红宝石,粉末, AlO CrO SiO, 45μm 最大粒度
产品介绍
Cr₂O₃ Content: 0.1% | 订货号 | 包装规格 | | Weight | | 370-066-91 | 20g | | 426-863-32 | 50g | | 796-237-26 | 100g |
产品参数 | Maximum Particle Size[最大粒度] | 45μm | | Weight[重量] | 20g - 100g | | Mechanical Properties(机械性能) | | Hardness - Knoop ( kgf mm⁻² ) | 2000 | | Hardness - Vickers ( kgf mm⁻² ) | 2500 - 3000 | | Tensile modulus ( GPa ) | 350.00 - 390.00 | | Tensile strength ( MPa ) | 250.00 - 400.00 | | Physical Properties(物理性质) | | Apparent porosity ( % ) | 0.00 | | Density ( g cm⁻³ ) | 3.980 | | Useful optical transmission range | 150 - 5500 nm | | Pultrusion(挤拉成型) | | Compressive strength ( MPa ) | 2100 | | 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℃ | | Chemical Resistance(耐化学性) | | Acids - concentrated | Good | | Acids - dilute | Good | | Alkalis | Good | | Halogens | Good | | Metals | Good | | 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 |
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