Yttria-stabilized Zirconia Ceramic Insulating Ring for Semiconductor

Yttria-stabilized Zirconia Ceramic Insulating Ring for Semiconductor

Product Description

YSZ Ceramic Insulator Rings are high-performance, precision ceramic components manufactured through high-temperature sintering, utilizing high-purity zirconia (ZrO₂) as the base material and yttria (Y₂O₃) as the stabilizer. Yttria doping stabilizes the zirconia crystal structure from the monoclinic phase to the tetragonal or cubic phase, effectively preventing volume expansion and micro-cracking caused by phase transitions, thereby imparting the material with exceptional mechanical strength, thermal stability, and electrical insulation properties. With a density of 5.95–6.1 g/cm³, a hardness exceeding 9 on the Mohs scale, a flexural strength of 800–1200 MPa, and a fracture toughness of 5–10 MPa·m¹/², these rings combine a metal-like elastic modulus with the wear and corrosion resistance of ceramics, making them an ideal choice for electrical insulation and structural support under extreme operating conditions.

Key Material Properties

1. Excellent electrical insulation properties

    volume resistivity: >10¹² Ω·cm (20°C)

    dielectric strength: 10–15 kV/mm

    maintains stable insulation characteristics in high-temperature and high-frequency environments; suitable for high-voltage, high-power electrical systems.

2.Excellent mechanical properties

   high flexural strength: 900–1200 MPa, far exceeding standard alumina ceramics

   high compressive strength: 2000–3000 MPa

   high fracture toughness: 7 MPa·m¹/² (crack propagation inhibited by the tetragonal phase transformation toughening mechanism)

   vickers hardness: 1200–1400 HV, with excellent wear resistance

3.Excellent thermal properties

   low thermal conductivity: 2–3 W/m·K (approximately 10–20% that of alumina), offering superior thermal insulation

   thermal shock resistance: ΔT 280–350°C; withstands rapid heating and cooling cycles

   coefficient of thermal expansion: 10.3×10⁻⁶/°C (20–1000°C); similar to steel, facilitating integration with metal components

   long-term operating temperature: up to 850–1000°C; withstands temperatures exceeding 1500°C for short periods

4.Excellent chemical stability

   resistant to acid and alkali corrosion and molten metal erosion

   resistant to organic solvents and volatile chemical media

   oxidation and aging resistant; suitable for harsh chemical environments

Product Specifications

Remark: Customization of yttria content (3 mol%, 5 mol%, 8 mol%) and special dimensions is available upon request.

Product Applications

1.Heat treatment and high-temperature processing

   heat treatment furnaces: serve as heating element supports and electrical isolation components in vacuum and atmosphere furnaces.

   thermocouple protection tubes: ensure the electrical safety of high-temperature measurement systems.

   sealing rings for furnace process tubes: resistant to high-temperature gases and corrosion by molten materials.

2.Electronics and semiconductor manufacturing

   transistor insulators and support rings for electronic packaging substrates

   support rings for ceramic ferrules in fiber-optic connectors

   insulating structural components for heat dissipation in high-power devices

   precision insulating spacer rings for semiconductor equipment

3.Energy and power Eeuipment

   solid Oxide Fuel Cell (SOFC) Sealing and Insulation Rings

   ceramic rings for High-Temperature Oxygen Sensors

   structural Components for Gas Turbine Thermal Barrier Coating Systems

4.Machinery manufacturing and wear-wesistant components

   mechanical seal rings: D=dynamic sealing and insulation for pumps, valves, and compressors

   wire-drawing die guide rings: highly wear-resistant, insulating positioning for wire forming

   precision bearing spacer rings: insulation and positioning for high-load, high-speed applications

5.Aerospace and specialty equipment

   insulation rings for aero-engine hot-section components

   protective rings for high-temperature sensors

   structural insulation components for spacecraft thermal control systems

Product  Competitive Advantages

1. Phase-transformation toughening technology: utilizes stress-induced tetragonal-to-monoclinic phase transformation to absorb crack propagation energy, resulting in fracture toughness 3–5 times that of standard ceramics.
2. Near-theoretical density sintering: achieves >99% of theoretical density with extremely low porosity, ensuring superior insulation properties and mechanical strength.
3. Precision machining capabilities: supports laser cutting and precision grinding, with dimensional tolerances as tight as ±0.005 mm.
4. Customizable materials: offers various formulations, including 3Y-TZP (high toughness), 8Y-TZP (high ionic conductivity), and composite-doped variants.
5. Metal compatibility: thermal expansion coefficients match those of steel and iron-based alloys, enabling ceramic-metal composite structural designs.

Quality Control and Standards

1.Complies with standard YY/T 1715-2020: *Surgical implants — Yttria-stabilized tetragonal zirconia (Y-TZP) ceramic materials

2.Raw material purity ≥99.9%; strict control over batch-to-batch consistency

3.Comprehensive testing throughout the process: density, hardness, flexural strength, microstructure (SEM), and phase composition (XRD)

4.Supports testing and certification by authoritative third-party institutions

Customized Services

1. We provide end-to-end services ranging from material formulation and prototyping to mass production, supporting the following customizations:
2. Dimensions & Specifications: inner diameter, outer diameter, height, and wall thickness customized to requirements
3. Surface Treatment: mirror polishing (Ra < 0.1 μm), precision grinding, and laser drilling
4. Special Properties: high-temperature resistance (>1200°C), high insulation, and enhanced thermal shock resistance
5. Composite Structures: metal inserts, multi-layer composites, and threading/grooving

Our workshop

Why choose us?

1.Customized R&D, rather than standard product adaptation

2.Deep control of materials science：Material Selection Based on Needs，Microstructure Optimization，Batch Consistency

3.Precision machining capability：Flatness can reach 0.001mm, parallelism 0.002mm, and roughness Ra 0.1μm.

FAQ

Q1: What products does your company offer?

We specialize in high-performance ceramics such as alumina and silicon nitride, providing insulators, structural components, wear-resistant parts, and customized solutions.

Q2: Can you customize non-standard parts?

Yes. We support processing based on provided drawings and collaborative technical development, offering a full-process service from design to mass production.

Q3: What about accuracy and delivery time?

Standard tolerance ±0.05mm, precision grade ±0.01mm; samples 7-15 days, bulk orders 20-30 days.

Q4: Main application areas?

Power, electronics, machinery, chemical, and aerospace industries.

Q5: Quality assurance measures?

Full-process quality inspection, providing material reports and performance test data, supporting third-party certification and testing.

Q6: Do you provide technical support?

We provide professional support such as material selection consultation, design optimization, and failure analysis.