Laser & Optoelectronics Progress, Volume. 61, Issue 21, 2114010(2024)
Experimental Study on Ultrasonic-Assisted Laser Polishing of Zirconia Ceramics
Figures & Tables(17)
Fig. 1. Ultrasound-assisted laser polishing equipment. (a) Physical drawing; (b) schematic diagram
Fig. 2. Ultrasound-assisted laser polishing schematic. (a) Laser polishing mechanism diagram; (b) laser scan path
Fig. 4. Plots of the effects of significant interaction terms on surface roughness. (a) Laser power and scanning speed interaction on surface roughness; (b) ultrasonic amplitude and laser power interaction on surface roughness; (c) pulse frequency and scanning speed interaction on surface roughness; (d) pulse frequency and laser power interaction on surface roughness; (e) pulse frequency and ultrasonic amplitude interaction on surface roughness; (f) ultrasonic amplitude and scanning speed interaction on surface roughness
Fig. 5. Micro-morphology of the surface observed by confocal microscopy. (a) Original surface; (b) ultrasound-assisted laser-polished surface; (c) laser-polished surface
Fig. 6. XRD analysis of laser-polished samples, pristine samples, and ultrasound-assisted laser-polished samples
Fig. 7. Scanning electron micrographs of the surface before and after laser polishing. (a) Original surface; (b) magnification of the original surface at b; (c) laser-polished surface; (d) magnification of the laser-polished surface at d; (e) ultrasound-assisted laser-polished surface; (f) magnification of the ultrasound-assisted laser-polished surface at f
Fig. 8. EDS element distribution on zirconia surface. (a) Original surface; (b) laser-polished surface; (c) ultrasound-assisted laser-polished surface
Fig. 9. EDS energy spectrum and elemental content of the sample surface. (a) Original surface; (b) laser-polished surface; (c) ultrasound-assisted laser-polished surface
Fig. 11. Graphical representation of friction wear coefficients. (a) Three-dimensional histogram of friction coefficients; (b) line graph of friction wear coefficients for each sample surface
Fig. 12. Schematic of wear track and line profile. (a) Original surface; (b) laser-polished surface; (c) ultrasound-assisted laser-polished surface
Table 1. Main components of yttria-stabilized zirconia ceramic plates
View tableTable 1. Main components of yttria-stabilized zirconia ceramic plates
ZrO2 Y2O3 SiO2 TiO2 Na2O Fe2O3 Others 94.800 5.100 0.030 0.030 0.005 0.007 0.028
Table 2. Input factors and level design for ultrasound-assisted laser polishing response surface optimization test
View tableTable 2. Input factors and level design for ultrasound-assisted laser polishing response surface optimization test
Factors Level Low Medium High Scanning speed ν /（mm/s） 330 380 430 Laser power P /W 75 80 85 Pulse frequency f /kHz 2 3 4 Ultrasonic amplitude A /% 10 20 30
Table 3. Ultrasonic-assisted laser polishing response surface optimization test design matrix and test results
View tableTable 3. Ultrasonic-assisted laser polishing response surface optimization test design matrix and test results
No. Parameter Result No. Parameter Result ν /（mm/s） P /W f /kHz A /% Ra /μm ν /（mm/s） P /W f /kHz A /% Ra /μm 1 330 75 3 20 0.551 16 430 80 4 20 0.602 2 330 85 3 20 0.549 17 380 75 2 20 0.632 3 430 75 3 20 0.605 18 380 85 2 20 0.631 4 430 85 3 20 0.609 19 380 75 4 20 0.583 5 380 80 2 10 0.615 20 380 85 4 20 0.587 6 380 80 4 10 0.553 21 330 80 3 10 0.528 7 380 80 2 30 0.586 22 430 80 3 10 0.583 8 380 80 4 30 0.553 23 330 80 3 30 0.524 9 380 75 3 10 0.581 24 430 80 3 30 0.560 10 380 85 3 10 0.566 25 380 80 3 20 0.522 11 380 75 3 30 0.555 26 380 80 3 20 0.524 12 380 85 3 30 0.573 27 380 80 3 20 0.526 13 330 80 2 20 0.595 28 380 80 3 20 0.521 14 430 80 2 20 0.631 29 380 80 3 20 0.525 15 330 80 4 20 0.530
Table 4. ANOVA for surface roughness modeling
View tableTable 4. ANOVA for surface roughness modeling
Source Sum of squares Mean square Fvalue Pvalue R2=0.9969 =0.9939 =0.9844 Model 0.037 2.611×10-3 326.08 <0.0001 significant A 5.333×10-6 5.333×10-6 0.67 0.4281 B 8.164×10-3 8.164×10-3 1019.45 <0.0001 C 6.627×10-3 6.627×10-3 827.51 <0.0001 D 4.687×10-4 4.687×10-4 58.53 <0.0001 AB 9.000×10-6 9.000×10-6 1.12 0.3070 AC 6.250×10-6 6.250×10-6 0.78 0.3919 AD 2.722×10-4 2.722×10-4 34.00 <0.0001 BC 3.240×10-4 3.240×10-4 40.46 <0.0001 BD 9.025×10-5 9.025×10-5 11.27 0.0047 CD 2.102×10-4 2.102×10-4 26.25 0.0002 Residual 1.121×10-4 8.008×10-6 Lack of fit 9.492×10-5 9.492×10-6 2.21 0.2316 not significant Pure error 1.720×10-5 4.300×10-6 Cor total 0.037
Table 5. Surface residual stresses in zirconia ceramics
View tableTable 5. Surface residual stresses in zirconia ceramics
Material Sample Surface residual stress /MPa Zirconia ceramics Laser processed surface 66.9±5.2 Ultrasonic-assisted laser processed surface -59.0±3.8
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Zhanwang Zhou, Houming Zhou, Zhenyu Zhao, Chao Wang, Junyong Zeng. Experimental Study on Ultrasonic-Assisted Laser Polishing of Zirconia Ceramics[J]. Laser & Optoelectronics Progress, 2024, 61(21): 2114010
Paper Information
Category: Lasers and Laser Optics
Received: Dec. 13, 2023
Accepted: Mar. 18, 2024
Published Online: Nov. 13, 2024
The Author Email: Houming Zhou (zhouhouming@xtu.edu.cn)
CSTR:32186.14.LOP232661
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