Kinetic stability and rheological properties of photosensitive zirconia suspensions for DLP printing

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F23%3APU147789" target="_blank" >RIV/00216305:26310/23:PU147789 - isvavai.cz</a>

Result on the web

<a href="https://authors.elsevier.com/sd/article/S0272-8842(23)00525-4" target="_blank" >https://authors.elsevier.com/sd/article/S0272-8842(23)00525-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ceramint.2023.02.223" target="_blank" >10.1016/j.ceramint.2023.02.223</a>

Result language

angličtina

Original language name

Kinetic stability and rheological properties of photosensitive zirconia suspensions for DLP printing

Original language description

Digital light processing (DLP) is a rapidly developing technology accessing the opportunity to print complex ceramics objects. The main prerequisite for successful printing is the preparation of kinetically stable suspension with low viscosity and homogenous distribution of perfectly dispersed particles. All three mentioned assumptions could be fulfilled by a selection of a suitable dispersant and starting zirconia powder. In this paper, a commercial agent Disperbyk-103 was used to create a highly stable suspension with 30 vol.% of zirconia powder with appropriate viscosity (0.93 Pa·s at a shear rate of 10 s-1). The optimal concentration of the agent was set not only by rheological measurements but also with the help of measurement of the kinetic stability over time using an analytical centrifuge. Stability measurement was evaluated as an appropriate supplementary analysis to the conventional viscosimetric analysis. Furthermore, the predictive viscosity models were tested either as a tool how to estimate the maximum solid volume fraction for the ceramic suspensions as well as for the prediction of suspension dynamic viscosity according to the used solid content in the prepared suspension. Finally, the suspension with the most suitable physicochemical properties was printed, sintered, and subsequently characterized using the analysis of mechanical properties by the Vickers hardness (1315 HV), relative density (98.2%) and shrinkage. The presented work points to the excellent possibility of using stability analysis as a complementary ceramic suspension analysis.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20504 - Ceramics

Project

<a href="/en/project/LTT18013" target="_blank" >LTT18013: Development of functional ceramic and glass ceramic materials in collaboration with the Centre of Excellence FunGlass</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Ceramics International

ISSN

0272-8842

e-ISSN

1873-3956

Volume of the periodical

49

Issue of the periodical within the volume

11PB

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

18508-18515

UT code for WoS article

000988547900001

EID of the result in the Scopus database

2-s2.0-85149762572