长光精瓷公司出品的反应烧结碳化硅材料,具有比刚度高、热稳定性好、光学加工性能优异等特点,特别是应用光学领域,是目前光学系统用反射镜的最佳候选材料之一。
Material | Densityp(g/cm3) | Young's ModulusE(GPa) | Thermal Thermal λ(W/ ( m·K ) ) | CTEα (ppm/K at RT) | Specific StabilityE/p | Thermal Stabilityλ/α |
---|---|---|---|---|---|---|
Preferred value | Small | Large | Large | Small | Large | Large |
Corning Fused Silica | 2.2 | 73 | 1.4 | 0.5 | 33.18 | 2.8 |
Corning ULE | 2.21 | 67 | 1.3 | 0.015 | 30.32 | 86.67 |
Schott Zerodur | 2.53 | 92 | 1.46 | 0.02 | 36.36 | 73 |
Be | 1.85 | 287 | 216 | 11.3 | 155.14 | 19.12 |
CIOMP-SIC | 3.02 | 345 | 180 | 2.4 | 114.24 | 75 |
6061Aluminum | 2.7 | 68 | 167 | 23 | 25.19 | 7.26 |
Single Crystal Silicon | 2.33 | 130 | 148 | 2.5 | 55.79 | 59.2 |