Details
| Original language | English |
|---|---|
| Article number | 1700 |
| Journal | SN Applied Sciences |
| Volume | 2 |
| Issue number | 10 |
| Publication status | Published - 14 Sept 2020 |
Abstract
A defined surface roughness is important for the adhesive bonding of veneering ceramic to zirconia frameworks. Thus, we investigated the effects that sandblasting has upon the surface roughness and residual stress of zirconia. So as to achieve well-defined blasting parameters and also generate highly reproducible results; a custom-made, automated sandblasting machine was constructed (based on a 3D-printer construction kit). Thirty-two samples (measuring 30 mm × 35 mm × 0.2 mm) were cut from densely sintered 3Y-TZP blanks and then ground with a 45 µm grinding disc. After undergoing regeneration firing, the samples were sandblasted with varying working parameters: blasting angle (45°, 60° and 90°); blasting pressure (2 bar, 4 bar and 6 bar); and working distance (0.5 cm, 1.0 cm and 1.5 cm). The sandblasting path was chosen so as to create samples with an even surface roughness. Changes in blasting pressure resulted in the greatest changes in the surface roughness, the highest surface roughness values were achieved with sandblastings perpendicular to the sample surface. Furthermore, a correlation was found between the mean surface roughness and the residual stress.
Keywords
- Dental ceramics, Residual stress, Sandblasting, Surface roughness, Zirconia
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
- Environmental Science(all)
- General Environmental Science
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- General Physics and Astronomy
- Chemical Engineering(all)
- General Chemical Engineering
- Earth and Planetary Sciences(all)
- General Earth and Planetary Sciences
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In: SN Applied Sciences, Vol. 2, No. 10, 1700, 14.09.2020.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Effect of sandblasting on the surface roughness and residual stress of 3Y-TZP (zirconia)
AU - Finger, Christin
AU - Stiesch, Meike
AU - Eisenburger, Michael
AU - Breidenstein, Bernd
AU - Busemann, Sarah
AU - Greuling, Andreas
N1 - Funding Information: This research was supported by the Deutsche Forschungsgemeinschaft (DFG), grant STI 184/11-1. The authors gratefully thank Claudius Lehr for his valuable contribution regarding the assembly of the 3D-printer set and the electronic engineering.
PY - 2020/9/14
Y1 - 2020/9/14
N2 - A defined surface roughness is important for the adhesive bonding of veneering ceramic to zirconia frameworks. Thus, we investigated the effects that sandblasting has upon the surface roughness and residual stress of zirconia. So as to achieve well-defined blasting parameters and also generate highly reproducible results; a custom-made, automated sandblasting machine was constructed (based on a 3D-printer construction kit). Thirty-two samples (measuring 30 mm × 35 mm × 0.2 mm) were cut from densely sintered 3Y-TZP blanks and then ground with a 45 µm grinding disc. After undergoing regeneration firing, the samples were sandblasted with varying working parameters: blasting angle (45°, 60° and 90°); blasting pressure (2 bar, 4 bar and 6 bar); and working distance (0.5 cm, 1.0 cm and 1.5 cm). The sandblasting path was chosen so as to create samples with an even surface roughness. Changes in blasting pressure resulted in the greatest changes in the surface roughness, the highest surface roughness values were achieved with sandblastings perpendicular to the sample surface. Furthermore, a correlation was found between the mean surface roughness and the residual stress.
AB - A defined surface roughness is important for the adhesive bonding of veneering ceramic to zirconia frameworks. Thus, we investigated the effects that sandblasting has upon the surface roughness and residual stress of zirconia. So as to achieve well-defined blasting parameters and also generate highly reproducible results; a custom-made, automated sandblasting machine was constructed (based on a 3D-printer construction kit). Thirty-two samples (measuring 30 mm × 35 mm × 0.2 mm) were cut from densely sintered 3Y-TZP blanks and then ground with a 45 µm grinding disc. After undergoing regeneration firing, the samples were sandblasted with varying working parameters: blasting angle (45°, 60° and 90°); blasting pressure (2 bar, 4 bar and 6 bar); and working distance (0.5 cm, 1.0 cm and 1.5 cm). The sandblasting path was chosen so as to create samples with an even surface roughness. Changes in blasting pressure resulted in the greatest changes in the surface roughness, the highest surface roughness values were achieved with sandblastings perpendicular to the sample surface. Furthermore, a correlation was found between the mean surface roughness and the residual stress.
KW - Dental ceramics
KW - Residual stress
KW - Sandblasting
KW - Surface roughness
KW - Zirconia
UR - http://www.scopus.com/inward/record.url?scp=85100760947&partnerID=8YFLogxK
U2 - 10.1007/s42452-020-03492-6
DO - 10.1007/s42452-020-03492-6
M3 - Article
AN - SCOPUS:85100760947
VL - 2
JO - SN Applied Sciences
JF - SN Applied Sciences
IS - 10
M1 - 1700
ER -