(a) What is the distinction between hypoeutectoid and hypereutec (a) What is the distinction between hypoeutectoid and hypereutectoid steels? (b) In a hypoeutectoid steel, both eutectoid and proeutectoid ferrite exist. Explain the difference between them. What will be the carbon concentration in each?
(a) What is the approximate ductility (%EL) of a brass that has a yield strength of 275MPa (40,000psi)? (b) What is the approximate Brinell hardness of a 1040 steel having a yield strength of 690MPa (100,000psi)? (a) What is the approximate ductility (%EL) of a brass that has a yield strength of 275MPa (40,000psi)? (b) […]
The electric field of an elliptically polarized plane wave The electric field of an elliptically polarized plane wave is given by Determine (a) The polarization angles (and (b) The direction of rotation.
(a) Suppose that Li2O is added as an impurity (a) Suppose that Li2O is added as an impurity to CaO. If the Li+ substitutes for Ca2+, what kind of vacancies would you expect to form? How many of these vacancies are created for every Li+ added? (b) Suppose that CaCl2 is added as an impurity […]
(a) What is the distinction between cement and concrete+ (a) What is the distinction between cement and concrete? (b) Cite three important limitations that restrict the use of concrete as a structural material. (c) Briefly explain three techniques that are utilized to strengthen concrete by reinforcement.
(a) What is a hybrid composite? (a) What is a hybrid composite? (b) List two important advantages of hybrid composites over normal fiber composites.
What electron subshell is being filled for the rare (a) What electron subshell is being filled for the rare earth series of elements on the periodic table? (b) What electron subshell is being filled for the actinide series?
(a) What is the distinction between matrix and dispersed phases (a) What is the distinction between matrix and dispersed phases in a composite material? (b) Contrast the mechanical characteristics of matrix and dispersed phases for fiber-reinforced composites.
Two waves on string are given by the following functions: Two waves on string are given by the following functions: y1(x, t) = 4cos (20t â 30x) (cm), y2(x, t) = – 4cos (20t + 30x) (cm), Where x is in centimeters the waves are said to interfere constructively when their superposition |ys| = |y1 […]
(a) What are the three main components of a whiteware (a) What are the three main components of a whiteware ceramic such as porcelain? (b) What role does each component play in the forming and firing procedures?