Influence of particle shape in the additive manufacturing process for ceramics

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Additive manufacturing (AM) of ceramics through a vat photopolymerization (VP) process is a promising technique due to the high intrinsic resolution and the evanescence of stresses introduced during the layerwise additive manufacturing process. Compared to the regular vat photopolymerization process, the addition of ceramic powder increases physical complexity. Hence, large scale adoption and optimization of AM for ceramics requires a thorough understanding of the underlying physics. This work focuses on the light scattering introduced through a complex interplay between optical properties of different constituents and its effect on the photopolymerization. The effect of the shape of the ceramic particle is investigated for isolated and multiple particle cases using a parametric analysis with regular convex polygons. Although the analysis of two-dimensional isolated particle shapes indicates a preference for one shape over the other, this difference vanishes in a multiple-scattering situation. A three-dimensional analysis furthermore shows that a two-dimensional approximation of the three-dimensional scattering problem is relevant and can be used to further the process understanding of ceramic VP.

LanguageEnglish
Pages2360-2376
JournalComputers and Mathematics with Applications
Volume78
Issue number7
DOIs
StatePublished - 1 Oct 2019

Fingerprint

3D printers
Photopolymerization
Manufacturing
Regular polygon
Three-dimensional
Parametric Analysis
Multiple Scattering
Convex polygon
Multiple scattering
Dimensional Analysis
Light Scattering
Scattering Problems
Powder
Light scattering
Optical Properties
Vanish
Physics
Optical properties
Scattering
Powders

Bibliographical note

Part of special issue:
Simulation for Additive Manufacturing

Keywords

  • Additive manufacturing
  • Ceramics
  • Electromagnetics
  • Light modeling
  • Micro-scale modeling
  • Vat photopolymerization

Cite this

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title = "Influence of particle shape in the additive manufacturing process for ceramics",
abstract = "Additive manufacturing (AM) of ceramics through a vat photopolymerization (VP) process is a promising technique due to the high intrinsic resolution and the evanescence of stresses introduced during the layerwise additive manufacturing process. Compared to the regular vat photopolymerization process, the addition of ceramic powder increases physical complexity. Hence, large scale adoption and optimization of AM for ceramics requires a thorough understanding of the underlying physics. This work focuses on the light scattering introduced through a complex interplay between optical properties of different constituents and its effect on the photopolymerization. The effect of the shape of the ceramic particle is investigated for isolated and multiple particle cases using a parametric analysis with regular convex polygons. Although the analysis of two-dimensional isolated particle shapes indicates a preference for one shape over the other, this difference vanishes in a multiple-scattering situation. A three-dimensional analysis furthermore shows that a two-dimensional approximation of the three-dimensional scattering problem is relevant and can be used to further the process understanding of ceramic VP.",
keywords = "Additive manufacturing, Ceramics, Electromagnetics, Light modeling, Micro-scale modeling, Vat photopolymerization",
author = "S. Westbeek and {van Dommelen}, J.A.W. and J.J.C. Remmers and M.G.D. Geers",
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AU - Westbeek,S.

AU - van Dommelen,J.A.W.

AU - Remmers,J.J.C.

AU - Geers,M.G.D.

N1 - Part of special issue: Simulation for Additive Manufacturing

PY - 2019/10/1

Y1 - 2019/10/1

N2 - Additive manufacturing (AM) of ceramics through a vat photopolymerization (VP) process is a promising technique due to the high intrinsic resolution and the evanescence of stresses introduced during the layerwise additive manufacturing process. Compared to the regular vat photopolymerization process, the addition of ceramic powder increases physical complexity. Hence, large scale adoption and optimization of AM for ceramics requires a thorough understanding of the underlying physics. This work focuses on the light scattering introduced through a complex interplay between optical properties of different constituents and its effect on the photopolymerization. The effect of the shape of the ceramic particle is investigated for isolated and multiple particle cases using a parametric analysis with regular convex polygons. Although the analysis of two-dimensional isolated particle shapes indicates a preference for one shape over the other, this difference vanishes in a multiple-scattering situation. A three-dimensional analysis furthermore shows that a two-dimensional approximation of the three-dimensional scattering problem is relevant and can be used to further the process understanding of ceramic VP.

AB - Additive manufacturing (AM) of ceramics through a vat photopolymerization (VP) process is a promising technique due to the high intrinsic resolution and the evanescence of stresses introduced during the layerwise additive manufacturing process. Compared to the regular vat photopolymerization process, the addition of ceramic powder increases physical complexity. Hence, large scale adoption and optimization of AM for ceramics requires a thorough understanding of the underlying physics. This work focuses on the light scattering introduced through a complex interplay between optical properties of different constituents and its effect on the photopolymerization. The effect of the shape of the ceramic particle is investigated for isolated and multiple particle cases using a parametric analysis with regular convex polygons. Although the analysis of two-dimensional isolated particle shapes indicates a preference for one shape over the other, this difference vanishes in a multiple-scattering situation. A three-dimensional analysis furthermore shows that a two-dimensional approximation of the three-dimensional scattering problem is relevant and can be used to further the process understanding of ceramic VP.

KW - Additive manufacturing

KW - Ceramics

KW - Electromagnetics

KW - Light modeling

KW - Micro-scale modeling

KW - Vat photopolymerization

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