Products Core Advantages
- A core advantage of steatite ceramics lies in their exceptional electrical insulation performance. Boasting high volume resistivity (exceeding 10¹⁴ Ω·cm at room temperature) and excellent dielectric strength (up to 15–20 kV/mm), they effectively impede electrical leakage and arc formation even under high-voltage and high-frequency conditions. This makes them ideal for insulating components like high-voltage bushings, transformer cores, and capacitor housings, ensuring the safe and stable operation of electrical equipment. Unlike organic insulators that degrade over time due to heat or aging, steatite ceramics maintain consistent insulation properties over long service periods.
- Another standout merit is their superior thermal stability and heat resistance. They exhibit a low coefficient of thermal expansion (4–6 × 10⁻⁶ /℃), enabling them to withstand drastic temperature fluctuations (from -50℃ to 1000℃) without cracking or deformation. This thermal resilience is crucial for applications in high-temperature environments, such as heating elements, automotive engine parts, and industrial furnace components. Additionally, their good thermal conductivity facilitates efficient heat dissipation, protecting sensitive electronic components from overheating damage.
- Steatite ceramics also offer excellent mechanical strength and wear resistance. Despite their brittle nature, they possess high flexural strength and hardness, resisting impact, abrasion, and mechanical stress during assembly and operation. This durability ensures longevity in harsh working conditions, reducing replacement frequency and maintenance costs. Moreover, their dense structure prevents moisture absorption and chemical corrosion, making them resistant to oils, acids, alkalis, and other corrosive media—ideal for use in humid or chemically aggressive settings like marine equipment or industrial pipelines.
- Talc, the main raw material, is abundant and low-cost, lowering production expenses compared to specialized ceramics like alumina or zirconia. Steatite ceramics can be easily shaped via molding, extrusion, or machining into complex geometries with high precision, accommodating the intricate design requirements of modern components. This combination of affordability and manufacturability makes them a cost-efficient choice for mass-produced electrical and industrial parts.
Application Fields
- In the electronics and electrical engineering sector, steatite ceramics are indispensable for insulating and structural components. Due to their high insulation strength (20–30 KV/mm) and low dielectric loss, they are widely used in high-voltage bushings, transformer cores, and capacitor housings, ensuring safe operation of power transmission equipment even under high-frequency and high-voltage conditions. In consumer electronics, they serve as substrates for circuit boards, insulating spacers in smartphones and laptops, and coil formers for inductors—their compact size and processability accommodating miniaturized design needs. Additionally, in automotive electronics, they withstand extreme engine temperatures (-50℃ to 1000℃) as ignition system components and sensor housings, resisting thermal shock and chemical corrosion from engine fluids.
- In metallurgy and heat treatment, they act as refractory linings for industrial furnaces and crucibles, enduring temperatures above 1200℃ without deformation. Their wear resistance (Mohs hardness 8) makes them ideal for mechanical parts like pump seals, valve cores, and bearing sleeves in chemical pipelines, where they resist abrasion from corrosive media (oils, acids, alkalis) and reduce maintenance frequency. In aerospace, lightweight and high-strength steatite ceramic components are used in aircraft electrical systems and engine parts, balancing structural integrity with thermal and electrical performance under extreme altitude and temperature fluctuations.
- In daily life and consumer goods, steatite ceramics enhance product functionality and safety. Kitchenware such as ceramic cooktops and baking dishes benefits from their heat resistance and uniform heat conduction, enabling efficient cooking without cracking. Due to their non-toxic, non-porous nature (water absorption ＜0.5%), they are also used for food-contact utensils and decorative ceramics—high-whiteness grades (≥95%) meet aesthetic and hygiene standards for tableware and bathroom fixtures. Additionally, in home appliances like microwave ovens and electric heaters, steatite ceramic insulators prevent electrical leakage, ensuring user safety while prolonging appliance lifespan.
- In renewable energy, they insulate components in solar inverters and wind turbine generators, withstanding outdoor humidity and temperature variations. In medical devices, biocompatible and sterilizable steatite ceramics are used for insulating parts in diagnostic equipment and surgical instruments, meeting strict hygiene requirements. Even in 5G communication, their low dielectric loss supports high-frequency signal transmission, making them suitable for antenna components and base station hardware.
Service Guarantee
Core Featured Services
- End-to-End Escort for Customized Solutions
Targeting special working conditions across industries (electronics, industrial, daily-use, etc.), we provide full-process customized services from demand research to delivery. Material engineers communicate one-on-one with customers to optimize formulas (e.g., adjusting dielectric loss, thermal shock resistance) based on scenario parameters (such as high-temperature, high-frequency, or corrosive environments). Supporting services including small-batch sampling, performance testing, and mold development are also provided to ensure precise alignment with customer requirements. A customized technical manual, detailing installation, usage, and maintenance key points, is delivered alongside the products.
- Specialized Technical Support for High-Temperature/High-Frequency Scenarios
Focusing on the harsh core application scenarios of steatite ceramics, we have established a dedicated technical team to provide targeted services. For scenarios like high-temperature industrial furnaces and high-frequency electronic components, we offer free on-site working condition surveys, thermal/electrical performance simulation tests, and optimized solutions. In case of abnormalities, remote diagnosis is initiated within 24 hours, and technical personnel are dispatched for on-site troubleshooting within 48 hours to ensure continuous equipment operation.
Technical Specification
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