the development of Si3N4 or other non-oxide ceramic slurries for stereolithography.

show abstract

Stereolithographical fabrication of dense Si3N4 ceramics by slurry optimization and pressure sintering

Cited by 62 publications

References 35 publications

Fabrication of zirconia all‐ceramic crown via DLP‐based stereolithography

Fabrication of zirconia all‐ceramic crown via DLP‐based stereolithography

Three‐dimensional chemical reactors: in situ materials synthesis to advance vat photopolymerization

Rheology and Curability Characterization of Photosensitive Slurries for 3D Printing of Si3N4 Ceramics

Contact Info

Product

Resources

About