Description of Alumina Rods
Alumina rods are solid cylindrical structures made from alumina, a highly versatile ceramic material. They offer excellent electrical insulation, high chemical resistance, and exceptional thermal stability. Widely used in various industries, alumina rods serve as insulators, supports, and structural components in electrical equipment and high-temperature applications. They are valued for their reliability, durability, and resistance to wear and thermal expansion.
Specifications of Alumina Rods
|
Composition
|
UNIT
|
Al95
|
Al99
|
Al997
|
|
Al2O3 Content
|
%
|
95
|
99
|
99.7
|
|
Color
|
|
White
|
Ivory
|
Ivory
|
|
Tensile Strength
|
Kpsi
|
32
|
38
|
36
|
|
Flexural Strength
|
Kpsi
|
52
|
55
|
54
|
|
Compressive Strength
|
Kpsi
|
300
|
377
|
350
|
|
Density
|
g/cc
|
3.70
|
3.90
|
3.92
|
|
Hardness
|
HV, GPa
|
13.8
|
17.2
|
18
|
|
Thermal Conductivity
|
W/(m K)
|
25
|
30
|
30
|
|
C.O.T.E.
|
In / In°C (x10^-6)
|
7.7
|
7.8
|
7.8
|
|
Working Temperature
|
°C
|
1500
|
1650
|
1750
|
|
Dielectric Constant
|
|
9.5
|
9.7
|
9.8
|
|
Volume Resistivity (25°C)
|
Ohm-cm
|
>10^14
|
>10^14
|
>10^14
|
Applications of Alumina Rods
1. Thermocouple Protection: Alumina rods protect thermocouples in high-temperature environments. Their excellent thermal stability and resistance to thermal shock make them ideal for use in furnaces, kilns, and other high-heat applications.
2. Electrical Insulation: Alumina rods are used in electronic components and devices, including insulators for high-voltage applications and substrates for electronic circuits due to their excellent electrical insulation properties.
3. Chemical Processing Equipment: In the chemical industry, alumina rods are used as components in equipment that must resist corrosion and wear from aggressive chemicals and high temperatures.
4. Wear-Resistant Components: The high hardness and wear resistance of alumina rods make them suitable for use in various wear-resistant applications, including bearings, seals, and cutting tools.
5. Medical and Dental Instruments: Alumina rods are employed in medical and dental instruments due to their biocompatibility, high strength, and resistance to wear and sterilization processes.
6. Mechanical Components: They are used in precision mechanical components such as shafts, rods, and plungers in pumps, valves, and other machinery that operate under high-stress and high-wear conditions.
7. Laser and Optics: Alumina rods are used in laser and optical applications due to their ability to transmit certain wavelengths of light and their high thermal conductivity, which helps in dissipating heat generated by laser beams.
8. High-Temperature Furnaces: Employed in high-temperature furnaces as support rods, spacers, and fixtures due to their ability to maintain structural integrity and resist deformation at elevated temperatures.
9. Aerospace and Defense: Used in aerospace and defense applications for their high strength-to-weight ratio, thermal stability, and resistance to harsh environments, contributing to the durability and performance of aerospace components.
10. Analytical Instruments: Alumina rods are used in analytical instruments and laboratory equipment, where their chemical inertness and high-temperature resistance are essential for accurate and reliable measurements.
Packaging of Alumina Rods
Our Alumina Rods are carefully handled to prevent damage during storage and transportation and to preserve the quality of our products in their original condition.
