Silicon nitride ceramic disc with precision holes
Ceramic parts production area in the factory
White ceramic cylinders for industrial applications
Small black ceramic nuts for high-temperature use
Kiln firing ceramic parts at high temperature
Kiln cars entering the high-temperature kiln
  1. Silicon nitride ceramic disc with precision holes
  2. Ceramic parts production area in the factory
  3. White ceramic cylinders for industrial applications
  4. Small black ceramic nuts for high-temperature use
  5. Kiln firing ceramic parts at high temperature
  6. Kiln cars entering the high-temperature kiln

silicon nitride ceramics

Engineered from gas-pressure sintered Si3N4, our high-precision silicon nitride ceramics deliver exceptional mechanical strength, an industry-leading fracture toughness of 6.0–8.0 MPa·m¹/², and superior thermal shock resistance up to 1200°C. Designed for heavy mechanical wear, corrosive chemical fluids, and severe thermal gradients, these components ensure extended mean time between failures (MTBF) across semiconductor, automotive, and high-speed precision machinery applications. Full custom machining down to ±0.002 mm tolerance available.

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Product Description

Silicon nitride ceramic disc with precision holes Small black ceramic nuts for high-temperature use

Core Advantages & Key Features

  • Unmatched Fracture Toughness & Impact Resistance: Achieves a fracture toughness (KIC) of 6.0–8.0 MPa·m¹/² with high flexural strength (>850 MPa), effectively mitigating chipping, micro-cracking, and mechanical shock failure under heavy dynamic loads.

  • Outstanding Thermal Shock Stability up to 1200°C: Features a low thermal expansion coefficient (3.2 × 10⁻⁶/K) and moderate thermal conductivity, withstanding instantaneous thermal differentials exceeding 800°C without micro-structural failure.

  • Exceptional Tribological Performance & Low Inertia: Delivers a Mohs hardness of 9.2 with a density of ~3.23 g/cm³ (approx. 40% the density of bearing steel), minimizing centrifugal stress, frictional heat, and abrasive wear in high-speed kinematic assemblies.

  • Chemical Inertness & High Dielectric Isolation: Completely resistant to concentrated acids (except HF), molten non-ferrous metals, and caustic alkaline atmospheres, alongside robust electrical insulation (>10¹⁴ Ω·cm volume resistivity).

Ceramic parts production area in the factory

 

Technical Specifications

Alumina ceramic technical data table

Industrial Applications

  • Precision Bearings & Rotating Assemblies: Ceramic ball and roller elements for electric vehicle (EV) drive motors, high-speed CNC machine tool spindles, and aerospace turbines, preventing electrical pitting/arcing erosion and friction seizure.

  • Semiconductor & Wafer Processing: Plasma-etch-resistant chamber rings, end effectors, vacuum chuck pins, and substrate supports requiring ultra-low thermal drift, high mechanical rigidity, and non-particle contamination.

  • Non-Ferrous Molten Metal Handling & Welding: Degasser rotors, thermocouple protection sheaths, molten aluminum riser tubes, and projection welding locator pins that resist molten metal erosion, flux attack, and repetitive spatter adhesion.

  • Severe-Service Fluid Handling & Oil/Gas: Valve balls, trim seats, metering orifices, and downhole slurry chokes subjected to abrasive slurry impingement, cavitation, and aggressive multiphase acidic corrosion.

Discuss Your Custom Engineering Specifications

Whether you require standard stock geometries or tight-tolerance custom components machined from your 2D/3D CAD drawings (STEP, DWG, IGES), our technical ceramic engineers provide full-scope DFM (Design for Manufacturing) analysis, raw material traceability, and CMM metrology inspection reports.

  • Fast Feasibility Review & Quote within 24 Hours

  • Strict Quality Assurance (ISO 9001 Certified & Full Dimensional Reports)

  • Submit CAD Drawings or Contact an Application Engineer Today