Systematic Compounding of Ceramic Pastes in Stereolithographic Additive Manufacturing

In this paper, stereolithographic additive manufacturing of ceramic dental crowns is discussed and reviewed. The accuracy of parts in ceramic processing were optimized through smart computer-aided design, manufacturing, and evaluation. Then, viscous acrylic resin, including alumina particles, were s...

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Autor principal:	Soshu Kirihara
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	additive manufacturing stereolithography ceramic component nanoparticle paste dental crown Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/3026f24fc8d74d78b09df63701ba0c69
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spelling	oai:doaj.org-article:3026f24fc8d74d78b09df63701ba0c692021-11-25T18:16:16ZSystematic Compounding of Ceramic Pastes in Stereolithographic Additive Manufacturing10.3390/ma142270901996-1944https://doaj.org/article/3026f24fc8d74d78b09df63701ba0c692021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/7090https://doaj.org/toc/1996-1944In this paper, stereolithographic additive manufacturing of ceramic dental crowns is discussed and reviewed. The accuracy of parts in ceramic processing were optimized through smart computer-aided design, manufacturing, and evaluation. Then, viscous acrylic resin, including alumina particles, were successfully compounded. The closed packing of alumina particles in acrylic pastes was virtually simulated using the distinct element method. Multimodal distributions of particle diameters were systematically optimized at an 80% volume fraction, and an ultraviolet laser beam was scanned sterically. Fine spots were continuously joined by photochemical polymerization. The optical intensity distributions from focal spots were spatially simulated using the ray tracing method. Consequently, the lithographic conditions of the curing depths and dimensional tolerances were experimentally measured and effectively improved, where solid objects were freely processed by layer stacking and interlayer bonding. The composite precursors were dewaxed and sintered along effective heat treatment patterns. The results show that linear shrinkages were reduced as the particle volume fractions were increased. Anisotropic deformations in the horizontal and vertical directions were recursively resolved along numerical feedback for graphical design. Accordingly, dense microstructures without microcracks or pores were obtained. The mechanical properties were measured as practical levels for dental applications.Soshu KiriharaMDPI AGarticleadditive manufacturingstereolithographyceramic componentnanoparticle pastedental crownTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 7090, p 7090 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	additive manufacturing stereolithography ceramic component nanoparticle paste dental crown Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	additive manufacturing stereolithography ceramic component nanoparticle paste dental crown Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Soshu Kirihara Systematic Compounding of Ceramic Pastes in Stereolithographic Additive Manufacturing
description	In this paper, stereolithographic additive manufacturing of ceramic dental crowns is discussed and reviewed. The accuracy of parts in ceramic processing were optimized through smart computer-aided design, manufacturing, and evaluation. Then, viscous acrylic resin, including alumina particles, were successfully compounded. The closed packing of alumina particles in acrylic pastes was virtually simulated using the distinct element method. Multimodal distributions of particle diameters were systematically optimized at an 80% volume fraction, and an ultraviolet laser beam was scanned sterically. Fine spots were continuously joined by photochemical polymerization. The optical intensity distributions from focal spots were spatially simulated using the ray tracing method. Consequently, the lithographic conditions of the curing depths and dimensional tolerances were experimentally measured and effectively improved, where solid objects were freely processed by layer stacking and interlayer bonding. The composite precursors were dewaxed and sintered along effective heat treatment patterns. The results show that linear shrinkages were reduced as the particle volume fractions were increased. Anisotropic deformations in the horizontal and vertical directions were recursively resolved along numerical feedback for graphical design. Accordingly, dense microstructures without microcracks or pores were obtained. The mechanical properties were measured as practical levels for dental applications.
format	article
author	Soshu Kirihara
author_facet	Soshu Kirihara
author_sort	Soshu Kirihara
title	Systematic Compounding of Ceramic Pastes in Stereolithographic Additive Manufacturing
title_short	Systematic Compounding of Ceramic Pastes in Stereolithographic Additive Manufacturing
title_full	Systematic Compounding of Ceramic Pastes in Stereolithographic Additive Manufacturing
title_fullStr	Systematic Compounding of Ceramic Pastes in Stereolithographic Additive Manufacturing
title_full_unstemmed	Systematic Compounding of Ceramic Pastes in Stereolithographic Additive Manufacturing
title_sort	systematic compounding of ceramic pastes in stereolithographic additive manufacturing
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3026f24fc8d74d78b09df63701ba0c69
work_keys_str_mv	AT soshukirihara systematiccompoundingofceramicpastesinstereolithographicadditivemanufacturing
_version_	1718411371633180672

Systematic Compounding of Ceramic Pastes in Stereolithographic Additive Manufacturing

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