Engineering, 05.05.2020 06:36 oranjejuice

A polycrystalline copper alloy contains a dispersion of hard aluminum oxide particles of diameter 10-8 m and an average center-to-center distance of 2.5 x 10-8 m, measured in the slip planes. The Young’s modulus of Cu is E = 120 GPa and the Burger’s vector b = 0.255 nm. Estimate the contribution of the hard particles to the yield strength of the alloy

Answers: 1

Show answers

Another question on Engineering

Engineering, 03.07.2019 15:10

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

Answers: 1

Answer

Engineering, 04.07.2019 18:10

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.

Answers: 1

Answer

Engineering, 04.07.2019 18:20

Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?

Answers: 3

Answer

Engineering, 04.07.2019 19:10

A)-in the process of engineering design, explain the contribution of material selection. b)- explain the procedure of synthesis as is employed in engineering design. c)- is there any relationship between ergonomics and engineering design? explain. d)- safety consideration in engineering design includes human, product and the enviroment . explain how safety will be incorporated into the design?

Answers: 3

Answer

You know the right answer?

A polycrystalline copper alloy contains a dispersion of hard aluminum oxide particles of diameter 10...

Questions