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(a)
Interpretation:
Substitution of Mg2+ for yttrium ions in Y2O3 causes the point defect in Y2O3 structure. Changes required in structure to maintain charge balance are to be explained.
Concept Introduction:
Point defect can be defined as the missing of an atom from its crystal lattice or presence at irregular place in its crystal lattice. Point defects can be of many types such as self-interstitial atoms, interstitial impurity atoms, vacancies, and substitution atoms.
(b)
Interpretation:
Substitution of Fe3+ for magnesium ions in MgO causes the point defect in MgO structure. Changes required in structure to maintain charge balance is to be explained.
Concept Introduction:
Point defect can be defined as the missing of an atom from its crystal lattice or presence at irregular place in its crystal lattice. Point defects can be of many types such as self-interstitial atoms, interstitial impurity atoms, vacancies, and substitution atoms.
(c)
Interpretation:
Substitution of Li1+ for magnesium ions in MgO causes the point defect in MgO structure. Changes required in structure to maintain charge balance is to be explained.
Concept Introduction:
Point defect can be defined as the missing of an atom from its crystal lattice or presence at irregular place in its crystal lattice. Point defects can be of many types such as self-interstitial atoms, interstitial impurity atoms, vacancies, and substitution atoms.
(d)
Interpretation:
Substitution of Fe2+ for sodium ions in NaCl causes the point defect in NaCl structure. Changes required in structure to maintain charge balance is to be explained.
Concept Introduction:
Point defect can be defined as the missing of an atom from its crystal lattice or presence at irregular place in its crystal lattice. Point defects can be of many types such as self-interstitial atoms, interstitial impurity atoms, vacancies, and substitution atoms.
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Chapter 4 Solutions
Essentials of Materials Science and Engineering, SI Edition
- (a) Find a second-order homogeneous linear ODE for which the given functions are solutions. (b) Show linear independence by the Wronskian. (c) Solve the initial value problem. a. cos(5x), sin(5x), y(0) = 3, y'(0) = −5 b. e-2.5x cos(0.3x), e-2.5x sin(0.3x), y(0) = 3, y'(0) = -7.5arrow_forward5. In the figure, v(t) = m(t)ej2nfct where the message signal is m(t): = Acos (2πfmt) and the carrier signal is vc(t) = 2e−j(2nfct+0) where 0 is constant and 0 < fmarrow_forwardSolve the IVP. a. y" 16y 17e* ; = y(0) = 6, y'(0) = -2 b. (D² + 41)y = sin(t) + ½ sin(3t) + sin(t) ; y(0) = 0, y'(0) : = 35 31arrow_forwardFind the general solution. a. y' 5y = 3ex - 2x + 1 - b. y" +4y' + 4y = e¯*cos(x) c. (D² + I)y = cos(wt), w² # 1arrow_forward= cos (2π x 10t+ 0) where 0 is random with a probability density E [0, 2π), and f(0) = 0 otherwise. v,(t) passes through a linear filter below. 2. Consider a random process v(t) function f(0) = 1/(2) for vi(t)- H(f) vo(t) Determine (a) (5%) vo(t); (b) (10%) autocorrelation function of v(t); (c) (8%) power spectral density function of vo(t); (d) (7%) power of vo(t). 1 = H(f) 2πf2+1arrow_forward4. Consider v(t) = 2 cos(t) + 5 sin(2t) passes through a linear system with frequence response H(f). 3 vi(t) Determine (a) (10%) vo(t); (b) (5%) power of vo(t). H(f) → vo(t) H(f)= 3, Ifls- 4π (0, otherwise.arrow_forward3. For the AM demodulator in figure, v(t) = m(t)cos (2πfet + 4) with a constant where the message signal is m(t) v(t)- =Acos (2πfmt) and carrier signal is v(t) = cos (2πfet) with fmarrow_forwardNot use ai pleasearrow_forwardTHIS IS NOT A GRADING ASSIGNMENT: Please only do lab 2.2 (bottom part of the first picture) For that Lab 2.2 do: *Part 1 *Part 2 *Part 3 I also attached Section 2.5.2 which is part of the step 1 so you can read what is it about. Thank you!arrow_forward14arrow_forwardcan you please give me: * the code (step 3) *the list file (step 5) *and answer step 6 Thank youarrow_forward5. In the figure, v(t) = m(t)ej2nfct where the message signal is m(t): = Acos (2πfmt) and the carrier signal is vc(t) = 2e−j(2nfct+0) where 0 is constant and 0 < fmarrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_iosRecommended textbooks for you
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