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Unformatted text preview: 3 Introduction to Materials Science 12.17 Determine the electrical conductivity of a Cu-Ni alloy that has a yield strength of 125 MPa (18,000 psi). You will find Figure 8.16b helpful. 12.23 Define the following terms as they pertain to semiconducting materials: intrinsic, extrinsic, compound, elemental. Now provide an example of each. 12.31 Using the data in Table 12.2, compute the electron and hole concentrations for intrinsic InSb at room temperature. . 12.34 Compare the temperature dependence of the conductivity for metals and intrinsic semiconductors. Briefly explain the difference in behavior. 12.41 Estimate the temperature at which GaAs has an electrical conductivity of 3.7x10-3 ( Ω-m)-1 assuming the temperature dependence for σ of Equation 12.39a. The data shown in Table 12.2 might prove helpful....
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This note was uploaded on 03/27/2010 for the course ES 162 taught by Professor Ang during the Spring '10 term at Yeditepe Üniversitesi.
- Spring '10