Question: ( Hertzberg 1 . 4 5 ) Using the elastic constants reported in Table 1 . 7 , ( a ) compute the moduli of

(Hertzberg 1.45) Using the elastic constants reported in Table 1.7,
(a) compute the moduli of elasticity for nickel and 3C silicon carbide single crystals in
the (:100:),(:110:), and (:111:) directions.
(b) calculate the relative degree of anisotropy for each material.
Table 1.7 Stiffness and Compliance Constants for Selected Crystals"MaterialCubicAluminum, AlCopper, CuGallium arsenide, GaAsGold, AuIron, FeFe-17.5Cr-12NiLithium fluoride, LiFMagnesium oxide, MgOMolybdenum, MoNickel, NiSilicon, SiSilicon carbide, SiC (3C)Sodium chloride, NaCibSpinel, MgAl,04Titanium carbide, TicTungsten, WZinc sulfide, ZnSHexagonalCadmium, CdCobalt, CoMagnesium, MgSilicon carbide, SiC (4H,6H)\deg Titanium, TiZinc, ZnC110.8216.8411.818.6023.7021.611.229.346.024.6516.435.24.8727.951.350.110.79C1(101\deg Pa)C126.1312.145.3515.7014.1014.44.569.217.614.736.3514.01.2615.310.619.87.22C12 C1312.104.814.4230.7016.5010.305.972.622.1750.29.55.6C335.1335.816.1756.518.16.10C442.851.577.54S15.941.184.202.331.5011.600.8012.91.0015.56.321.1611.00.2823.30.40112.470.737.960.7715.30.371.272.290.58517.80.2115.140.264.122.0C44 S111.851.237.530.471.642.2016.90.214.650.973.830.84S12SiC has many polymorphs, including 3C (B-SiC, cubic),4H (hexagonal), and 6H (a-SiC, hexagonal).(10-11 Pa l)-0.15S12-0.57-0.63-0.37-1.07-0.28-0.40-0.34-0.096-0.08-0.27-0.22-0.11-0.47-0.208-0.036-0.07-0.802S13-0.93-0.07S443.511.331.682.380.860.781.580.6480.910.801.260.437.850.6540.5610.662.43S33 S443.555.40-0.230.321.32-0.79-0.501.976.10-0.04-0.020.180.59"Data adapted from H. B. Huntington, Solid State Physics, Vol. 7, Academic, New York, 1958, p.213, and K. H. Hellwege, Elastic, Piezoelectricand Related Constants of Crystals, Springer-Verlag. Berlin, 1969.bNote that Ej00>Eu-16.09.06.616.103.425.01-0.47-0.180.692.150.05-0.732.842.61
( Hertzberg 1 . 4 5 ) Using the elastic constants

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