What is High Grade Ceramic ?

[Aladin]

What is high grade ceramic and carbon resistors are made from high grade ceramic why ?
why they are made from carbon ?
please explain reasons

 

[Astronuc]

High grade ceramic usually implies high chemical purity, low porosity and relatively free of flaws (microcracks), in this case for use as an insulator around the conducting carbon. While conducting, carbon is not as conducting as copper or aluminum.

 

[oswaler]

High grade ceramic refers to a type of ceramic material that is of high quality and has desirable properties for use in various applications. This type of ceramic is typically made from a mixture of clay, feldspar, and other minerals that are heated at high temperatures to form a strong, durable, and non-metallic material.

High grade ceramic is commonly used in the production of resistors, which are electronic components that limit the flow of electric current in a circuit. These resistors are essential in controlling the flow of electricity and preventing damage to other components in a circuit.

Carbon resistors, specifically, are made from a mixture of high grade ceramic and carbon. This combination creates a resistor with a high degree of stability and accuracy in its resistance value. Carbon is a conductive material that allows for the flow of electricity, while the ceramic provides structural support and insulation.

The use of high grade ceramic in resistors is important because it allows for a more precise and consistent resistance value, which is crucial in electronic circuits. The high temperature resistance of ceramic also makes it suitable for use in high-power applications, as it can withstand extreme heat without melting or degrading.

Additionally, the use of carbon in resistors allows for a more compact and lightweight design, making them ideal for use in smaller electronic devices. Carbon resistors also have a lower cost compared to other types of resistors, making them a cost-effective option for manufacturers.

In conclusion, high grade ceramic and carbon resistors are made from a combination of materials for their unique properties and advantages in electronic applications. The use of high grade ceramic provides durability, stability, and insulation, while carbon offers conductivity and cost-effectiveness.