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High‐Quality Translucent Alumina Ceramic Through Digital Light Processing Stereolithography Method
Author(s) -
Sun Ying,
Li Ming,
Jiang Yanlin,
Xing Bohang,
Shen Minhao,
Cao Chuanru,
Wang Cao,
Zhao Zhe
Publication year - 2021
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.202001475
Subject(s) - stereolithography , materials science , digital light processing , ceramic , fabrication , curing (chemistry) , composite material , 3d printing , polymerization , sintering , alumina ceramic , uv curing , residual stress , polymer , optics , medicine , physics , alternative medicine , pathology , projector
Herein, translucent alumina ceramics with fine complex geometric shapes are successfully fabricated by a digital light processing (DLP) process followed by vacuum sintering. The interlayer bonding condition is the key for preparing high‐quality translucent alumina for this layer‐by‐layer additive manufacturing (AM) method. The curing characteristics of alumina suspensions are carefully investigated by curing depth and polymerization conversion behavior. It is clear that the residual stress resulted from the polymerization process is more critical than the curing depth for selecting optimum curing time. Finally, high‐quality translucent alumina ceramic and complex structures are realized using this novel AM technique. It reveals that DLP 3D printing method can be a promising technology for the fabrication of transparent ceramics.