1. High alumina purity:al2o3>99%,good corrosion resistance.
2. High temperature resistance,1600C in long use,1800C in short use.
3. Good thermal shock,no easy to crack.
4. High slip casting density
5. It is inert in hydrogen and carbonaceous atmospheres and offers high resistance to alkalies and other fluxes. It is suitable for glass melting, including borosilicate glass. Recommended for use with refractory metals such as molybdenum, platinum, rhodium, tungsten, tantalum and iridium.
Technical parameters
Name | Unit | Alumina | Zirconia | ||
Content | % | ≥95 | ≥99 | ≥99.7 | ≥94 |
Density | g/cm3 | 3.65 | 3.80 | 3.90 | 6.00 |
Hardness (Hv0.5) | GPa | 13.1 | 15.0 | 17.1 | 13.2 |
flexural strength
| MPa≥ | 340 | 310 | 370 | 1000 |
Elasticity | GPa | 300 | 330 | 350 | 200 |
Poisson's ratio
|
| 0.23 | 0.23 | 0.23 | 0.30 |
Max Tem. | °C≥ | 1400 | 1750 | 1800 | 1050 |
Heat expansion | ×10-6/°C(40-800°C) | 7.8 | 8.0 | 8.0 | 11.0 |
Thermo conductivity
| W/m·K( 20°C) | 22 | 28 | 31 | 2.6 |
Thermal Resistance | °C | 200 | 200 | 230 | 300 |
dielectric strength
| V/m | 15×106 | 15×106 | 15×106 | 11×106 |
dielectric phase angle (1MHz) | ×10-4 | 4 | 2 | 1 | 16 |
SIC(1MHz) |
| 9.2 | 9.8 | 9.9 | 33 |
Nitric Acid (60%)90°C | WT Loss mg/cm2/day≤ | 0.12 | 0.10 | 0.05 | ≠0 |
Sodium hudroxide (30%)80°C | WT Loss mg/cm2/day≤ | 0.53 | 0.26 | 0.04 | 0.08 |
Packaging & Shipping
Packaged by polybay and bubble bag in the stardard export carton,
Every package can be offered with English installation instruction.
Company Information
HIGHBORN is one of the leading high quality quartz glass and precise ceramics manufacturer and supplier in China.
HIGHBORN has always been a defining force in the sale and fabrication of quartz glass within the semi-conductor, chemical, solar Energy and precise ceramics within semi-conductor , solar energy, textile, electronic, and laser industries.
Not only have we mastered the fabrication technology, our strength has always been based around listening to and understanding our customer's requirements and expectations.
Continuous improvement in all areas of our business is key to our growth. What is equally important to us is maintaining in business, our inherent family values of trust, faimess and respect to our employees, suppliers and customers.
Certificate
Our Service
FAQ
Q: Are you trading company or manufacturer ?
We have our own company and factory.
Q: We mainly accept T/T, West Union, Credit card and L/C.
Paypal will be available in the near future.
Q: Can you supply samples before placing an order?
Yes. also available in stock.
Q: Where is your main market?
We have been exported to USA, Korea, UK, France, Russia, Germany, India, Spain, Brazil etc, so far, there is about 94 countries we have been exported, we also get good reputation from our customers.
Q: Do you accept customized dimension?
Yes, we can produce ceramic parts per customer's request.