TechZones >> History of Man Made Diamond >> Properties of diamond

  Properties of diamond

 

 

 

 

 

  •                                 ·              HARDNESS
  •                                 ·              RATE OF WEAR
  •                                 ·              REFRACTIVE INDEX
  •                                 ·              OTHER PROPERTIES

 

 

 

 

 

 

 

 

 

 

 

 KNOOP INDENTATION HARDNESS WITH MOHS' EQUAL

INTERVAL SCRATCH HARDNESS 

 

 

RATE OF WEAR OF DIAMOND AND SOME IMITATIONS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REFRACTIVE INDEX OF DIAMOND FOR DIFFERENT WAVELENGTHS OF LIGHT

 

PROPERTIES
VALUE
Density
Mohs Scratch Hardness
Knoop Scale
Elastic Modulus
Bulk Modulus
Tense Strength
Compress Strength
3.52g/cm3
10
57-104Gpa
10.76×102Gpa
5.42×102Gpa
1.3-2.5Gpa
8.68-16.53Gpa

 

 

PROPERTIES
VALUE
Thermal Expansion Coefficient
Thermal Conductivity
Resistivity
Refraction Index
0.9×10-6
20W/(cm·K)
106W·cm
2.42

 

  *** Hardness in different lattice planes:  (100)<(110)<(111)

  *** Graphitization over 6600C in oxygen, over