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Influence of core‐shell structure on the cure depth in photopolymerizable alumina dispersion
Author(s) -
WieclawMidor Anna,
Falkowski Pawel,
Szafran Mikolaj
Publication year - 2019
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.13250
Subject(s) - materials science , stereolithography , composite material , dispersion (optics) , ceramic , fabrication , layer (electronics) , core (optical fiber) , shell (structure) , nucleation , transmission electron microscopy , aluminium , nanotechnology , optics , medicine , chemistry , physics , alternative medicine , organic chemistry , pathology
Abstract The heterogeneous nucleation‐and‐growth processing was used to obtain core‐shell particles based on alpha alumina core with silica layer. Presence of silica shell was confirmed by transmission electron microscopy (TEM) and zeta potential measurement. The coverage of aluminum oxide surface by SiO 2 improved a cure of the depth of photopolymerizable ceramic dispersion around 20%. The proposed surface modification enables the production of thicker cured layer which is favorable for additive manufacturing methods such as stereolithography. Thus, the number of layers that have to be printed to form the 3D object might significantly decrease, thereby reducing time and costs of fabrication.