Yixing City Kam Tai Refractories Co.,ltd
Yixing City Kam Tai Refractories Co.,ltd Professional Manufacturer of Refractory Kiln furniture and Technical Ceramic
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Alumina ceramic is widely used in many fields. Because of its great performance, it is more and more used in curent society, alumina ceramic substrate can meet the requirement of daily using and specifical features.
We manufactures custom technical ceramics, covering a wide range of customer requirements .We make use of several forming and machining techniques to process components made from alumina Ceramics, This material may be used in applications that require High elevated temperatures ,High dielectric strength, excellent electrical resistance . wear or corrosion resistance .high temperature capability .High Electrical insulation.
Features:
1) A variety of specifications available.
2) Satisfy various technical request
3) Lower medium spoilage
4) Good insulation performance and high temperature resistance
5) Stiffness texture
6) Used in all electric products, electric heating products and wear resistant machinery parts.
●Good strength and stiffness
●Good hardness and wear resistance
●Good corrosion resistance
●High thermal conductivity
●High temperature resistance
●Electrical insulation
●Low dielectric constant
●Mechanical seal rings
●Plungers or pistons for valves
●Electronic substrates
●High temperature thermocouple tubes
●Textile eyelets or guides
●Electrical insulators
●Wear resistant nozzles
●Ceramic parts for high temperature furnace
| Material | 95% Al2O3 | 96% Al2O3 | 99% Al2O3 | 99.5% Al2O3 | 99.7% Al2O3 |
| Color | White/Pink | White | Ivory | Ivory | Ivory |
| Density (g/cm3) | 3.65 | 3.72 | 3.88 | 3.90 | 3.92 |
| Water Absorption (%) | 0 | 0 | 0 | 0 | 0 |
| Moh's Hardness | 9 | 9 | 9 | 9 | 9 |
| Flexural Strength (Mpa) (25℃) | 352 | 358 | 364 | 379 | 375 |
| Compressive Strength (Mpa) (25℃) | 2000 | 2068 | 2500 | 2600 | 2500 |
| Thermal Conductivity (W/m.k) (25℃) | 18-25 | ≥24 | 27 | 30 | 30 |
| Thermal Expansion Coefficient (25-1000℃)(10-6mm/℃) | 8 | 8 | 8 | 8 | 8 |
| Therma Shock Resistance △T(℃) | 220 | 220 | 180-200 | 180-200 | 180-200 |
| Max. Working Temperature (℃) | 1500 | 1650 | 1700 | 1750 | 1750 |
| Dielectric Strength (kv/mm) | 16 | 17.2 | 20 | 22 | 22 |
| Electrical Resistivity (Ω.cm) (25℃) | 1014 | 1014 | 1014 | 1014 | 1014 |
| Dielectric Constant (@1MHz, 25℃) | 9 | 9 | 9.7 | 9.7 | 9.8 |
| Dielectric Loss (tan delta) (@1MHz, 25℃) | 0.0004 | 0.0002 | 0.0001 | 0.0001 | 0.0001 |
