Silver Coil

Silver coil (silver roll) is used in high-frequency electronic circuits, as current leads in cryogenic systems, and in precision sensor technology due to its high electrical conductivity and thermal stability. In research, silver’s surface plasmonic properties enhance performance in nanotechnology, catalysis, and spectroscopy for photonic and optoelectronic applications. Its high reflectivity and oxidation resistance make it essential for laser systems, optical coatings, and high-precision imaging, ensuring longevity and efficiency in scientific and industrial instrumentation.

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Tolerance

Properties

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Tolerances

Coil

Thickness	<0.01mm	±25%
Thickness	0.01mm - 0.05mm	±15%
Thickness	>0.05mm	±10%

Material Properties for Precious Metals

Atomic Properties

Element	Value
Atomic number	47
Crystal structure	Face centred cubic
Electronic structure	Kr 4d¹⁰ 5s¹
Valences shown	1-2,2
Atomic weight( amu )	107.8682
Thermal neutron absorption cross-section( Barns )	63.8
Photo-electric work function( eV )	4.7
Natural isotope distribution( Mass No./% )	107/ 51.83
Natural isotope distribution( Mass No./% )	109/ 48.17
Atomic radius - Goldschmidt( nm )	0.144
Ionisation potential( No./eV )	2/ 21.5
Ionisation potential( No./eV )	1/ 7.58
Ionisation potential( No./eV )	3/ 34.8

Mechanical Properties

Element	Value
Material condition	Hard
Material condition	Soft
Poisson's ratio	0.367
Poisson's ratio	0.367
Bulk modulus( GPa )	103.6
Bulk modulus( GPa )	103.6
Tensile modulus( GPa )	82.7
Tensile modulus( GPa )	82.7
Izod toughness( J m⁻¹ )	5
Hardness - Vickers( kgf mm⁻² )	95
Hardness - Vickers( kgf mm⁻² )	25
Tensile strength( MPa )	330
Tensile strength( MPa )	172

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	1.63@20@20°C
Temperature coefficient( K⁻¹ )	0.0041@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	0.74

Physical Properties

Element	Value
Boiling point( C )	2212
Density( gcm⁻³ )	10.5@20°C

Thermal Properties

Element	Value
Melting point( C )	961.9
Latent heat of evaporation( J g⁻¹ )	2390
Latent heat of fusion( J g⁻¹ )	103
Specific heat( J K⁻¹ kg⁻¹ )	237@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	429@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	19.1@0-100°C

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Silver Coil

Tolerances

Material Properties for Precious Metals