Materials Home
Pure Elements
Periodic Table
Element List
  by Name
  by Symbol
  by Atomic Number
  by Atomic Weight
Element Information
Resources
Bibliography
Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

Wind Systems

Towers, turbines, gearboxes; processes for shaping and finishing component parts.

Power Transmission

Gear drives, bearings, motors, clutches, couplings, machine controls, sensors and components.

Desktop Engineering

Design, simulation, test, prototyping and high performance computing.

more free magazines
Thulium
69
Tm
168.934
Atomic Number 69
Atomic Weight 168.934
Electron Config. 2-2-6-2-6-10-2-6-10-13-2-6-0-0-2
Electron configuration order: 1s-2s-2p-3s-3p-3d-4s-4p-4d-4f-5s-5p-5d-5f-6s-6p-6d-7s

Mechanical Properties Conditions
Phase Temp. (K) Pressure (Pa)
Density 9320 kg/m3 Solid  298.15 
Poisson Ratio 0.21 Solid     
Thermal Expansion Coefficient 1.330 /K Solid  298.15  

Electrical Properties Conditions
Temp. (K) Note
Electrical Resistivity 7.900 W-m 298.15  

Thermal Properties Conditions
Temp. (K) Pressure (Pa)
Melting Temperature 1818.15 K   101325 
Boiling Temperature 2219.15 K   101325 
Critical Temperature 6450 K    
Fusion Enthalpy 99.7 J/g 101325 
Heat Capacity 160 J/kg-K 298.149993896 100000 
Thermal Conductivity 16.9 W/m-K 300 101325 
 
Glossary