PHYSICAL PROPERTIES OF MATERIALS

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Thermal Conductivity Thermal conduction - transfer of thermal energy within a material from molecule to molecule by purely thermal motions; no transfer of mass Thermal conductivity of a material = capability to transfer heat through itself by this physical mechanism •Measured by coefficient of thermal conductivity k. Units: J/s mm C (Btu/in hr F) •Coefficient of thermal conductivity is generally high in metals, low in ceramics and plastics ©2002 John Wiley & Sons, Inc. M. P. Groover, “Fundamentals of Modern Manufacturing 2/e”
Thermal Diffusivity The ratio of thermal conductivity to volumetric specific heat is frequently encountered in heat transfer analysis K k C ©2002 John Wiley & Sons, Inc. M. P. Groover, “Fundamentals of Modern Manufacturing 2/e”
Page 1 and 2: PHYSICAL PROPERTIES OF MATERIALS
Page 3 and 4: Physical Properties in Manufacturin
Page 5 and 6: Density Defined Weight per unit vol
Page 7 and 8: Thermal Expansion •Density of a m
Page 9 and 10: Thermal Expansion in Manufacturing
Page 11 and 12: Melting of Metal Alloys •Unlike p
Page 13 and 14: Figure 4.1 - Changes in volume per
Page 15 and 16: Thermal Properties •Thermal expan
Page 17: Volumetric Specific Heat The quanti
Page 21 and 22: Mass Diffusion Movement of atoms or
Page 23 and 24: Mass Diffusion in Manufacturing •
Page 25 and 26: Electrical Properties •Movement o
Page 27 and 28: Resistivity Property that defines a
Page 29 and 30: Engineering Materials and Electrica
Page 31 and 32: Electrical Properties in Manufactur
Page 33 and 34: Terms in Electrochemical Processes
Page 35 and 36: Figure 4.3 -Example of electrolysis
Page 37 and 38: Chemical Reactions in Decomposition

PHYSICAL PROPERTIES OF MATERIALS

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