红宝石,条, AlO CrO SiO
关注：2223
品牌：Goodfellow
产地：英国
| 订货号 | 包装规格 |
| Length (Square) | |
| 526-447-08 | 12mm |
产品参数
| Length[长度] | 12mm |
| Side Length (Of Longer Side)[边长(长边)] | 2mm |
| Side Length[边长] | 2mm |
| 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 |
其他参数
公差
| 长度 | <100mm | ±1mm |
|---|---|---|
| ≥100mm | +5% / -1% | |
| 边长 | ≤10mm | ±10% |
| >10mm | ±1mm | |
| 边长 （长侧） | ≤10mm | ±10% |
| >10mm | ±1mm |
产品发布日期：2026.01.24
Goodfellow（顾特服）