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铝,球体, Al, 3mm 直径
品牌:Goodfellow
纯度含量:95.2%
产地:英国


产品介绍
订货号包装规格
035-910-9750 Piece
958-254-03100 Piece
358-172-17200 Piece

产品参数

Diameter[直径]3mm
Grade[等级]Aluminium Alloy 2017
Purity[纯度]95.2%
Quantity[数量]50 Piece - 200 Piece
Sphericity[球面]5.08μm
Type[类型]Precision Sphere
Typical Analysis(典型分析)
Cr0.05 Percent
Cu4 Percent
Fe0.4 Percent
Mg0.5 Percent
Mn0.5 Percent
Si0.4 Percent
Zn0.2 Percent
Atomic Properties(原子属性)
Atomic number13
Atomic weight ( amu )26.98154
Crystal structureFace Centred Cubic
Electronic structureNe3s²3p¹
Ionisation potential ( No./eV )4 / 120
Ionisation potential ( No./eV )5 / 154
Ionisation potential ( No./eV )6 / 190
Ionisation potential ( No./eV )1 / 5.99
Ionisation potential ( No./eV )3 / 28.4
Ionisation potential ( No./eV )2 / 18.8
Photo-electric work function ( eV )4.20
Thermal neutron absorption cross-section ( Barns )0.2320
Valences shown3
Electrical Properties(电气特性)
Electrical resistivity ( μOhmcm )2.67@20℃
Superconductivity critical temperature ( K )1.1750
Temperature coefficient ( K⁻¹ )0.00450 @0-100℃
Thermal emf against Pt (cold 0C - hot 100C) ( mV )0.42
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Hard )75.2
Bulk modulus ( GPa ) ( Soft )75.2
Hardness - Vickers ( kgf mm⁻² ) ( Hard )35 - 48
Hardness - Vickers ( kgf mm⁻² ) ( Soft )21
Material conditionSoft
Material conditionHard
Poisson's ratio ( Hard )0.345
Poisson's ratio ( Soft )0.345
Tensile modulus ( GPa ) ( Hard )70.60
Tensile modulus ( GPa ) ( Soft )70.60
Tensile strength ( MPa ) ( Hard )130.00 - 195.00
Tensile strength ( MPa ) ( Soft )50.00 - 90.00
Yield strength ( MPa ) ( Hard )110.0 - 170.0
Yield strength ( MPa ) ( Soft )10.0 - 35.0
Physical Properties(物理性质)
Boiling point ( C )2467
Density ( g cm⁻³ )2.700 @20℃
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ )23.500 @0-100℃
Latent heat of evaporation ( J g⁻¹ )10800
Latent heat of fusion ( J g⁻¹ )388.00
Melting point ( C )660.40
Specific heat ( J K⁻¹ kg⁻¹ )900.0 @25℃
Thermal conductivity ( W m⁻¹ K⁻¹ )237.00 @0-100℃

其他参数

公差

直径±5%
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