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Reinforced 3D Composite Structures of γ-, α-Al(2)O(3) with Carbon Nanotubes and Reduced GO Ribbons Printed from Boehmite Gels
The ability of boehmite to form printable inks has sparked interest in the manufacturing of 3D alumina (Al(2)O(3)) and composite structures by enabling direct ink writing methods while avoiding the use of printing additives. These materials may exhibit high porosity due to the printing and sintering...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8122593/ https://www.ncbi.nlm.nih.gov/pubmed/33921950 http://dx.doi.org/10.3390/ma14092111 |
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author | Ramírez, Cristina Belmonte, Manuel Miranzo, Pilar Osendi, Maria Isabel |
author_facet | Ramírez, Cristina Belmonte, Manuel Miranzo, Pilar Osendi, Maria Isabel |
author_sort | Ramírez, Cristina |
collection | PubMed |
description | The ability of boehmite to form printable inks has sparked interest in the manufacturing of 3D alumina (Al(2)O(3)) and composite structures by enabling direct ink writing methods while avoiding the use of printing additives. These materials may exhibit high porosity due to the printing and sintering procedures, depending on the intended application. The 3D-printed porous composite structures of γ-Al(2)O(3) and α-Al(2)O(3) containing 2 wt.% of carbon nanotubes or reduced graphene oxide ribbons were fabricated from boehmite gels, followed by different heat treatments. The reinforcing effect of these carbon nanostructures was evidenced by compression tests carried out on the different alumina structures. A maximum relative increase of 50% in compressive strength was achieved for the γ-Al(2)O(3) composite structure reinforced with reduced graphene oxide ribbons, which was also accompanied by an increase in the specific surface area. |
format | Online Article Text |
id | pubmed-8122593 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-81225932021-05-16 Reinforced 3D Composite Structures of γ-, α-Al(2)O(3) with Carbon Nanotubes and Reduced GO Ribbons Printed from Boehmite Gels Ramírez, Cristina Belmonte, Manuel Miranzo, Pilar Osendi, Maria Isabel Materials (Basel) Article The ability of boehmite to form printable inks has sparked interest in the manufacturing of 3D alumina (Al(2)O(3)) and composite structures by enabling direct ink writing methods while avoiding the use of printing additives. These materials may exhibit high porosity due to the printing and sintering procedures, depending on the intended application. The 3D-printed porous composite structures of γ-Al(2)O(3) and α-Al(2)O(3) containing 2 wt.% of carbon nanotubes or reduced graphene oxide ribbons were fabricated from boehmite gels, followed by different heat treatments. The reinforcing effect of these carbon nanostructures was evidenced by compression tests carried out on the different alumina structures. A maximum relative increase of 50% in compressive strength was achieved for the γ-Al(2)O(3) composite structure reinforced with reduced graphene oxide ribbons, which was also accompanied by an increase in the specific surface area. MDPI 2021-04-22 /pmc/articles/PMC8122593/ /pubmed/33921950 http://dx.doi.org/10.3390/ma14092111 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Ramírez, Cristina Belmonte, Manuel Miranzo, Pilar Osendi, Maria Isabel Reinforced 3D Composite Structures of γ-, α-Al(2)O(3) with Carbon Nanotubes and Reduced GO Ribbons Printed from Boehmite Gels |
title | Reinforced 3D Composite Structures of γ-, α-Al(2)O(3) with Carbon Nanotubes and Reduced GO Ribbons Printed from Boehmite Gels |
title_full | Reinforced 3D Composite Structures of γ-, α-Al(2)O(3) with Carbon Nanotubes and Reduced GO Ribbons Printed from Boehmite Gels |
title_fullStr | Reinforced 3D Composite Structures of γ-, α-Al(2)O(3) with Carbon Nanotubes and Reduced GO Ribbons Printed from Boehmite Gels |
title_full_unstemmed | Reinforced 3D Composite Structures of γ-, α-Al(2)O(3) with Carbon Nanotubes and Reduced GO Ribbons Printed from Boehmite Gels |
title_short | Reinforced 3D Composite Structures of γ-, α-Al(2)O(3) with Carbon Nanotubes and Reduced GO Ribbons Printed from Boehmite Gels |
title_sort | reinforced 3d composite structures of γ-, α-al(2)o(3) with carbon nanotubes and reduced go ribbons printed from boehmite gels |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8122593/ https://www.ncbi.nlm.nih.gov/pubmed/33921950 http://dx.doi.org/10.3390/ma14092111 |
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