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作者:

Li, Tao (Li, Tao.) | Zhang, Yuzhen (Zhang, Yuzhen.) | Duan, Wenyan (Duan, Wenyan.) | Jin, Baojie (Jin, Baojie.) | Chen, Zihuan (Chen, Zihuan.) | Li, Shan (Li, Shan.) | Liu, Bingshan (Liu, Bingshan.) | Wang, Gong (Wang, Gong.)

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摘要:

The printing accuracy in ceramic stereolithography is deteriorated by shrinkage due to photopolymerization of monomers and broadening owing to scattering of light. To improve the accuracy of printed alumina parts, a series of experiments involving the reduce of shrinkage and broadening were conducted. Firstly, the dependence of conversion of monomers, shrinkage of suspensions and warpage of parts on energy doses was quantitively investigated and correlated, with which the shrinkage was well controlled through optimization. Besides, the warpage problem was effectively resolved when adding 30 wt% PEG-200 in the suspensions to release the accumulated internal stress. Next, the broadening under different energy doses was observed and reduced by addition of absorbers, after which a self-defined parameter Cd/We was applied to suggest strategies in the selection of appropriate processing parameters and absorber content. On this basis, the holes with a diameter ranging from 50-200 mu m were successfully printed.

关键词:

Ceramic stereolithography Alumina parts Accuracy Scattering Photopolymerization

作者机构:

  • [ 1 ] [Li, Tao]Chinese Acad Sci, Technol & Engn Ctr Space Utilizat, Key Lab Space Mfg Technol SMT, Beijing 100094, Peoples R China
  • [ 2 ] [Zhang, Yuzhen]Chinese Acad Sci, Technol & Engn Ctr Space Utilizat, Key Lab Space Mfg Technol SMT, Beijing 100094, Peoples R China
  • [ 3 ] [Duan, Wenyan]Chinese Acad Sci, Technol & Engn Ctr Space Utilizat, Key Lab Space Mfg Technol SMT, Beijing 100094, Peoples R China
  • [ 4 ] [Li, Shan]Chinese Acad Sci, Technol & Engn Ctr Space Utilizat, Key Lab Space Mfg Technol SMT, Beijing 100094, Peoples R China
  • [ 5 ] [Liu, Bingshan]Chinese Acad Sci, Technol & Engn Ctr Space Utilizat, Key Lab Space Mfg Technol SMT, Beijing 100094, Peoples R China
  • [ 6 ] [Wang, Gong]Chinese Acad Sci, Technol & Engn Ctr Space Utilizat, Key Lab Space Mfg Technol SMT, Beijing 100094, Peoples R China
  • [ 7 ] [Li, Tao]Univ Chinese Acad Sci, Beijing 100049, Peoples R China
  • [ 8 ] [Zhang, Yuzhen]Univ Chinese Acad Sci, Beijing 100049, Peoples R China
  • [ 9 ] [Liu, Bingshan]Univ Chinese Acad Sci, Beijing 100049, Peoples R China
  • [ 10 ] [Wang, Gong]Univ Chinese Acad Sci, Beijing 100049, Peoples R China
  • [ 11 ] [Jin, Baojie]Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
  • [ 12 ] [Chen, Zihuan]Beijing Univ Technol, Inst Laser Engn, Fac Mat & Mfg, Beijing 100124, Peoples R China

通讯作者信息:

  • [Duan, Wenyan]Chinese Acad Sci, Key Lab Space Mfg Technol SMT, Beijing 100094, Peoples R China;;

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来源 :

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY

ISSN: 0955-2219

年份: 2024

期: 12

卷: 44

页码: 7149-7159

5 . 7 0 0

JCR@2022

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