Masked stereolithography of wollastonite-diopside glass-ceramics from novel silicone-based liquid feedstock
Silicate bioceramics, including systems based on the simultaneous presence of wollastonite (CaSiO3) and diopside (CaMgSi2O6), are of great interest in bone tissue engineering applications, especially in form of variously shaped three-dimensional scaffolds, as determined by application of several add...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Open Ceramics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666539523001463 |
| _version_ | 1797390438839091200 |
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| author | Hamada Elsayed Franco Matías Stabile Gianpaolo Savio Enrico Bernardo |
| author_facet | Hamada Elsayed Franco Matías Stabile Gianpaolo Savio Enrico Bernardo |
| author_sort | Hamada Elsayed |
| collection | DOAJ |
| description | Silicate bioceramics, including systems based on the simultaneous presence of wollastonite (CaSiO3) and diopside (CaMgSi2O6), are of great interest in bone tissue engineering applications, especially in form of variously shaped three-dimensional scaffolds, as determined by application of several additive manufacturing technologies. In this framework, silicone resins, properly modified with CaO- and MgO-based fillers and blended with photocurable acrylates, are attractive both as precursors and as feedstock for additive manufacturing technologies, including stereolithography. The use of powder fillers, however, may lead to issues with homogeneity or with printing resolution (owing to light scattering). The present paper aims at presenting the first results from a new concept of incorporation of CaO and MgO, relying on salts dispersed in emulsion within a photocurable silicone/acrylate blend. Direct firing at 1100 °C of printed scaffolds successfully produced wollastonite-diopside glass-ceramic scaffolds, with a very fine crystal distribution. The strength-to-density was tuned by operating either on the topology of scaffolds or on the firing atmosphere (passing from air to N2). |
| first_indexed | 2024-03-08T23:10:46Z |
| format | Article |
| id | doaj.art-bfc4f6f0ea054f4dbb7a1177f6f560e8 |
| institution | Directory Open Access Journal |
| issn | 2666-5395 |
| language | English |
| last_indexed | 2024-03-08T23:10:46Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Open Ceramics |
| spelling | doaj.art-bfc4f6f0ea054f4dbb7a1177f6f560e82023-12-15T07:26:18ZengElsevierOpen Ceramics2666-53952023-12-0116100474Masked stereolithography of wollastonite-diopside glass-ceramics from novel silicone-based liquid feedstockHamada Elsayed0Franco Matías Stabile1Gianpaolo Savio2Enrico Bernardo3Department of Industrial Engineering, Università degli Studi di Padova, Padova, Italy; Refractories, Ceramics and Building Materials Department, National Research Centre, Cairo, 12622, Egypt; Corresponding author. Department of Industrial Engineering, Università degli Studi di Padova, Padova, Italy.Technology Center of Mineral Resources and Ceramic (CETMIC), CIC-CONICET-UNLP, Manuel B. Gonnet, Argentina; Department of Chemical Engineering, Universidad Nacional de La Plata, La Plata, ArgentinaDepartment of Civil, Environmental and Architectural Engineering: Dept. ICEA, University of Padova, Padova, ItalyDepartment of Industrial Engineering, Università degli Studi di Padova, Padova, Italy; Corresponding author.Silicate bioceramics, including systems based on the simultaneous presence of wollastonite (CaSiO3) and diopside (CaMgSi2O6), are of great interest in bone tissue engineering applications, especially in form of variously shaped three-dimensional scaffolds, as determined by application of several additive manufacturing technologies. In this framework, silicone resins, properly modified with CaO- and MgO-based fillers and blended with photocurable acrylates, are attractive both as precursors and as feedstock for additive manufacturing technologies, including stereolithography. The use of powder fillers, however, may lead to issues with homogeneity or with printing resolution (owing to light scattering). The present paper aims at presenting the first results from a new concept of incorporation of CaO and MgO, relying on salts dispersed in emulsion within a photocurable silicone/acrylate blend. Direct firing at 1100 °C of printed scaffolds successfully produced wollastonite-diopside glass-ceramic scaffolds, with a very fine crystal distribution. The strength-to-density was tuned by operating either on the topology of scaffolds or on the firing atmosphere (passing from air to N2).http://www.sciencedirect.com/science/article/pii/S2666539523001463StereolithographyPreceramic polymersWollastonite-diopsideEmulsionLiquid feedstock |
| spellingShingle | Hamada Elsayed Franco Matías Stabile Gianpaolo Savio Enrico Bernardo Masked stereolithography of wollastonite-diopside glass-ceramics from novel silicone-based liquid feedstock Open Ceramics Stereolithography Preceramic polymers Wollastonite-diopside Emulsion Liquid feedstock |
| title | Masked stereolithography of wollastonite-diopside glass-ceramics from novel silicone-based liquid feedstock |
| title_full | Masked stereolithography of wollastonite-diopside glass-ceramics from novel silicone-based liquid feedstock |
| title_fullStr | Masked stereolithography of wollastonite-diopside glass-ceramics from novel silicone-based liquid feedstock |
| title_full_unstemmed | Masked stereolithography of wollastonite-diopside glass-ceramics from novel silicone-based liquid feedstock |
| title_short | Masked stereolithography of wollastonite-diopside glass-ceramics from novel silicone-based liquid feedstock |
| title_sort | masked stereolithography of wollastonite diopside glass ceramics from novel silicone based liquid feedstock |
| topic | Stereolithography Preceramic polymers Wollastonite-diopside Emulsion Liquid feedstock |
| url | http://www.sciencedirect.com/science/article/pii/S2666539523001463 |
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