Customization: | Available |
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Certification: | CE, ISO, BV |
Application: | Rubber, Plastic, Chemical, Construction, Metallurgy, Ceramic, Casting, Glass, Astronomy, Medicine, Biology, Communication, Milit |
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Softening Point | 1585 ºC (107.6 poises) |
Annealing Point | 1042 ºC (1013 poises) |
Strain Point | 893 ºC (1014.5 poises) |
Thermal Conductivity | 1.30 W/m K |
Thermal Diffusivity | 0.0075 cm2/s |
Average C.T.E. | 0.52 ppm/K 5 ºC-35 ºC 0.57 ppm/K 0 ºC-200 ºC 0.48 ppm/K -100 ºC-200 ºC |
Elastic (Young's) Modulus | 72.7 GPa |
Shear Modulus | 31.4 GPa |
Average Modulus of Rupture, abraded | 52.4 MPa |
Bulk Modulus | 35.4 GPa |
Poisson's Ratio | 0.16 |
Density | 2.201 g/cm3 |
Knoop Hardness (100 g load) | 522 kg/mm2 |
Solution | Time | Weight Loss [mg/cm2] | |
5% HCL by weight | @95 ºC | 24 h | < 0.010 |
5% NaOH | @95 ºC | 6 h | 0.453 |
0.02N NA2CO3 | @95 ºC | 6 h | 0.065 |
0.02N H2SO4 | @95 ºC | 24 h | < 0.010 |
Deionized H2O | @95 ºC | 24 h | 0.015 |
10% HF by weight | @25 ºC | 20 m | 0.230 |
10% NH4F*HF by weight | @25 ºC | 20 m | 0.220 |
Applying Fields: | Application of microlithography Lithography lens, Photomask substrate Deep ultraviolet laser element Optical standard parts Excimer laser optics Lithographic optics Beam transmission element Light guide Laser fusion Application of various aerospace technologies |
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