氮化硼,棒, BN, 12.7mm 直径
产品介绍
| 订货号 | 包装规格 | | Length (Round) | | 287-180-51 | 25mm | | 897-563-53 | 50mm | | 195-448-67 | 100mm | | 431-076-78 | 200mm | | 498-967-31 | 205mm |
产品参数 | Diameter[直径] | 12.7mm | | Length[长度] | 25mm - 205mm | | Production Method[生产方法] | Hot Pressed | | Physical Properties(物理性质) | | Apparent porosity ( % ) | 2.00 - 15.00 | | Density ( g cm⁻³ ) | 1.900 - 2.200 | | Mechanical Properties(机械性能) | | Shear strength ( MPa ) | 12 - 25 | | Tensile modulus ( GPa ) | 20.00 - 35.00 | | Chemical Resistance(耐化学性) | | Acids - concentrated | Fair | | Acids - dilute | Fair | | Alkalis | Fair | | Halogens | Poor | | Metals | Good | | Electrical Properties(电气特性) | | Dielectric constant | 4.3 | | Dielectric strength ( kV mm⁻¹ ) | 40.0 - 200.0 | | Volume resistivity ( Ohmcm ) | 10¹¹-10¹⁴@25℃ | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 1.000 - 36.000 @20-1000℃ | | Specific heat ( J K⁻¹ kg⁻¹ ) | 800.0 - 2000.0 @25℃ | | Sublimation point ( C ) | 2600 - 2800 | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 15.00 - 50.00 @20℃ | | Upper continuous use temperature ( C ) | 950 - 2500 | | Pultrusion(挤拉成型) | | Compressive strength ( MPa ) | 30 -120 |
其他参数 公差 | 直径 | ≤10mm | ±10% |
|---|
| 聚合物 | +20% / -10% | | 陶瓷 | +20% / -10% | |
| >10mm | ±5% | | 陶瓷 | +20% / -10% | | 聚合物 | +20% / -10% | |
| 长度 | <100mm | ±1mm |
|---|
| ≥100mm | +5% / -1% |
| |
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