B Bulk modulus

Fig. 45 Simulated pattern evolution during microphase separation for a = 0.4 with A having a 10 times higher (a) and lower (b) bulk modulus than B. Black-. A-rich regions white-. B-rich regions. From [126]. Copyright 2003 American Chemical Society...

In general, CijU is a 9 x 9 tensor with 81 terms, but symmetry reduces this considerably. Thus, for the cubic crystal system, it has only three terms (Cmi, Cm2, and C4444) and for an isotropic material only two terms remain B = bulk modulus and G = shear modulus. A further simplification is that the bulk modulus, B for the cubic system is given by (Cmi + 2Ci2i2)/3, and the two shear moduli are C44 and (Cmi - Ci2i2)/2. 

Class Average Q Average Density a b Bulk modulus E i) X =... 

B—Bulk modulus is the ratio of stress to strain for hydrostatic compression. 

Fig. 101. (a) Volume change and (b) bulk modulus of TmSedjiTeoji, vs. pressure at 300 K. The dashed curve in (a) is the expected volume change for divalent Tm ions. The dashed curve in (b) is the bulk modulus calculated irom the independently measured Cn and c,2. (After Boppart and Wachter 1984b.)... 

The crystal structures are denoted as DIA = diamond, ZBL = zincblende, WRZ = wurtzite flo = lattice constant in angstroms (and c/a ratio for the wurtzite structures) B = bulk modulus in gigapascals = cohesive energy per atom in electronvolts Cgap = minimal... 

Fig. 3. Present calculated zero-temperature equations of state for Ta, Mo, and V. (a) Pressure versus atomic volume and (b) bulk modulus versus pressure.

Microscopic elastic constants B (bulk modulus) and C i-C,2 (one of the two shear moduli) with respect to x(the ratio H/Ta). (Printed from Reference 71.)... 

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