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Hafnium

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Aluminium

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Hafnium

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Aluminium

Physical Properties of Hafnium and Aluminium

Hafnium Metal

Hafnium

Aluminium Metal

Aluminium

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1 Physical

1.1 Melting Point

2,150.00 °C660.37 °C

27 3410

1.2 Boiling Point

5,400.00 °C2,467.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Gray

Silvery Gray

1.3.3 Luster

Metallic

Metallic

1.4 Hardness

1.4.1 Mohs Hardness

5.502.75

0.2 8.5

1.4.2 Brinell Hardness

1,450.00 MPa160.00 MPa

0.14 3490

1.4.3 Vickers Hardness

1,520.00 MPa160.00 MPa

121 3430

1.5 Speed of Sound

3,010.00 m/s5,000.00 m/s

818 16200

1.6 Optical Properties

1.6.1 Refractive Index

NANA

1.000933 1.7229

1.6.2 Reflectivity

NA71.00 %

58 97

1.7 Allotropes

✔ ✘

✔ ✘

1.7.1 α Allotropes

Not Available

Not Available

1.7.2 β Allotropes

Not Available

Not Available

1.7.3 γ Allotropes

Not Available

Not Available

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