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3D-printed boron nitride nanotube-reinforced polymer-derived ceramics with reduced porosity and enhanced strength

Par Conseil national de recherches du Canada

DOITrouver le DOI : https://doi.org/10.1016/j.compositesb.2025.112991
AuteurRechercher : 1; Rechercher : 1Identifiant ORCID : https://orcid.org/0000-0002-7787-342X; Rechercher : 2Identifiant ORCID : https://orcid.org/0000-0002-4224-8413; Rechercher : 2Identifiant ORCID : https://orcid.org/0000-0002-1548-6504; Rechercher : 3Identifiant ORCID : https://orcid.org/0000-0002-2480-6821; Rechercher : ; Rechercher : ; Rechercher : 2Identifiant ORCID : https://orcid.org/0000-0001-6437-2100; Rechercher : 1Identifiant ORCID : https://orcid.org/0000-0002-8227-3170
Affiliation
  1. Conseil national de recherches du Canada. Aérospatiale
  2. Conseil national de recherches du Canada. Quantique et nanotechnologies
  3. Conseil national de recherches du Canada. Centre de recherche en métrologie
FormatTexte, Article
Sujetpolymer-derived ceramics; additive manufacturing; digital light processing; boron nitride nanotubes; schwarz architecture; mechanical properties; microstructural characterization
Résumé
This study introduces a novel approach for fabricating ceramic structures using a silicon oxycarbide (SiOC) preceramic resin enhanced with boron nitride nanotubes (BNNTs) through digital light processing (DLP). These ceramics feature intricate shapes and high-resolution triply periodic minimal surface (TPMS) architectures with low relative density structures but dense (low-porosity) ceramic features. Incorporating BNNTs at low concentrations (0.2, 0.4, and 0.8 wt%) into a commercially available SiOC precursor, which was then formulated for DLP printing, resulted in a significant reduction in porosity and improved mechanical performance in the polymer-derived SiOC. This combined effect preserved original designs with higher accuracy and significantly enhanced energy absorption and compressive strength of the 3D-printed ceramics compared to baseline SiOC lattices, by factors of 4.4 and 6 times, respectively. Characterization revealed modest changes in storage and loss moduli with BNNT addition, while the BNNT-modified formulation exhibited excellent printability, and ceramic density measurements confirmed a slight increase with BNNT incorporation. This innovative approach, paired with the versatility of additive digital manufacturing, enables the creation of customizable, bio-inspired ceramic structures with tunable properties for aerospace, energy, and biomedical applications.
Date de publication
Maison d’éditionElsevier
Dans
  • Composites Part B: Engineering 308, nº C, 112991 (1 janvier 2026).
Langueanglais
Publications évaluées par des pairsOui
IdentificateurS1359836825009023
Exporter la noticeExporter en format RIS
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Identificateur de l’enregistrement5fe0e828-9445-4f0e-8a43-7427bfb3119a
Enregistrement créé2025-09-29
Enregistrement modifié2025-09-29
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