Physical Properties of Crystals: Their Representation by Tensors and Matrices |
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Page 195
... heat flow and , if a unit cross - section is taken perpendicular to h , the rate of flow of heat across it is h . In an isotropic solid the heat conduction obeys the law h = -k grad T , ( 1 ) where k is a positive coefficient , the thermal ...
... heat flow and , if a unit cross - section is taken perpendicular to h , the rate of flow of heat across it is h . In an isotropic solid the heat conduction obeys the law h = -k grad T , ( 1 ) where k is a positive coefficient , the thermal ...
Page 199
... heat flow must be parallel to its axis . The -grad T a JTH k- -grad T b C -grad T FIG . 11.2 . Heat flow down a long rod . The directions of -grad T and h in relation to ( a ) the rod , ( b ) the resistivity ellipsoid , and ( c ) the ...
... heat flow must be parallel to its axis . The -grad T a JTH k- -grad T b C -grad T FIG . 11.2 . Heat flow down a long rod . The directions of -grad T and h in relation to ( a ) the rod , ( b ) the resistivity ellipsoid , and ( c ) the ...
Page 202
... heat - flow problem in an isotropic medium of conductivity ( k1 ką ką ) . We form a picture of the solution by imagining the sources , the boundaries , the isothermals , and the lines of heat flow as drawn in space . Now distort the ...
... heat - flow problem in an isotropic medium of conductivity ( k1 ką ką ) . We form a picture of the solution by imagining the sources , the boundaries , the isothermals , and the lines of heat flow as drawn in space . Now distort the ...
Contents
THE GROUNDWORK OF CRYSTAL PHYSICS | 3 |
3 | 29 |
EQUILIBRIUM PROPERTIES | 51 |
23 other sections not shown
Common terms and phrases
angle anisotropic applied axial B₁ biaxial birefringence centre of symmetry Chapter coefficients components conductivity constant crystal classes crystal properties crystal symmetry cube cubic crystals D₁ defined denoted diad axis dielectric dijk direction cosines displacement electric field ellipsoid equal equation example expression follows forces given grad H₁ H₂ heat flow Hence hexagonal indicatrix isothermal isotropic k₁ magnetic magnitude matrix notation measured moduli monoclinic number of independent Onsager's Principle optic axis optical activity orientation orthorhombic Ox₁ P₁ parallel Peltier permittivity perpendicular photoelastic photoelastic effect piezoelectric effect plane plate polarization positive principal axes produced pyroelectric effect quadric radius vector referred refractive index relation representation quadric represents right-handed rotation S₁ scalar second-rank tensor shear shown strain stress symmetry elements Table temperature gradient thermal expansion thermodynamics thermoelectric effects Thomson heat tion transformation law triclinic trigonal uniaxial values wave normal x₁ zero әт