Hard Alloy Tungsten Drill Bits for Sirona Cerec Mc X and Milling Instruments

• Surface Treatment: Passivating
• Energy Source: Ultrasonic
• Material: Tungsten Carbide
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: carbide tungsten
• Package Size: 20.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 1.000kg

Product Description

Aluminum Nitride Ceramics are ceramics with aluminum nitride (AIN) as the main crystal phase.
AlN crystals use [AIN4] tetrahedrons as the structural unit covalent bond compounds, with a wurtzite structure, belonging to the hexagonal system. Chemical composition: AI 65.81%, N 34.19%, specific gravity 3.261g/cm3, white or off-white, single crystal is colorless and transparent, the sublimation decomposition temperature under normal pressure is 2450°C. A high-temperature heat-resistant material. Thermal expansion coefficient (4.0-6.0)X10-6/°C. Polycrystalline AIN thermal conductivity of 260W / (m.k), 5-8 times higher than aluminum oxide, so the heat and shock resistance, can withstand extremely hot 2200 °C. In addition, aluminum nitride has the property of being free from attack by molten aluminum and other molten metals and gallium arsenide, and particularly has excellent corrosion resistance to molten aluminum liquid.

Application:
1. Application of optical communication devices

2. Special refrigeration unit

3.LED industry

4. Automotive electronic module

5. High efficiency power module

6. High frequency microwave application

7. Power electronic components

Material's mechanical properties and thermal conductivity dielectric properties.
 

Aluminum Nitride Ceramics Properties
Color	Gray	Density	3.26g/cm3
Melt Point	2200ºC	Boiling Point	2517ºC
Thermal Conductivity	320 W/m.K	Thermal expansion coefficient	3.5×10^-6K^-1
Specific heat	740J/(Kg.ºC)	Volume resistivity	>1014Ω.cm
Dielectric constant	8.2~9@1Hz	Hardness(Mohs)	9~10

 

The products series include kinds of new materials such as structural products and functional ceramic products, such as Alumina, Aluminum Nitride, Zirconia, Silicon Nitride and Boron Nitride ceramics are the main products in the list. Zirconia derivative products such as high purity zirconia, Yttria stabilized zirconia(YSZ or Y-TZP), and Magnesia stabilized Zirconia(MgO-PSZ), and Ceria stabilized Zirconia(CeO-PSZ), structural zirconia ceramics, etc. For the zirconia products have many excellent properties such as high hardness, high strength and toughness, super low chemical and mechanical corrosive, insulated in common temperature, and magnetic proofing, so they are extensively applied in optic, electronic, mechanical and chemical industry, etc. And Alumina ceramics is more widely applied in industrial.

Tianjin Yinghua Material Tech Co.,Ltd is located in Tianjin City, China, which is the economic center of north China and with a convenient transportation and excellent business service.
The company insists the spirit of Products Innovating, Technology Service and Customer Value, and wish to develop with the customers and suppliers. All customers and friends are welcome!