Dispersion-strengthened Zirconia-Toughened Alumina (ZTA) structural ceramics combining alumina's extreme hardness (1,650 HV) with zirconia's transformation-toughened fracture resistance (6–8 MPa·m½).
By dispersing sub-micron metastable tetragonal zirconia (10–20 wt% 3Y-TZP) uniformly within a high-purity α-alumina matrix, Zirconia-Toughened Alumina (ZTA) bridges the gap between standard 99.5% alumina and pure YSZ zirconia.
Stress-induced tetragonal-to-monoclinic phase transformation at crack tips nearly doubles fracture toughness over monolithic alumina while retaining higher hardness, higher thermal conductivity, and lower cost than pure zirconia.
| Property / Metric | Nominal Reference Value (Grade Dependent) |
|---|---|
| Composition | 80–90 wt% Al2O3 + 10–20 wt% YSZ |
| Bulk Density | 4.10 – 4.35 g/cm³ |
| Flexural Strength | 650 – 850 MPa |
| Fracture Toughness (KIC) | 6.0 – 8.0 MPa·m½ |
| Vickers Hardness | 1,600 – 1,750 HV10 |
Reference values reflect typical sintered, fused, or wrought grades. Exact batch test figures are confirmed on your written quotation and accompanying lot Certificate of Analysis.
Specify stock dimensions or attach a 2D/3D engineering drawing with concentricity and surface-finish requirements.
Include target quantity, destination country/postal code for express air freight calculation, and any special cleanroom bagging or certification requests.
Prepare Zirconia-Toughened Alumina (ZTA) Structural & Wear Components RFQ ↗Complementary furnaceware, substrates, PVD consumables, and refractory hardware frequently ordered together.
TB-ZRO2-CRTransformation-toughened 3Y-TZP structural zirconia parts and ultra-refractory YSZ/Mg-PSZ crucibles, setter plates, and tubes rated up to 2,100 °C.
TB-SIC-CMPExtreme-hardness sintered silicon carbide (SSiC) and thermal-shock-proof silicon nitride (Si3N4) wear components, kiln furniture, seal rings, and molten-metal hardware.
TB-AL2O3-PLThin tape-cast electronic substrates (96% / 99.6%) and thick precision-ground alumina setter and wear plates with optional laser cutting or CNC machining.
Submit your purity grade, geometry, quantity, and documentation requirements. Every order includes the producing mill's batch Certificate of Analysis (COA) and pre-shipment dimensional verification.