MatWeb - Material Property Data Advertise with MatWeb!     Register Now
Data sheets for over 180,000 metals, plastics, ceramics, and composites.
MatWeb - Material Property Data HOME  •   SEARCH  •   TOOLS  •   SUPPLIERS  •   FOLDERS  •   ABOUT US  •   FAQ  •   LOG IN    
Recently Viewed Materials (most recent at top)  

Login to see your most recently viewed materials here.

Or if you don't have an account with us yet, then click here to register.

  Searches:   Advanced  | Category  | Property  | Metals  | Trade Name  | Manufacturer  | Recently Viewed Materials
  

Rulon Bearings

(Viewing data as-entered. Click here to return)
Germanium, Ge
Categories: Metal; Nonferrous Metal; Other Engineering Material; Semiconductor; Pure Element

Vendors: Click here to view all available suppliers for this material.

Please click here if you are a supplier and would like information on how to add your listing to this material.

 
Physical PropertiesOriginal ValueComments
Density 5.3234 g/cc
a Lattice Constant 5.65754 Å
Volume Compressibility, 10^-10 m²/N 0.768
 
Chemical PropertiesOriginal ValueComments
Atomic Mass 72.611995
Atomic Number 32
Thermal Neutron Cross Section 2.5 barns/atom
X-ray Absorption Edge 1.116 ÅK
 8.729 ÅLI
 9.9646 ÅLII
 10.2277 ÅLIII
Electronegativity 2.01Pauling
Ionic Radius 0.530 ÅCrystal Ionic Radius for Valence +4
 0.730 ÅCrystal Ionic Radius for Valence +2
 2.72 ÅCrystal Ionic Radius for Valence -4
 
Mechanical PropertiesOriginal ValueComments
Knoop Microhardness 7644N/mm² Microhardness
Modulus of Elasticity 130 GPaAverage of three axes
Poissons Ratio 0.30Calculated
Shear Modulus 50.0 GPaAverage of three axes.
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.0000500 ohm-cm
Magnetic Susceptibility -1.20e-7Atomic (cgs)
Critical Superconducting Temperature 5.35 Kat 11.5 GPa pressure.
Dielectric Constant 16
Band Gap 0.67 eV
Electron Mobility, cm²/V-s 3800
Hole Mobility, cm²/V-s 1820
 
Thermal PropertiesOriginal ValueComments
Heat of Fusion 478 J/g
Heat of Vaporization 3345 J/g
CTE, linear 6.10 µm/m-°C
@Temperature 20.0 °C
Specific Heat Capacity 0.3219 J/g-°C
Thermal Conductivity 64.0 W/m-K
Melting Point 937.4 °C
Boiling Point 2833 °C
Heat of Formation 291 kJ/mol
Debye Temperature 101 °C
 
Optical PropertiesOriginal ValueComments
Refractive Index 3.99
 
Component Elements PropertiesOriginal ValueComments
Germanium, Ge 100 %
 
Descriptive Properties
CAS Number7440-56-4
Crystal StructureCubicDiamond Structure - Space Group Fd3m

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

Users viewing this material also viewed the following:
Silicon, Si
Aluminum, Al
Silver, Ag
Gold, Au
Mateck Germanium (Ge)

AMEGe00 / 40

Free Trade Publications, Click Here!
Free Trade Publications, Click Here!

Please read our License Agreement regarding materials data and our Privacy Policy. Questions or comments about MatWeb? Please contact us at info@matweb.com. We appreciate your input.

The contents of this web site, the MatWeb logo, and "MatWeb" are Copyright 1996-2025 by MatWeb, LLC. MatWeb is intended for personal, non-commercial use. The contents, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from MatWeb, LLC.