Surface modification of α-Al2O3 with dicarboxylic acids for the preparation of UV-curable ceramic suspensions

Zhang, Shuai; Sha, Na; Zhao, Zhe

doi:10.1016/j.jeurceramsoc.2016.12.013

Cited by 111 publications

(73 citation statements)

References 24 publications

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“…Previous articles showed that the ceramic stereolithography suspensions must contain at least 40 vol.% ceramic powder in order to fulfill the requirement for subsequent densification process . In the meantime, the cure depth must be large enough to ensure a good bonding force between the adjacent layers of the green part .…”

Section: Resultsmentioning

confidence: 99%

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

Zhong

Zhang

et al. 2019

Int J Applied Ceramic Tech

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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

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Section: Resultsmentioning

confidence: 99%

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

Zhong

Zhang

et al. 2019

Int J Applied Ceramic Tech

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“…[4][5][6] Stereolithography (SLA) and its derivatives (i.e., digital light processing (DLP)) are a class of technologies that display much higher printing resolution compared with other 3D-printing methods. 7 Scholars have assessed the SLA 3D printing of various ceramic slurries, [8][9][10][11] such as ZrO 2 , 8,12 Al 2 O 3 (ref. 11 and 13) and hydroxyapatite.…”

Section: Introductionmentioning

confidence: 99%

Additive manufacturing of SiBCN/Si₃N₄w composites from preceramic polymers by digital light processing

Zhang

Zhao

et al. 2020

RSC Adv.

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“…For this reason, an increased sintering temperature is required for the debound samples to form dense ceramic parts. The exorbitant high sintering temperature (1550 ~ 1750 °C) of stereolithography-based 3D printed Al2O3 ceramics [15,16,[22][23][24][25][26][27] is expected to cause the abnormal grain growth and heterogeneous microstructure of Al2O3 ceramics. For instance, as presented in Refs.…”

Section: Introductionmentioning

confidence: 99%

Microstructure refinement - homogenization and flexural strength improvement of Al2O3 ceramics fabricated by DLP-stereolithography integrated with chemical precipitation coating process

Nie

Sheng

et al. 2020

Preprint

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In this study, the chemical precipitation coating (CP) process was creatively integrated with DLP-stereolithography based 3D printing for refining and homogenizing the microstructure of 3D printed Al2O3 ceramic. Based on this novel approach, Al2O3 powder was coated with a homogeneous layer of amorphous Y2O3; with the coated Al2O3 powder found to make the microstructure of 3D printed Al2O3 ceramic more uniform and refined, as compared with the conventional mechanical mixing (MM) of Al2O3 and Y2O3 powders. The grain size of Al2O3 in Sample CP is 64.44% and 51.43% lower than those in the monolithic Al2O3 ceramic (AL) and Sample MM, respectively. Sample CP has the highest flexural strength of 455.37±32.17 MPa, which is 14.85% and 25.45% higher than those of Samples MM and AL, respectively; also Sample CP has the highest Weibull modulus of 16.88 among the three kinds of samples. Moreover, the fine grained Sample CP has a close thermal conductivity to the coarse grained Sample MM because of the changes in morphology of Y3Al5O12 phase from semi-connected (Sample MM) to isolated (Sample CP). Finally, specially designed fin-type Al2O3 ceramic heat sinks were successfully fabricated via the novel integrated process, which has been proven to be an effective method for fabricating complex-shaped Al2O3 ceramic components with enhanced flexural strength and reliability.

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Surface modification of α-Al2O3 with dicarboxylic acids for the preparation of UV-curable ceramic suspensions

Cited by 111 publications

References 24 publications

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

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

Additive manufacturing of SiBCN/Si₃N₄w composites from preceramic polymers by digital light processing

Microstructure refinement - homogenization and flexural strength improvement of Al2O3 ceramics fabricated by DLP-stereolithography integrated with chemical precipitation coating process

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Surface modification of α-Al2O3 with dicarboxylic acids for the preparation of UV-curable ceramic suspensions

Cited by 111 publications

References 24 publications

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

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

Additive manufacturing of SiBCN/Si3N4w composites from preceramic polymers by digital light processing

Microstructure refinement - homogenization and flexural strength improvement of Al2O3 ceramics fabricated by DLP-stereolithography integrated with chemical precipitation coating process

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Additive manufacturing of SiBCN/Si₃N₄w composites from preceramic polymers by digital light processing