Neoceram N-0 and N-11
Excellent compatibility with quartz optical fiber
Neoceram is a glass-ceramic material with thermal expansion properties similar to quartz glass. It is available in two types: N-0, which is transparent, and N-11, which is white. Precision-machined products made from Neoceram are commonly used as coupler cases and cover glass for optical fibers.
Features
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Excellent alpha-matching with quartz optical fiber
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High dimensional precision
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Exceptional hardness and durability (resistant to water, weather, and vibration)
Properties
| Properties/Glass code | N-0 | N-11 | ||
| Coefficient of thermal expansion | 30-380℃ | ×10-7/K | -1 | 10 |
| 30-380℃ | ×10-7/K | 1 | 13 | |
| Heat resistance temperature (short term)＊ | ℃ | 800 | 900 | |
| Refractive index (nd) | 1.54 | ー | ||
| Density | ×103kg/m3 | 2.5 | 2.5 | |
| Bending strength | JIS R1601 | MPa | 170 | 220 |
| Vickers hardness | Hv (0.2) | 700 | 800 | |
| Young’s modulus | GPa | 94 | 86 | |
| Acid-resistance | 5%HCl, 90%, 24hrs. | mg/cm2 | 0.05 | 0.1 |
| Alkaline-resistance | 5%Na2CO3, 90℃, 24hrs. | mg/cm2 | 0.3 | 0.8 |
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Heat resistance temperature (short term): The temperature at which a 100 x 300 x 3.8 mm thick specimen deflects by 1 mm under its own weight after 24 hours of continuous heating, with a distance of 280 mm between the fulcrum points.
