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Product Description: Zirconia Toughened Alumina (ZTA) Substrate
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Product Features: High flexural strength, high toughness, good insulation, large size, and laser processable
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Application Scenarios: DBC copper clad laminate, high-power semiconductor modules, motor controllers for new energy vehicles, IGBT modules
ZTA
Performance Parameters
| Material Grade | ZTA | |||
| Content of Al2O3 | wt | % | Al2O3ZrO3 | |
| Appearance | Light yellow | |||
| Roughness | Ra | μm | 0.1~0.2 | |
| Density | Drainage | g/cm3 | ≥4.10 | |
| Light Reflectance | 450nm/1mm | % | 97 | |
| Mechanical Characteristics | Flexural Strength | Three Point Bending Resistance | MPa | ＞650 |
| Fracture Toughness | Indentation Method | MPa.m½ | 4.0 | |
| Vickers Hardness | Load 4.9N | GPa | 15 | |
| Young's Modulus | Stretching Method | Gpa | 310 | |
| Thermal Characteristics | Coefficient of Linear Thermal Expansion | 25~800℃ | x10-6 /K |
8.0 |
| Thermal Conductivity | 25℃ | W/(m.k) | ＞27 | |
| Specific Heat Capacity | 25℃ | J/(kg.k) | 720 | |
| Electrical Characteristics | Dielectric Constant | 1MHz,25℃ | - | 10.4 |
| Dielectric Loss Angle | 1MHz,25℃ | x10-4 | ≤3 | |
| Volume Resistivity | 25℃ | Ω.cm | ≥1014 | |
| Dielectric Strength | DC | KV/mm | ≥15 | |
