Electron microscopy
  
Relationship between Bond Energy and Melting Point
- Practical Electron Microscopy and Database -
- An Online Book -
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This book (Practical Electron Microscopy and Database) is a reference for TEM and SEM students, operators, engineers, technicians, managers, and researchers.
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The melting point of a material is one of the characteristics of its bond strength (bond energy). In many cases, higher bond energy reflects higher melting point. Table1821 lists the relationship between bond energies and melting points of some materials.

Table 1821. Relationship between bond energy and melting point.

Material Bond energy (eV/bond) Melting point (°C)
Ionic
CaCl 6.747 646
NaCl 7.96 801
LiF 10.45 870
CuF2 26.85 1360
Al2O3 157.46 3500
Covalent
Ge 3.26 958
GaAs 3.26 1238
Si 3.66
 1420
SiC 12.31
 2600
Diamond 7.4 3550
Metallic
Na 1.13 98
Al 3.22
 660
Cu 3.52
 1083
Fe 4.22
 1535
W 8.75
 3370
Van der Waals
Ne 0.0259 -248.7
Hydrogen bonding
H2 0 0.518 0

 

 

 
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