SILVER

PROPERTY	@ 300K	UNITS	REFERENCES
Density	10.5	G/cm³	Ag1 Ag2 Ag3
Specific Heat	0.0560	Cal/g-K	Ag4 Ag5 Ag6
Thermal Conductivity	1.02	Cal/cm-s-K	Ag7 Ag8 Ag9
Thermal Exp Coef	19.0x10^-6	1/K	Ag10 Ag11 Ag12
Melting Point	1235.08	K	Ag13
Resistivity 1	1.628x10^-6	Ohm-cm	Ag14 Ag15 Ag16
TCR (218K to 398K) 1	3730	Ppm/K	Ag14 Ag15 Ag16
Young’s Modulus	1.18x10⁷	psi	Ag17 Ag18 Ag19
Poisson’s Ratio	0.369	-----	Ag17 Ag18 Ag19
Yield Strength	1000	psi	Ag20 Ag21 Ag22
Ult Tensile strength	21000	psi	Ag20 Ag21 Ag22
Elongation at Break	50	%	Ag20 Ag21 Ag22
Hardness	25	Brinell	Ag23 Ag24 Ag25

1: The resistivity and TCR of epitaxial grown silver forms on rock salt >1700 angstroms thick are nearly equal to values for the bulk material above 200K. [Ag27]

Mechanical properties listed are for fully annealed, bulk material. 50% reduction producing 0.032-inch sheet will increase yield strength to 44,300 psi, increase tensile strength to 54,300 psi and reduce the elongation (2 inch gauge length) to 2.4% [Ag22]. Polycrystalline silver films have demonstrated tensile strengths greater than 90 ksi with elongations of 0.7%. [Ag26] Heating cold worked material into the temperature into the temperature range of 400 to 600K will cause recovery and recrystallization erasing the effects of cold work.

Engineering Materials

Revised: April 17, 2004