Alessandro MorettiPh.D.Italy
Laser-Based Additive ManufacturingPublished
Dec 11, 2025
Yttria-Stabilized Zirconia Laser Cleaning
When cleaning Yttria-Stabilized Zirconia, you must account for its exceptional thermal stability that resists phase changes even under extreme heat, setting it apart from other ceramics prone to cracking, so start with lower laser intensities to gently remove contaminants while preserving the material's tough, durable structure—watch out for overheating that could still lead to surface flaws
Laser-Material Interaction
Thermal Diffusivity
9.1e-7
m²/s
1e-6
9.1e-7
7.3e-5
Thermal Conductivity
2
W/m·K
1.4
2
127
Ablation Threshold
2.1
J/cm²
0.57
2.1
4
Thermal Expansion
10.5
10^{-6} K^{-1}
3e-6
10.5
1.1e-5
Laser Absorption
0.15
dimensionless (absorptivity)
0.35
0.15
2,625
Laser Damage Threshold
12.5
J/cm²
1.6
12.5
20.9
Specific Heat
480
J/(kg·K)
250
480
2,500
Thermal Destruction
2,923
K
273
2,923
3,900
Laser Reflectivity
0.28
0.05
0.28
0.4
Yttria-Stabilized Zirconia Laser Cleaning Material Characteristics
Youngs Modulus
210
GPa
40
210
679
Oxidation Resistance
0
mg/(cm²·h)
0
0
2,310
Corrosion Resistance
1.2e-8
kg/m²·s
0
1.2e-8
262
Fracture Toughness
5.7
MPa m^{1/2}
0.56
5.7
5.7
Porosity
0.5
%
0
0.5
30
Electrical Resistivity
1e12
Ω·m
0
1e12
1e14
Compressive Strength
2,000
MPa
95
2,000
4,090
Density
6
g/cm³
1.7
6
16.3
Hardness
12.5
GPa
6.7
12.5
3,150
Tensile Strength
250
MPa
5
250
600
Flexural Strength
1,050
MPa
45.6
1,050
1,153
Yttria-Stabilized Zirconia surface magnification
Before Treatment
We've found the contaminated surface looks rough and uneven under magnification. Dirt clings tightly to the grains, creating dark spots everywhere. It hides the material's true texture completely.
After Treatment
After laser treatment, the surface appears smooth and uniform now. Grains stand out clearly without any residue left. This reveals the clean, even finish underneath.
Yttria-Stabilized Zirconia Laser Cleaning Laser Cleaning FAQs
Q: How do I safely laser clean YSZ without causing cracks?
A: I've seen YSZ hold up well during cleaning if you start slow. Begin with low power to gently remove dirt and oxides from the surface. Watch the heat buildup closely, as this material resists thermal shock but can crack under sudden changes. Keep the beam moving steadily to avoid hot spots. This approach brings back the clean finish every time.
Q: What's the best way to remove contaminants from YSZ coatings?
A: When cleaning YSZ, focus on a pulsed laser setup first. This works well because the material's toughness lets it handle short bursts without damage. I've found scanning in overlapping passes removes stubborn buildup like soot effectively. Adjust speed based on layer thickness to ensure even results. Tends to restore the original smooth texture nicely.
Q: Can laser cleaning affect YSZ's thermal properties long-term?
A: Start by testing a small area to check response. YSZ's stability means cleaning rarely alters its heat resistance over time
Related Ceramic › Technical Materials
Yttria-Stabilized Zirconia Laser Cleaning Dataset Download
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