Made to order for delivery in about 4-5 weeks. Other sizes also available.

订货号	包装规格
Disc
240-606-64	50mm
075-829-67	75mm

半岛bd体育手机客户端 参数

Diameter[直径]	50mm - 75mm
Purity[纯度]	99.9%
Thickness[厚度]	3mm
Atomic Properties(原子属性)
Atomic number	58
Atomic weight ( amu )	140.12000
Crystal structure	Face Centred Cubic
Electronic structure	Xe4f?6s?
Ionisation potential ( No./eV )	2 / 10.85
Ionisation potential ( No./eV )	1 / 5.47
Ionisation potential ( No./eV )	3 / 20.20
Ionisation potential ( No./eV )	4 / 36.72
Natural isotope distribution ( Mass No./% )	136 / 0.2
Natural isotope distribution ( Mass No./% )	140 / 88.4
Natural isotope distribution ( Mass No./% )	142 / 11.1
Natural isotope distribution ( Mass No./% )	138 / 0.3
Photo-electric work function ( eV )	2.90
Thermal neutron absorption cross-section ( Barns )	0.7300
Valences shown	3 , 4
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Cast )	24.4
Bulk modulus ( GPa ) ( Polycrystalline )	24.4
Hardness - Vickers ( kgf mm?? ) ( Cast )	25 - 30
Material condition	Polycrystalline
Material condition	Cast
Poisson's ratio ( Cast )	0.248
Poisson's ratio ( Polycrystalline )	0.248
Tensile modulus ( GPa ) ( Cast )	33.50
Tensile modulus ( GPa ) ( Polycrystalline )	33.50
Tensile strength ( MPa ) ( Cast )	102.00
Yield strength ( MPa ) ( Cast )	91.0
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10?? K?? )	8.000 @0-100℃
Latent heat of evaporation ( J g?? )	2680
Latent heat of fusion ( J g?? )	37.30
Melting point ( C )	799.00
Specific heat ( J K?? kg?? )	205.0 @25℃
Thermal conductivity ( W m?? K?? )	11.30 @0-100℃
Physical Properties(物理性质)
Boiling point ( C )	3426
Density ( g cm?? )	6.750 @20℃
Electrical Properties(电气特性)
Electrical resistivity ( μOhmcm )	85.4@20℃
Temperature coefficient ( K?? )	0.00870 @0-100℃
Thermal emf against Pt (cold 0C - hot 100C) ( mV )	1.14

其他参数

公差

直径		±0.5mm
厚度		±0.5mm

易燃

与火焰接触后点燃的化学品，或与水接触后逸出高度易燃气体的化学品。