Cure behavior of colorful ZrO2 suspensions during Digital light processing (DLP) based stereolithography process

In this study, the light absorption of the pure ZrO2 and three types of colorful ZrO2 mixtures were investigated. It was found that the absorbance of colored ZrO2 powder increases with the colorant content, and the yellow-colored powder has the strongest absorbance at the wavelength of 405 nm compar...

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Bibliographic Details
Published inJournal of the European Ceramic Society Vol. 39; no. 15; pp. 4921 - 4927
Main Authors Li, Yanhui, Wang, Minglang, Wu, Haidong, He, Fupo, Chen, Yong, Wu, Shanghua
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.12.2019
Subjects
Absorbance
Beer-Lambert model
Colored ZrO2
Cure behaviors
Stereolithography
Beer-Lambert model
Absorbance
Stereolithography
Colored ZrO2
Cure behaviors
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Summary:In this study, the light absorption of the pure ZrO2 and three types of colorful ZrO2 mixtures were investigated. It was found that the absorbance of colored ZrO2 powder increases with the colorant content, and the yellow-colored powder has the strongest absorbance at the wavelength of 405 nm compared with the other two types of colored ZrO2 powder. The cure behavior investigation on the ceramic suspensions of the above four types of ZrO2 powders during DLP process shows that as the colorant content increases, the cure depth and excess cure width both decrease due to the ceramic absorbance. The cure depth of colored suspensions is linear with logarithm of incident energy, consistent with Beer-Lambert model, while the further research into the cure width shows that the excess cure width increases nonlinearly with logarithm of incident energy, which is inconsistent with Quasi-Beer-Lambert model. Additionally, colorful ZrO2 accessories were successfully fabricated.
ISSN:0955-2219
1873-619X
DOI:10.1016/j.jeurceramsoc.2019.07.035