Physical Properties Table

MATERIAL PROPERTIES
(Amorphous)
  SCD
Single
crystal
Diamond
Sapphire
Ruby
Borosilicate
glass

Pyrex
7740
Silica Glass Bulk Metallic Glass

BMG
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 7.2 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

Zirconia containing Yttrium 3MOL
Almina

Low temperature Sintering
99.99%
ZTA

Zirconia 20WL% additives
(purity 99.99%)
Si4N3 SiC AIN Hard Metal

(Ultrafine hard
metal alloy)
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 - - - - -
Mechanical property Bending
Strength
R1601 MPa 1000 700 600 750< 540 310 (4GPa)
Compresive
Strength
- MPa >3000 2350 - - - - 6200
Hardness R1610 Hv 1300 1980 1800 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                  
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