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Sapphire characteristics
| Materials characteristics |
| Item | B270 | CaF2 | Ge | MgF2 | N-BK7 | Sapphire | Si | UV Fused Sillca | ZnSe | ZnS |
| Refractive index(nd) | 1.523 | 1.434 | 1.003 | 1.413 | 1.517 | 1.768 | 3.422 | 1.458 | 2.403 | 2.631 |
| Coeffcient of dispersion(Vd) | 58.5 | 95.1 | N/A | 106.2 | 64.2 | 72.2 | N/A | 67.7 | N/A | N/A |
| Density(g/cm3) | 2.55 | 3.18 | 5.33 | 3.18 | 2.46 | 3.97 | 2.33 | 2.20 | 5.27 | 5.27 |
| TCE(μm/m℃) | 8.2 | 18.85 | 6.1 | 13.7 | 7.1 | 5.3 | 2.55 | 0.55 | 7.1 | 7.6 |
| Soften Temperature(℃) | 533 | 800 | 936 | 1255 | 557 | 2000 | 1500 | 1000 | 250 | 1525 |
| Knoop hardness(kg/mm2) | 542 | 158.3 | 780 | 415 | 610 | 2200 | 1150 | 500 | 120 | 120 |
About Our Company ZMKJ Sapphire Process
ZMKJ locates in the city of Shanghai, Which is the best city of China, and our factory is founded
in Wuxi city in 2014.
We specialize in processing a varity of materials into wafers, substrates and custiomized optical
glass parts as like sapphire, sic, quartz.components widely used in electronics, optics, optoelectronics
and many other fields. We also have been working closely with many domestic and oversea universities, research institutions and companies, provide customized products and services for their R&D projects.
It's our vision to maintaining a good relationship of cooperation with our all customers by our good reputatiaons.
3.0 Sapphire Tube sample in detail
4.We can supply professional customized service in time and provide cooperation and support of new product development and technology appliance by other semiconducting material products.
6.0 FAQ –
Q: What you can supply logistics and cost?
(1) We accept DHL, Fedex, TNT, UPS, EMS, SF and etc by FOB delivery.
If you have your own express number, it's great.
Q: How to pay?
50％ deposit ,50％ before delivery byT/T, Paypal, West Union, MoneyGram,
Secure payment and Trade Assurance on and etc..
Q: What's the delivery time?
(1) For the standard products such as ball lens, substrates,windows,
For inventory: the delivery is 5 workdays after order.
For customized products: the delivery is 2 or 3 workweeks after order.
Q: What's the MOQ?
(1) For inventory, the MOQ is 5pcs.
(2) For customized products, the MOQ is 10pcs-30pcs.
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Polished Diameter 10mm Sapphire Al2O3 Optical Tube Images
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