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	PRODUCT DATA of Silicon

Material

Silicon

Chemical Composition

100Si

	EXPERIENCE IN PRACTICE

Equivalent Designations

Si

	PHYSICAL PROPERTIES

Atomic Number

14

Atomic Weight

28.1 amu

Work Function

4.2 eV

Crystal Structure

Diamond

Specific Gravity

2.33

	ELASTIC PROPERTIES

Tensile Modulus

112 GPa

Bulk Modulus

100 GPa

Poisson Ratio

0.42

	ELECTRICAL PROPERTIES

Electrical Volume Resistivity

0.000023 ohm.m

Dielectric Constant

11.8

	THERMAL PROPERTIES

Temperature Range

1350 °C(maximum)

Thermal Conductivity

156 W/m.K

Thermal Expansion Coefficient

4.7 to 7.6 μstrain/°C

Specific Heat

0.628 J/g.K

Melting Range

1410 °C

	OPTICAL PROPERTIES

Refractive Index

1.54

	RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY

EMF vs SCE

-0.24 V Remark: Measured in 3.5% NaCl solution Data Quality: Design Data