BC1691 Magnesium Boride Powder, MgB2 Powder (CAS No. 12007-25-9)

Catalog No. BC1691
Material MgB2
CAS Number 12007-25-9
Appearance Light Gray Powder / Granule / Lump
Density 4.52 g/cm3
Melting Point 2970 ℃

Magnesium boride powder is an inexpensive and simple superconductor with the formula MgB2. Stanford Advanced Materials (SAM) is a leading supplier of magnesium boride powder in a variety of dimensions.

Related products: HfB2 Powder, Boron Nitride, Boron Carbide

 

Magnesium Boride Powder Description 

Magnesium boride powder is an inexpensive and simple superconductor. Its superconductivity was announced in the journal Nature in March 2001. Its critical temperature (Tc) of 39 K (-234 °C; -389 °F) is the highest amongst conventional superconductors. This material was first synthesized and its structure confirmed in 1953, but its superconducting properties were not discovered until 2001. The discovery caused great excitement. Though generally believed to be a conventional (phonon-mediated) superconductor, it is a rather unusual one. Its electronic structure is such that there exist two types of electrons at the Fermi level with widely differing behaviors, one of them (sigma-bonding) being much more strongly superconducting than the other (pi-bonding). This is at odds with usual theories of phonon-mediated superconductivity which assume that all electrons behave in the same manner. The theoretical understanding of the properties of MgB2 has almost been achieved with two energy gaps. In 2001 it was regarded as behaving more like a low-Tc metallic than a high-Tc cuprate superconductor.

Magnesium Boride Powder Specifications

Molecular Weight (g/mol.)

 45.93 

Density (g/cm3)

 4.52 

Melting Point (°C)

 2970

Tc (°K)

 ~ 37 

Poisson's Ratio

 0.1 - 0.15

Thermal conductivity (W/m.K)

 25

Knoop Hardness

 1800

Ionic Formula

 Mg1.68+B0.84-2  

EINECS-No.

 2345012

Magnesium Boride Powder Packing

25KG per drum or as required by the customer
Our magnesium boride powder is clearly tagged and labeled externally to ensure efficient identification and quality control. Great care is taken to avoid any damage which might be caused during storage or transportation.

 Package Packing

 

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