Notice of Corporate Name Change - 

Adamant Namiki Precision Jewel Co., Ltd. will change its name on Jan. 1, 2023.

A special website is available.

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 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  
More information of sapphire (page in the 'Material' category of Precison Jewel Parts) More information of diamond (page in the 'Material' category of Precison Jewel Parts)
MATERIAL PROPERTIES
(Amorphous)
 

Zirconia

Zirconia containing Yttrium 3MOL

Almina

Low temperature Sintering
99.99%

ZTA

Zirconia additives

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 ≤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                  
More information of ceramics (page in the 'Material' category of Precison Jewel Parts) More information of bulk metallic glass (page in the 'Material' category of Precison Jewel Parts)

Contact

*If you cannot find the contact form, please click here.

☎

Mon-Fri 9:00-17:00 JST+81-3-3919-2200

✉

Online Contact