Yellow Glaze (GSY) for Ceramic Reflectors
Ceramic Reflector is alumina-based ceramic which performs diffuse reflection. It boasts high strength, good thermal conductivity and excellent dimensional and electrical stability at all operating temperatures. A cost-effective alternative to metal-coated reflectors, ceramic reflectors are also resistant to chemical attack and, when sealed with glazes, benefit from an increased life span and reduced total cost of ownership.
Compared with white glaze, yellow glaze Laser Cavity Chamber has the function of absorbing ultraviolet radiation, which can improve the service life of crystals. The temperature of the crystal will not be too high, and ultraviolet radiation will be absorbed by the ceramic core. In the ultraviolet band, the reflectivity decreases by about 50% compared to the wavelength corresponding to white glaze.
Main Physical Characteristics
Material
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Alumina ceramic
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Purity
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99%
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Color
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Yellow
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Bulk Density (fired)
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3.1g/cm3
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Porosity
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22%
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Surface Treatment
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Non-glazed, Semi-glazed, Glazed, Yellow glazed
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Bending Strength
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170MPa
|
Thermal expansion coefficient
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7.9×10-6/C (200-500℃)
9×10-6/C (200~1000℃)
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Thermal shock resistance
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No crack when temperature from 15-100℃ for 150 times
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Product Features
• Resistant to strong laser irradiation
• Low reflectivity on UV wavelength
• Longer life service of crystal rods
Main Applications
• Laser Welding Machine,
• Laser Cutting Machine,
• Laser Marking Machine,
• Medical Laser System
Working Temperature
It is best not to keep the working temperature of glazed ceramic reflectors above 300℃ for a long time, otherwise crystallization may occur.
The working temperature of non glazed ceramic reflectors can be 1200℃.
Reflectivity Spectrum of Yellow Glaze (GSY)