MakeItFrom.com
Menu (ESC)

CVD Diamond vs. Machinable Glass-ceramic

CVD diamond belongs to the non-oxide engineering ceramics classification, while machinable glass-ceramic belongs to the glass and glass-ceramics. There are 17 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is CVD diamond and the bottom bar is machinable glass-ceramic.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1050
67
Fracture Toughness, MPa-m1/2 5.5
2.5
Poisson's Ratio 0.1
0.29
Tensile Strength: Ultimate (UTS), MPa 750
84

Thermal Properties

Specific Heat Capacity, J/kg-K 500
790
Thermal Conductivity, W/m-K 1900
1.2
Thermal Expansion, µm/m-K 1.0
21

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 MHz 5.7
6.4
Electrical Dissipation At 1 MHz 0.00020
0.0050
Electrical Resistivity Order of Magnitude, 10x Ω-m 13
14

Otherwise Unclassified Properties

Density, g/cm3 3.5
2.7

Common Calculations

Stiffness to Weight: Axial, points 170
14
Stiffness to Weight: Bending, points 96
51
Strength to Weight: Axial, points 59
8.8
Strength to Weight: Bending, points 52
16
Thermal Diffusivity, mm2/s 1080
0.56
Thermal Shock Resistance, points 51
4.3