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钆,块, Gd, 25mm Max. Lump Size, 3N
钆,块, Gd, 25mm Max. Lump Size, 3N图片
品牌: Goodfellow
纯度含量: 99.9%
产地: 英国
索取资料及报价
品牌:Goodfellow
纯度含量:99.9%
产地:英国
产品介绍

Supplied in 100g bottles only.

订货号包装规格
Weight
494-025-9320g
751-926-6650g
283-049-51100g
385-052-36150g

产品参数

Maximum Lump Size[]25mm
Purity[纯度]99.9%
Weight[重量]20g - 150g
Atomic Properties(原子属性)
Atomic number64
Atomic weight ( amu )157.25000
Crystal structureHexagonal Close Packed
Electronic structureXe4f⁷5d¹6s²
Ionisation potential ( No./eV )2 / 12.1
Ionisation potential ( No./eV )1 / 6.14
Natural isotope distribution ( Mass No./% )160 / 21.8
Natural isotope distribution ( Mass No./% )155 / 14.8
Natural isotope distribution ( Mass No./% )157 / 15.7
Natural isotope distribution ( Mass No./% )152 / 0.2
Natural isotope distribution ( Mass No./% )158 / 24.8
Natural isotope distribution ( Mass No./% )156 / 20.5
Natural isotope distribution ( Mass No./% )154 / 2.2
Photo-electric work function ( eV )3.10
Thermal neutron absorption cross-section ( Barns )49000.0000
Valences shown3
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Polycrystalline )39.1
Hardness - Vickers ( kgf mm⁻² ) ( Polycrystalline )55
Material conditionPolycrystalline
Poisson's ratio ( Polycrystalline )0.260
Tensile modulus ( GPa ) ( Polycrystalline )56.20
Tensile strength ( MPa ) ( Polycrystalline )193.00
Yield strength ( MPa ) ( Polycrystalline )179.0
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ )6.400 @0-100℃
Latent heat of evaporation ( J g⁻¹ )1920
Latent heat of fusion ( J g⁻¹ )98.70
Melting point ( C )1313.00
Specific heat ( J K⁻¹ kg⁻¹ )230.0 @25℃
Thermal conductivity ( W m⁻¹ K⁻¹ )10.50 @0-100℃
Physical Properties(物理性质)
Boiling point ( C )3266
Density ( g cm⁻³ )7.895 @25℃
Electrical Properties(电气特性)
Electrical resistivity ( μOhmcm )134@20℃
Temperature coefficient ( K⁻¹ )0.00176 @0-100℃
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