Low REsistivity Silicon Carbide

EDM Material Silicon Carbide Machining

A variant of SIC, low-resistivity silicon carbide is engineered to have reduced electrical resistånce. This material is suitable for high electrical conductivity applications. SIC is an electrical semiconductor or insulator.  

SiC Sintered silicon carbide EDM - Calix Ceramics
die-sinking EDM sintered silicon carbide - calix ceramics

low resistivity silicon carbide characteristics

High mechanical strength means reliability in high-stress applications. 

Excellent thermal conductivity facilitates heat dissipation. 

Ideal for electrical discharge machinery (EDM) and other electronic applications. 

Ideal for harsh chemical environments. 

Withstands extreme temperatures without degradation. 

Surpasses many ceramic materials and metals in durability. 

low resistivity silicon carbide applications

EDM (Electrical discharge machining)

EDM (Electrical Discharge machining)

Acts as a workpiece material in precision machining.

wear-resistant parts

wear-resistant parts

Nozzles, seals, and bearings for extreme environments.

heating elements

heating elements

High-temperature resistant components.

defense and aerospace

defense and aerospace

Structural parts, sensors, heat sheilds.

semi conductor

semi conductor

High-frequency and high-power devices.

Low Resistivity Silicon Carbide Properties

All properties are at room temperature (20°C) unless otherwise stated.

Composition Grain Size (μm) Density (g/cc) Hardness (Vickers) (GPa) Young's Modulus Coefficient of Thermal Expansion - 20-700°C (ppm/K) Thermal Conductivity (W/mK) Electrical Resitivity - Four Terminal (Ω-cm)
SiC 4-10 2.90-2.96 15 256-296 4.1 140 10^-2

benefits of low resistivity silicon carbide

Long Service Life • Precision Machining Compatibility • Enhanced Electrical Performance • High-Temperature Stability • Corrosion Resistance

Low Resistivity Silicon Carbide FAQs

What is the difference between low-resistivity SIC and standard SIC?

Standard SIC is an insulator or semiconductor of heat, low-resistivity SIC has ehanced electrical conductivity due to doping (introducing small amounts of impurities into a material intentionally to modify it's electrical properties).

Is low-resistivity of SIC brittle?

Low-resistivity SIC has a high toughness so it's durable, not brittle, in demanding applications.

After standard ceramic manufacturing, is machining easy?

Yes, due to its ease of machining, low-resistivity ceramics are used in EDM machining, complex geometries are cut with precision.

Is low-resistivity SiC better than traditional EDM materials?

Compared to traditional EDM materials, like graphite or copper, SiC offers higher wear resistance, better thermal stability, and superior electrical conductivity. It is also more durable than graphite.

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