Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. The name samarium is after the mineral samarskite from which it was isolated. Although classified as a rare earth element, samarium is the 40th most abundant element in the Earth’s crust and is more common than such metals as tin. In nuclear industry, especially natural and artificial samarium 149 has an important impact on the operation of a nuclear reactor. Samarium 149 has a very large neutron capture cross-section (about 42,000 barns). Since natural samarium contains about 14% of 149Sm, it can be used as an absorbing material in control rods.
Thermal Properties of Samarium
Samarium – Melting Point and Boiling Point
Melting point of Samarium is 1074°C.
Boiling point of Samarium is 1900°C.
Note that, these points are associated with the standard atmospheric pressure.
Samarium – Thermal Conductivity
Thermal conductivity of Samarium is 13 W/(m·K).
The heat transfer characteristics of a solid material are measured by a property called the thermal conductivity, k (or λ), measured in W/m.K. It is a measure of a substance’s ability to transfer heat through a material by conduction. Note that Fourier’s law applies for all matter, regardless of its state (solid, liquid, or gas), therefore, it is also defined for liquids and gases.
Coefficient of Thermal Expansion of Samarium
Linear thermal expansion coefficient of Samarium is 12.7 µm/(m·K)
Thermal expansion is generally the tendency of matter to change its dimensions in response to a change in temperature. It is usually expressed as a fractional change in length or volume per unit temperature change.
See also: Mechanical Properties of Samarium
|Melting Point||1074 °C|
|Boiling Point||1900 °C|
|Thermal Conductivity||13 W/mK|
|Thermal Expansion Coefficient||12.7 µm/mK|
Properties of other elements