Sinterability of binder-jetted scaffolds of bioactive glasses with different crystallization tendencies

Blaeß C, Nawaz Q, Varlik E, Boccaccini AR, Müller R (2026)

Publication Type: Journal article

Publication year: 2026

Journal

Journal of Non-Crystalline Solids Elsevier

Book Volume: 686

Article Number: 124135

DOI: 10.1016/j.jnoncrysol.2026.124135

Abstract

The sinterability of scaffolds, 3D-printed by binder jetting, and their uniaxially pressed compact counterparts made from the bioactive glasses BG 13–93 and BG F3 was investigated with heating microscopy, DTA, optical and electron microscopy, and XRD. As the 3D-printed specimens had lower initial relative densities, more shrinkage and more time to reach full densification were needed. In the case of the slow-crystallizing BG 13–93, this delay did not provoke crystallization-induced sinter retardation. For the more readily crystallizing BG F3, however, a final relative density > 95% was reached only for the particle size fraction <32 µm. For this particle size fraction, the BG 13–93 scaffolds reached bending strengths quite similar to those measured on bulk glass samples, whereas BG F3 scaffolds reached about 30% less. In vitro cell viability tests on (<32 µm)-scaffolds proved their cytocompatibility with pre-osteoblasts on both BGs.

Authors with CRIS profile

Qaisar Nawaz Lehrstuhl für Werkstoffwissenschaften (Biomaterialien) Ertugrul Varlik Lehrstuhl für Werkstoffwissenschaften (Biomaterialien) Aldo Boccaccini Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)

Involved external institutions

Universidade Federal de São Carlos (UFSCar) / Federal University of São Carlos BR Brazil (BR) Bundesanstalt für Materialforschung und -prüfung (BAM) DE Germany (DE)

How to cite

APA:

Blaeß, C., Nawaz, Q., Varlik, E., Boccaccini, A.R., & Müller, R. (2026). Sinterability of binder-jetted scaffolds of bioactive glasses with different crystallization tendencies. Journal of Non-Crystalline Solids, 686. https://doi.org/10.1016/j.jnoncrysol.2026.124135

MLA:

Blaeß, Carsten, et al. "Sinterability of binder-jetted scaffolds of bioactive glasses with different crystallization tendencies." Journal of Non-Crystalline Solids 686 (2026).

BibTeX: Download