XMCERA | Alumina Ceramic Resistor Rod
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Alumina ceramics are the most common advanced ceramic materials and have been widely used in many industries, such as the electronic medical industry and the mechanical industry.
Alumina ceramics can be divided into several application grades according to their alumina purity, the more common are 95% alumina and 99% alumina, which have excellent physical properties.
| Properties | Units | 90% Al2O3 | 96% Al2O3 | 99% Al2O3 | 99.5% Al2O3 |
| Density | gm/cc | 3.60 | 3.72 | 3.80 | 3.90 |
| Color | White | White | Ivory | Ivory | |
| Flexural Strength(MOR) | Mpa | >230 | >280 | >300 | >300 |
| Elastic Modulus | Gpa | 276 | 303 | 250 | 370 |
| Poisson’s Ratio | 0.22 | 0.21 | 0.22 | 0.22 | |
| Compressive Strength | Mpa | 2482 | 2068 | 2500 | 2600 |
| Hardness | Gpa | 10.4 | 11.5 | 13.7 | 14.1 |
| Thermal Conductivity | W/m°K | 16.7 | 24.7 | 27.5 | 30.0 |
| Maximum Use Temperature | °C | 1500 | 1700 | 1700 | 1750 |
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Alumina ceramics are used as resistor ceramics in metal oxides, carbon films, metal films, thin films and wire-wound resistors. Its use as a core material can reduce the noise of the resistor and provide a more stable resistance, which allows it to ensure high power while achieving higher integrated density.
 High Chemical Resistant |
 High Mechanical Strength |
 High Frequency Insulation |
 High Temperature Resistance |
Resistor ceramics has a variety of roles in electronic circuits, including but not limited to the following:
| Current Limiting | Limit the size of the current and protect circuits and components from excessive current shock. |
| Partial Pressure | Used in voltage division circuits to distribute the input voltage to a lower voltage value. |
| Filter | By selecting the appropriate resistance value, the signal of the specific frequency range can be filtered. |
| Current Detection | Used as a current detection device. By measuring the voltage difference between the two ends of the ceramic resistor, the current value in the circuit can be calculated. |
Resistor ceramics are widely used in electronic equipment, communication equipment, medical equipment, automotive, aerospace and other fields.
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XMCERA engages in R&D, manufacturing and selling the products of advanced ceramic materials including Aluminum Nitride, Aluminum Oxide, Zirconium Oxide, Boron Nitride, Silicon Nitride, Machinable Glass Ceramic and other advanced materials. Through different manufacturing processes. We supply metallized ceramic components, alumina heater, ceramic pump components and other ceramic components as request.
XMCERA is a professional high-tech enterprise, it has 15 years history of R&D, manufacture and sales in advanced ceramic materials. We have ISO9001:2015 and ISO14001:2015, also cooperate with Chinese University in advanced materials. Many products are awarded as hi-tech products and obtain patents.
