What is the role of impurities of in heterogeneous nucleation?
o What is easier: Homogeneous or heterogeneous nucleation? Why? o What does an Isothermal Transformation (IT) Diagram tell us? o How do nucleation rates and diffusion rates influence the shape of the IT Diagram? o What do the letters "A", "F", "P" "B", and "M" mean on these diagrams? o What are the similarities and differences between the following microstructures: Coarse Pearlite; Fine Pearlite; Bainite; Spheroidite; and Tempered Martensite? o How is Martensite (not the tempered kind) formed, and how...
Please solve g,h,i,j,k. Thank you
(g) (Gpoints) Comparson of bomogencous macleation and heterogeneous nucleation, the beterogeneous nucleation has a critical nueksts with saller radius than a critical tuckeus of bomogsneous noceation o a critical nucles with arger radius thar a critical ucleus of homogeneous nucleation e a catical muckus with same radius as a criticat rnucleus of homogencous nucleation () Gpoins) Heterogencous nucleation is more vable than homogeneous nucleation because the heterogeneous . Has a critical nucleus wih smaler activation...
With the aid of clear sketches, highlight two major difference between homogeneous and heterogeneous nucleation. b) The iron–iron carbide eutectoid reaction is and is fundamental to the development of microstructure in steel alloys. On cooling, austenite, with an intermediate carbon content, transforms to a ferrite phase, having a much lower carbon content, and also cementite, with much higher carbon. Figure 4.1 is a temperature-timetransformation (TTT) diagram for the said process at 675℃. i. Determine how long it takes for austenite...
1. In the Grain Boundary Nucleation of aa phase to develop 5 phase, the optimum embryo shape should be that which minimizes the total interfacial energy. The optimum shape will consequently be abbuted spherical caps as shown in the following figure, which given by Cos 0 = Yaal 2 Yap sle)-5,2+011-00 X1 cosey = 0 208 Yap Yal a) Calculate the 8 ini figure aboves if the Yaa is between 450-600 m) m 2 and Yep is between 600-700 m]...
What are soluble impurities. (b) Do soluble impurities in solids effect the melting point of the sample? if so, what are the effects?(c) What are insoluble impurities? (d) Do insoluble impurities in solids effect the melting point of the sample? if so , what are the effects?
5. What is deionized water? What kind of impurities can be removed by deionization? What kind of impurities cannot be removed by deionization?
what will be happened to the resisitivity if the doped impurities in the non magnetic metal is magnetic ions
What may have led to impurities in a sample when preforming recrystalization??
1) What is nucleation? How are microtubules nucleated? How is Actin commonly nucleated? 2) How do motor proteins work? Why is it important that these proteins have two domains that interact with the cytoskeletal element (“feet”)? 3) Give two examples of Actin binding proteins that would affect actin dynamics. 4) Intermediate filaments are very different from the other two cytoskeletal elements. What are those differences?
8. The proportion of impurities per batch in a chemical product is a random variable that is well modeled by a Beta distribution with a-3 and ß-2. A batch with more than 40% impurities cannot be sold. a. Find the probability that a randomly selected batch cannot be sold because of excessive impurities b. What is the mean proportion of impurities? the variance? (Hint: use an appropriate method) 9. Suppose Y the amount spent on electricity (in dollars) per month...