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Physical Properties of Zirconium and Hafnium


Physical Properties of Hafnium and Zirconium


Physical Properties

Melting Point
1,852.00 °C   
15
2,150.00 °C   
10

Boiling Point
4,377.00 °C   
11
5,400.00 °C   
5

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Gray   

Luster
Lustrous   
Metallic   

Hardness
  
  

Mohs Hardness
5.00   
8
5.50   
7

Brinell Hardness
638.00 MPa   
19
1,450.00 MPa   
6

Vickers Hardness
820.00 MPa   
15
1,520.00 MPa   
5

Speed of Sound
3,800.00 m/s   
20
3,010.00 m/s   
27

Optical Properties
  
  

Allotropes
No   
No   

α Allotropes
Not Available   
Not Available   

β Allotropes
Not Available   
Not Available   

γ Allotropes
Not Available   
Not Available   

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