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Galistan – Material Table – Applications – Price

About Galistan

Galinstan is a eutectic alloy composed of gallium, indium, and tin (hence its name, which is derived from the gallium, indium, and stannum, the Latin name for tin). Galistan melts at −19 °C (−2 °F) and is thus liquid at room temperature.

galistan properties density strength price


Name Galistan
Phase at STP liquid
Density 6440 kg/m3
Ultimate Tensile Strength N/A
Yield Strength N/A
Young’s Modulus of Elasticity N/A
Brinell Hardness N/A
Melting Point -19 °C
Thermal Conductivity 16.5 W/mK
Heat Capacity 296 J/g K
Price 700 $/kg

Composition of Galistan

Galinstan is composed of 68.5% Ga, 21.5% In, and 10.0% Sn (by weight).

69%Gallium in Periodic Table

21%Indium in Periodic Table

10%Tin in Periodic Table

Applications of Galistan

Galistan - Material Table - Applications - Price
Source: wikipedia.org License: CC-BY SA 3.0

Due to the low toxicity and low reactivity of its component metals, in many applications, galinstan has replaced the toxic liquid mercury or the reactive NaK (sodium–potassium alloy). Metals or alloys like galinstan that are liquids at room temperature are often used by overclockers and enthusiasts as a thermal interface for computer hardware cooling, where their higher thermal conductivity compared to thermal pastes and thermal epoxys can allow slightly higher clock speeds and CPU processing power achieved in demonstrations and competitive overclocking.

Mechanical Properties of Galistan

Strength of Galistan

In mechanics of materials, the strength of a material is its ability to withstand an applied load without failure or plastic deformation. Strength of materials basically considers the relationship between the external loads applied to a material and the resulting deformation or change in material dimensions. In designing structures and machines, it is important to consider these factors, in order that the material selected will have adequate strength to resist applied loads or forces and retain its original shape.

Strength of a material is its ability to withstand this applied load without failure or plastic deformation. For tensile stress, the capacity of a material or structure to withstand loads tending to elongate is known as ultimate tensile strength (UTS). Yield strength or yield stress is the material property defined as the stress at which a material begins to deform plastically whereas yield point is the point where nonlinear (elastic + plastic) deformation begins. In case of tensional stress of a uniform bar (stress-strain curve), the Hooke’s law describes behaviour of a bar in the elastic region. The Young’s modulus of elasticity is the elastic modulus for tensile and compressive stress in the linear elasticity regime of a uniaxial deformation and is usually assessed by tensile tests.

See also: Strength of Materials

Ultimate Tensile Strength of Galistan

Ultimate tensile strength of Galistan is N/A.

Yield Strength of Galistan

Yield strength of Galistan is N/A.

Modulus of Elasticity of Galistan

The Young’s modulus of elasticity of Galistan is N/A.

Hardness of Galistan

In materials science, hardness is the ability to withstand surface indentation (localized plastic deformation) and scratchingBrinell hardness test is one of indentation hardness tests, that has been developed for hardness testing. In Brinell tests, a hard, spherical indenter is forced under a specific load into the surface of the metal to be tested.

The Brinell hardness number (HB) is the load divided by the surface area of the indentation. The diameter of the impression is measured with a microscope with a superimposed scale. The Brinell hardness number is computed from the equation:

brinell hardness number - definition

Brinell hardness of Galistan is approximately  N/A.

See also: Hardness of Materials

Strength of Materials

Material Table - Strength of Materials

Elasticity of Materials

Material Table - Elasticity of Materials

Hardness of Materials

Material Table - Hardness of Materials  

Thermal Properties of Galistan

Galistan – Melting Point

Melting point of Galistan is -19 °C.

Note that, these points are associated with the standard atmospheric pressure. In general, melting is a phase change of a substance from the solid to the liquid phase. The melting point of a substance is the temperature at which this phase change occurs. The melting point also defines a condition in which the solid and liquid can exist in equilibrium. For various chemical compounds and alloys, it is difficult to define the melting point, since they are usually a mixture of various chemical elements.

Galistan – Thermal Conductivity

Thermal conductivity of Galistan is 16.5 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.

The thermal conductivity of most liquids and solids varies with temperature. For vapors, it also depends upon pressure. In general:

thermal conductivity - definition

Most materials are very nearly homogeneous, therefore we can usually write k = k (T). Similar definitions are associated with thermal conductivities in the y- and z-directions (ky, kz), but for an isotropic material the thermal conductivity is independent of the direction of transfer, kx = ky = kz = k.

Galistan – Specific Heat

Specific heat of Galistan is 296 J/g K.

Specific heat, or specific heat capacity, is a property related to internal energy that is very important in thermodynamics. The intensive properties cv and cp are defined for pure, simple compressible substances as partial derivatives of the internal energy u(T, v) and enthalpy h(T, p), respectively:

where the subscripts v and p denote the variables held fixed during differentiation. The properties cv and cp are referred to as specific heats (or heat capacities) because under certain special conditions they relate the temperature change of a system to the amount of energy added by heat transfer. Their SI units are J/kg K or J/mol K.

Melting Point of Materials

Material Table - Melting Point

Thermal Conductivity of Materials

Material Table - Thermal Conductivity

Heat Capacity of Materials

Material Table - Heat Capacity

Properties and prices of other materials