Stereolithographic Additive Manufacturing of High Precision Glass Ceramic Parts
Abstract
:1. Introduction
2. Materials and Methods
2.1. Lithograpy-Based Ceramic Manufacturing
2.2. Support Structures
- cusps
- distal and mesial surfaces
- gap between crown and core (inner surface).
2.3. Digitizing Methods
3. Results and Discussion
3.1. Resolution Tests
3.2. Scaling Factor
3.3. Comparison of Different Scan Methods
3.4. Comparison of Different Support Designs
4. Conclusions
5. Patents
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Material | |||||
---|---|---|---|---|---|
Al2O3 | ZrO2 | 45S5 Bioglass® | Ca3(PO4)2 | Li2Si2O5 | |
Measured biaxial bending strength (MPa) | 521 | 1098 | 124 | 32 | 344.5 |
Biaxial bending strength in literature (MPa) | 300–580 | 1000 | 42 | 24 | 215–400 |
Density (g/cm3) | 3.82 | 5.9 | 2.7 | 3.14 | 2.508 |
Relative Density (%) | 99.6 | 99.92 | >99 | 88 | >99.9 |
Solid loading—green parts (%) | 50 | 42 | 47.7 | 50 | 54.3 |
Component | wt % |
---|---|
Bifunctional methacrylate | 7.3 |
Trifunctional acrylate | 9.2 |
Photo initiator | 0.05 |
Light absorber | 0.0025 |
Solvent | 9.445 |
Dispersing agent | 1 |
Glass ceramic powder | 73.0025 |
Method | Image | Detail A | Detail B |
---|---|---|---|
3Shape D810 | --- | ||
Alicone Infinite Focus G5 | |||
Renishaw Cyclone 2 Tactile measurement | --- | ||
Scanco Micro CT 100 | --- |
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Schönherr, J.A.; Baumgartner, S.; Hartmann, M.; Stampfl, J. Stereolithographic Additive Manufacturing of High Precision Glass Ceramic Parts. Materials 2020, 13, 1492. https://doi.org/10.3390/ma13071492
Schönherr JA, Baumgartner S, Hartmann M, Stampfl J. Stereolithographic Additive Manufacturing of High Precision Glass Ceramic Parts. Materials. 2020; 13(7):1492. https://doi.org/10.3390/ma13071492
Chicago/Turabian StyleSchönherr, Julia Anna, Sonja Baumgartner, Malte Hartmann, and Jürgen Stampfl. 2020. "Stereolithographic Additive Manufacturing of High Precision Glass Ceramic Parts" Materials 13, no. 7: 1492. https://doi.org/10.3390/ma13071492