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Direct ink writing of alumina threedimensional structures

Currently, there is a research study of addition TiO2 to alumina ceramic in the application of binder jet 3D printing but not yet in direct ink writing (DIW). Thus, our project tried to explore the possibility of adopting DIW method so that there will be more options to perform 3D printing of alumin...

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Main Author: Soon, Ming Siang
Format: Final Year Project / Dissertation / Thesis
Published: 2023
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utar.edu.my/5902/1/ME_1804583__MING_SIANG_SOON.pdf
http://eprints.utar.edu.my/5902/
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spelling my-utar-eprints.59022023-10-05T16:56:15Z Direct ink writing of alumina threedimensional structures Soon, Ming Siang TJ Mechanical engineering and machinery Currently, there is a research study of addition TiO2 to alumina ceramic in the application of binder jet 3D printing but not yet in direct ink writing (DIW). Thus, our project tried to explore the possibility of adopting DIW method so that there will be more options to perform 3D printing of alumina ceramic. Addition of 1 wt% of TiO2 was chosen as alumina ceramic doped with this amount of TiO2 sintered under a lower temperature was found to be the most beneficial. TiO2 can also be used as a sintering aids as it helps to lower down sintering temperature while resulting in high densification of the sintered printed structure. This project aims to investigate the effects of TiO2 addition on the rheological properties of the alumina ink and the sinterability of the sintered printed part. Firstly, alumina powder was doped with TiO2 powder through ball milling process. Next, cellulose acetate was dissolved in acetone and mixed with the powder mixture. The alumina slurry was loaded into syringes which loaded to a 3D printer to perform printing.The green part produced underwent thermal debinding and sintering processs and followed by the characterization tests. Another syringe loaded with alumina slurry was used to perform rheological tests. From the result, it was found that the addition of TiO2 barely affect the particle size distribution and rhelogical result. But, from the result, it was noted that the surface area per gram, relative density, Vickers hardness value as well as volume shrinkage increased due to the TiO2. Thus, TiO2 is such a good additive as it helps to lower down sintering temperature while improving the physical and mechanical properties of the sintered part and is proven workable in the application of the DIW technique. 2023 Final Year Project / Dissertation / Thesis NonPeerReviewed application/pdf http://eprints.utar.edu.my/5902/1/ME_1804583__MING_SIANG_SOON.pdf Soon, Ming Siang (2023) Direct ink writing of alumina threedimensional structures. Final Year Project, UTAR. http://eprints.utar.edu.my/5902/
institution Universiti Tunku Abdul Rahman
building UTAR Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tunku Abdul Rahman
content_source UTAR Institutional Repository
url_provider http://eprints.utar.edu.my
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Soon, Ming Siang
Direct ink writing of alumina threedimensional structures
description Currently, there is a research study of addition TiO2 to alumina ceramic in the application of binder jet 3D printing but not yet in direct ink writing (DIW). Thus, our project tried to explore the possibility of adopting DIW method so that there will be more options to perform 3D printing of alumina ceramic. Addition of 1 wt% of TiO2 was chosen as alumina ceramic doped with this amount of TiO2 sintered under a lower temperature was found to be the most beneficial. TiO2 can also be used as a sintering aids as it helps to lower down sintering temperature while resulting in high densification of the sintered printed structure. This project aims to investigate the effects of TiO2 addition on the rheological properties of the alumina ink and the sinterability of the sintered printed part. Firstly, alumina powder was doped with TiO2 powder through ball milling process. Next, cellulose acetate was dissolved in acetone and mixed with the powder mixture. The alumina slurry was loaded into syringes which loaded to a 3D printer to perform printing.The green part produced underwent thermal debinding and sintering processs and followed by the characterization tests. Another syringe loaded with alumina slurry was used to perform rheological tests. From the result, it was found that the addition of TiO2 barely affect the particle size distribution and rhelogical result. But, from the result, it was noted that the surface area per gram, relative density, Vickers hardness value as well as volume shrinkage increased due to the TiO2. Thus, TiO2 is such a good additive as it helps to lower down sintering temperature while improving the physical and mechanical properties of the sintered part and is proven workable in the application of the DIW technique.
format Final Year Project / Dissertation / Thesis
author Soon, Ming Siang
author_facet Soon, Ming Siang
author_sort Soon, Ming Siang
title Direct ink writing of alumina threedimensional structures
title_short Direct ink writing of alumina threedimensional structures
title_full Direct ink writing of alumina threedimensional structures
title_fullStr Direct ink writing of alumina threedimensional structures
title_full_unstemmed Direct ink writing of alumina threedimensional structures
title_sort direct ink writing of alumina threedimensional structures
publishDate 2023
url http://eprints.utar.edu.my/5902/1/ME_1804583__MING_SIANG_SOON.pdf
http://eprints.utar.edu.my/5902/
_version_ 1779151199283445760
score 13.211869

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