Durable Zirconia Ceramic Ring for High Temperature Insulation Square Ceramic Ring

﹡Product Overview

Our 3Y-TZP zirconia (ZrO₂) ceramic rings are engineered for extreme temperature insulation, wear resistance, and mechanical stability in demanding industrial applications. Available in standard and custom geometries.

﹡Key Technical Specifications

✅ Material: 94% ZrO₂ + 5.2% Y₂O₃ – 3Y-TZP formulation

✅ Density: ≥6.05 g/cm³ – Near-zero porosity

✅ Flexural Strength: 1,200-1,500 MPa

✅ Hardness: 1,250-1,350 HV

✅ Max Operating Temp: 1,200°C continuous (1,500°C intermittent)

✅ Thermal Conductivity: 2-3 W/(m·K) – Excellent insulation

✅ Thermal Expansion: 10.5×10⁻⁶/K (25-500°C)

✅ Surface Finish:

As-sintered: Ra 0.2-0.4µm

Polished: Ra <0.05µm

✅ Standard Sizes:

OD: 10-200mm (±0.02mm)

ID: 5-180mm

Thickness: 2-50mm

﹡Industry Applications

1. High-Temperature Furnaces

Thermal break rings – Isolate heating zones up to 1,400°C

Kiln furniture spacers – Prevent heat transfer between stacked elements

2. Semiconductor Manufacturing

Plasma chamber insulators – Non-contaminating, RF-transparent

Wafer handling rings – Static-free, particle-free

3. Mechanical Seals

Pump seal faces – 10× lifespan vs. silicon carbide in abrasive media

Bearing isolators – Eliminate galvanic corrosion

4. Medical Devices

MRI-compatible implant components – Biocompatible (ISO 13356)

Dental sintering trays – Withstand repeated 1,450°C cycles

5. Energy Systems

SOFC stack components – Ionic insulation layers

Thermocouple protection rings – Molten metal resistance

﹡Competitive Advantages

✔ Metal-Like Toughness – 6-8 MPa·m¹/² fracture toughness

✔ Precision Manufacturing – ±0.01mm dimensional tolerance

✔ Custom Solutions – Tapered, grooved, or metallized designs

✔ Hybrid Assembly Ready – CTE-matched to stainless steel

﹡Why Choose Zirconia Ceramic Ring?

Zero Thermal Degradation – No phase transformation below 1,200°C

Customizable – Laser marking, chamfering, threading services

Technical Support: Free thermal stress simulation

Request Sample: Send your CAD for performance validation!

﹡Production process

1. Grind and crush the raw materials to be slurry or powder

2. se-different method to making the slurry or powder into semi-finished products

3. Put the semi-finished products into the kiln for dewaxing and sintering;

4. After forming and sintering, Ceramic Sleeves products can also be processed by subsequent CNC precision machining according to the drawing requirements. Then Q/C test.

5. Finally package Ceramic Sleeves by bubble paper or cartons and place it on tray for delivery

﹡Certifications

﹡Company

Yixing Shengda Refractory Ceramic Co, Ltd. was established in Yixing City, China in 1995, witha production area of over 10,000m2. lt is an enterprise specializing in the production of aluminaceramic,zirconia ceramic,slicon nitride, silicon carbide and other precision ceramic products. 

And we also produce ceramic band heaters, ceramic terminal block, cordierite and mullite ceramic parts an other ceramic products.

﹡Ceramic Properties