| MATERIAL PROPERTIES (Amorphous) |
SCD |
Sapphire Ruby |
Borosilicate glass Pyrex 7740 |
Silica Glass |
Bulk Metallic Glass |
|||
|---|---|---|---|---|---|---|---|---|
| JIS | Dimension | |||||||
| Bulk Density | C2141 | g/cm3 | 3.52 | 3.97 | 2.2 | 2.2 | 6.8 | |
| Grain Size | - | μm | - | - | - | - | - | |
| Mechanical property | Bending Strength | R1601 | MPa | - | 690(ac) | 48 | 60 | - |
| Compresive Strength |
- | MPa | 6-11 | 2940 | - | 1.1 | 1810 | |
| Hardness | R1610 | HV | 7000 | 2295(a) | - | - | 520 | |
| Young's Modulus |
R1602 | GPa | 1050 | 470 | 60 | 72 | 81 | |
| Poisson's ratio |
- | 0.1 | - | 0.2 | 0.17 | - | ||
| Fracture Toughness |
R1607 | MPa・m1/2 | 5.3-7.0 | - | - | - | - | |
| Electrical property | Volume Resistivity |
R2141 | Ω・cm | 1018 | >1014 | 8.1 | >1012 | - |
| permittivity | - | 5.02907E-11 | Parallel to C 11.5 Perpendicular to C 9.3 |
4.6 | 3.75 | - | ||
| relative permittivity |
- | - | 5.68 | Parallel to C 11.5 Perpendicular to C 9.3 |
1 | - | - | |
| Thermal property | CET | R1618 | x10-6/°C | 0.8 | Parallel to C 7.7 | 3.25 | 0.55 | 10.9 |
| Thermal conductivity | R1611 | W/m・K | 900 - 2000 |
41 | 1.2 | 1.3 | - | |
| Thermal Shock Resistance |
- | ΔT°C | - | - | 48 | - | - | |
| Specific Heat Capacity |
R1611 | J/g・K | 520 | 0.75 | 0.8-1 | 0.71 | - | |
| Melting Point | - | °C | 3550 | 2050 | Softening point 820°C |
1695 - 1720 |
890 | |
| Refractive index | 1.768 (Nd=5893A) 1.760 (Ext.-ordinary) |
1.458 | ||||||
| MATERIAL PROPERTIES (Amorphous) |
Zirconia |
Almina |
ZTA |
Si4N3 |
SiC |
AIN |
Hard Metal |
|||
|---|---|---|---|---|---|---|---|---|---|---|
| JIS | Dimension | |||||||||
| Bulk Density | C2141 | g/cm2 | 6.05 | 3.98 | 4.26 | 3.20 | 3.20 | 3.4 | (14) | |
| Grain Size | - | μm | 0.5 | 1.2 | ≤0.5μm | - | - | - | - | |
| Mechanical property | Bending Strength |
R1601 | MPa | 1000 | 700 | 600 | 750< | 540 | 310 | (4GPa) |
| Compresive Strength |
- | MPa | >3000 | 2350 | - | - | - | - | 6200 | |
| Hardness | R1610 | HV | 1300 | 1980 | 1900 | 1418 | 2244 | 1061 | 1700 | |
| Young's Modulus |
R1602 | GPa | 200 | 370 | 365 | 290 | 430 | 320 | 560 | |
| Poisson's ratio |
- | 0.31 | 0.23 | 0.25 | 0.28 | 0.16 | 0.24 | 0.23 | ||
| Fracture Toughness |
R1607 | MPa・m1/2 | 4.1 | 3.2 | 4.3 | 5∼7 | 2∼3 | - | 6.3 | |
| Electrical property | Volume Resistivity |
R2141 | Ω・cm | 1018 | 1015 | 2.47x1014 | >1014 | 105 | >1014 | 10-5 |
| permittivity | - | 33 | 10 | 12 | 9.6 | - | 9 | - | ||
| relative permittivity |
- | - | - | - | - | - | - | - | - | |
| Thermal property | CET | R1618 | x10-6/°C | 8(RT) 10(1000°C) |
7.8 | 5.6 (RT∼100) 7.7 (RT∼500) |
2.4 | 3.7 | 4.6 | 5.5 |
| Thermal conductivity |
R1611 | W/m・K | 3 | 35 | - | 25 | 60 | 150 | 67 | |
| Thermal Shock Resistance |
- | ΔT°C | 360 | 300 | - | 650 | 450 | 400 | 400 | |
| Specific Heat Capacity |
R1611 | J/g・K | 0.46 | 0.78 | - | 0.64 | 0.67 | 0.71 | - | |
| Melting Point | - | °C | 2700 | 2050 | - | 2600 | 2730 | 2k <resolution |
1500(Co) | |
| Refractive index | ||||||||||
