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Highly Concentrated Hydroxyapatite Suspension for DLP Printing
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Ceramics. KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy. Shanghai Institute of Technology.ORCID iD: 0000-0003-3060-9987
2019 (English)In: IOP Conference Series: Materials Science and Engineering, Institute of Physics Publishing , 2019, no 1Conference paper, Published paper (Refereed)
Abstract [en]

Due to the lack of commercially available high-quality hydroxyapatite (HA) powder, it is still rarely reported by the literature concerning the development of UV resin for digital light processing 3D printing. The previous studies still had the problem of delamination and also poor sintering performance led by low solid-load slurry. Here low viscosity and high solid-load hydroxyapatite (HA) UV resin suspensions were developed for digital light processing 3D printing. In this study, the effect of the type of dispersant, the dose levels of dispersant and the solid load of HA powder on the rheology properties were thoroughly investigated to obtain a flowable highly-concentrated HA UV resin suspension. Finally, a 40vol% slurry with viscosity of 3.7Pa•s at a shear rate of 10 s-1 was successfully developed. After 3D printing and sintering, a dense ceramic with relative density of 95.85% can be obtained at a sintering temperature of 1300°C.

Place, publisher, year, edition, pages
Institute of Physics Publishing , 2019. no 1
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-272330DOI: 10.1088/1757-899X/678/1/012016Scopus ID: 2-s2.0-85078277819OAI: oai:DiVA.org:kth-272330DiVA, id: diva2:1430157
Conference
The 11th International Conference on High-Performance Ceramics 25–29 May 2019, Kunming, China
Note

QC 20200513

Available from: 2020-05-13 Created: 2020-05-13 Last updated: 2020-05-13Bibliographically approved

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Zhao, Zhe

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