The Science and Design of Engineering Materials |
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Page 453
... band corresponding to the 2s level does not overlap the energy band corresponding to the 2p level . There is an energy gap , also known as a band gap , separating the two energy bands . The magnitude of the gap is labeled E ,. In ...
... band corresponding to the 2s level does not overlap the energy band corresponding to the 2p level . There is an energy gap , also known as a band gap , separating the two energy bands . The magnitude of the gap is labeled E ,. In ...
Page 460
... band of a band gap material increases exponen- tially with temperature . This is in contrast to materials with partially filled valence bands for which N , is independent of temperature . 10.2.5 Conductors , Semiconductors , and ...
... band of a band gap material increases exponen- tially with temperature . This is in contrast to materials with partially filled valence bands for which N , is independent of temperature . 10.2.5 Conductors , Semiconductors , and ...
Page 490
James P. Schaffer. and the first energy band above the valence band , known as the conduction band . The term energy gap , or band gap , refers to the magnitude of the forbidden energy range between the valence and conduction bands . For ...
James P. Schaffer. and the first energy band above the valence band , known as the conduction band . The term energy gap , or band gap , refers to the magnitude of the forbidden energy range between the valence and conduction bands . For ...
Contents
Materials Science and Engineering | 2 |
CHAPTER | 4 |
CHAPTER | 12 |
Copyright | |
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alloy aluminum anion applications atoms band band gap BCC structure bond-energy curve brittle Calculate carbon cation ceramics chain Chapter charge carriers classes of materials close-packed coefficient component composition compound conductivity containing corrosion covalent bonds crack crystal structure crystalline cubic decreases defects density determined dielectric diffusion dipole direction discussed dislocation ductility elastic elastic modulus electrical electronegative energy engineering Equation equilibrium eutectic eutectoid Example Problem fatigue ferromagnetic fibers fraction fracture glass glass transition temperature grain boundaries heat impurity increases interface interstitial ions lattice liquid load magnetic martensite matrix mechanical melting metal microstructure modulus molecules nucleation occurs oxide pearlite peritectic phase diagram plane polyethylene polymers primary bonds properties quench ratio reaction region resistance result schematic secondary bonds semiconductors shown in Figure shows silicon SiO2 solid solution steel strain strength stress surface tensile tetrahedral transformation unit cell vacancies valence band