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1. Consider a liquid phase sintering material containing inert second-phase spheres. Sketch and explain the growth shapes of a grain around a sphere for a dihedral angle between them of 0, 90 and 160°, respectively.
2. Consider two liquid phase sintered compacts with the same liquid volume fraction but with different grain sizes. Describe the possible microstructural evolution expected during annealing of the compacts in contact at the liquid phase sintering temperature. Assume that the compacts are fully dense.
a centrifuge is used to remove solids from a 14.0 ppg mud using 8.33 ppg water. the mud and water enter the centrifuge
A cantilever bridge is built out from piers at either end and is to be joined in the middle. Discuss with a numerical example the problem of lining up the two halves of the span if the truss on one side of the roadway is in the sun and that on the..
For the crank-shaper mechanism shown in Fig. 2.14, graphically determine the length of stroke and the time ratio of advance to return. Use a scale of 3 in. = 12 in., and let O2O4 = 16 in., O2A = 6 in., O4B = 26 in., BC = 12 in., and the distance f..
there are 4 octahedral sites and 8 tetrahedral sites in the fcc unit cell stated on slide 17-7 and feo has the nacl
air flows through a converging adiabatic duct with no loss. the temperature at the inlet is 400 k. at the outlet the
Select the proper speeds and feeds for the job (the cutter is 4 in. in diameter) and compute the cutting time to mill this gear .Would you use up milling versus down milling?
reheat where high pressure and low pressure turbines are used is added to a simple steam cycle to increase the steam
a transparent rigid sealed container has a volume of 10m3. the upper half of the container holds steam of density 5kgm3
water at a temperature of 40 c and a pressure of 100 kpa enters a pump at the rate of 50000 kghr. the water leaves the
The inlet and outlet mean temper- atures of the water with respect to the radiator are and the air in the evaporator and condenser sections are the same, 3 X 10-3 K/W, determine the temp- erature required by the refrigerant in each section. Calcu..
Drag force on a carSuppose a car has a drag coefficient of 0.3. The drag coefficient is based on the frontal area of the car. For that drag coefficient, the car has a width of 6 ft and a height of 5 ft. It is travelling at 80 mph going through the..
question 1 a for the reciprocal lattice we know thatexpjg.r 1where g.r 2pit t an integernbsp r lambnc
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