蓝宝石片, AlO 99.9, 0.25mm厚
产品介绍
| 订货号 | 包装规格 | | Sizes | | 989-691-35 | 25mm x 25mm |
产品参数 | Polish[抛光] | 0.05 - 0.1μm Ra | | Surface Finish[表面光洁度] | Polished On Both Sides | | Thickness[厚度] | 0.25mm | | Type[类型] | Single Crystal | | Pultrusion(挤拉成型) | | Compressive strength ( MPa ) | 2100 | | Mechanical Properties(机械性能) | | Hardness - Knoop ( kgf mm⁻² ) | 2000 | | Hardness - Vickers ( kgf mm⁻² ) | 1600 - 1800 | | Tensile modulus ( GPa ) | 350.00 - 390.00 | | Tensile strength ( MPa ) | 250.00 - 400.00 | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 5.800 @20-1000℃ | | Melting point ( C ) | 2050.00 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 750.0 @25℃ | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 35.00 - 40.00 @20℃ | | Upper continuous use temperature ( C ) | 1800 - 1950 | | Chemical Resistance(耐化学性) | | Acids - concentrated | Good | | Acids - dilute | Good | | Alkalis | Good | | Halogens | Good | | Metals | Good | | Physical Properties(物理性质) | | Apparent porosity ( % ) | 0.00 | | Density ( g cm⁻³ ) | 3.985 | | Refractive index | 1.710-1.790 | | Useful optical transmission range | 200 - 5500 nm | | Electrical Properties(电气特性) | | Dielectric constant | 7.5 - 11.5 | | Dielectric strength ( kV mm⁻¹ ) | 15.0 - 50.0 | | Volume resistivity ( Ohmcm ) | >10¹⁴@25℃ |
其他参数 公差 | 长度 | <100mm | ±1mm |
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| ≥100mm | +2% / -1% | | 直径 | <100mm | ±1mm |
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| ≥100mm | +2% / -1% | | 厚度 | | ±10% |
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| 陶瓷 | ±20% | | 复合材料 | ±20% | | 聚合物 | ±20% | | 长度 1 | <100mm | ±1mm |
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| ≥100mm | +2% / -1% | | 长度 2 | <100mm | ±1mm |
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| ≥100mm | +2% / -1% |
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