3.) Calculate the benefit of adding AlO nanoparticles to the x = 0.005 and the x = 0.02 mass fraction mixtures using the Kedzierski (2012) model: 14 9up = 1 + 9PL 1.45×10 [s m] N np A IG OVLPX 3/2 Dap (9) PL. (Pp-P₁) g(1-x₂)² np Assume that for x = 0.005 (Nap/As)G= 3 x 1020 m² and for x = 0.02 (Nnp/As)G= 4 x 102⁰ m²². The properties of the AlO nanoparticles are: AIO nanoparticles Dup (nm) 10 Php (kg/m³) 3600

5-15 Compare the diffusion coefficients of car- bon in BCC and FCC iron at the allotropic transformation temperature of 912°C and explain the difference.

Please kindly help. I will give a like. Thank you! a. Describe the S-curve model of diffusion on how does ‘rate of adoption’ change over time? At which-point is the rate of diffusion the fastest? b. S-curve model of diffusion: (true/false) and reasoning - k = 0, the rate of diffusion is instantaneous? - fixed k ≥ 0, the carrying capacity is determined only by the ratio of a and b? - fixed k ≥ 0, the rate of diffusion is determined only by the ratio of a and b? c. The diffusion of hybrid corn in the 1940s, who or which region seems to have adopted the hybrids more quickly and why?

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Compare the diffusion coefficients (in cm²/s) of nitrogen in BCC and FCC iron at the allotropic transformation temperature of 912°C. Decc -153606 X Your response differs from the correct answer by more than 10%. Double check your calculations, cm²/s -1976-7 Dicc x Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. cm2/s

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A diffusion couple of two metals, A and B, was fashioned as shown: Diffusion of A atoms A-B alloy B Diffusion of B atoms After a 690 hour heat treatment at 1120°C the concentration of A is 1.8 wt% at the 3.2 mm position within Metal B. At what temperature (in Kelvin) must the diffusion couple need to be heated to produce this same concentration at a 2.3 mm position after 690 h? The preexponential and activation energy values for the diffusion of A in B are 1.9 x 104 m²/s and 239 kJ/mol, respectively.

Derive the inte polation functions of the transition element shown in Fig. 1 2 3 3 4 6 5 2 1 2 Figure 1 2. 3.

[Decarburization] An FCC iron-carbon alloy initially containing carbon with the concentration, C0, is exposed to anoxygen-rich and virtually carbon-free atmosphere. Under the given conditions, the carbon diffuses from the alloy andreacts at the surface with the oxygen in the atmosphere, meaning that the carbon concentration at the surface position is maintained essentially at 0 wt% C. The subproblems are independent.(1) Determine the diffusion coefficient at the temperature T given below.  Use T = 1250 °C(2) When the value of D is given below, what position will the carbon concentration be Cx after a treatment for thetime, t? Use D = 1.93 × 10−10m2 /s; C0 = 0.35 wt%; Cx = 0.11 wt%; t = 12 hr