Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
5.10 Show that
In this expression, when the x = 0 position is taken as the initial diffusion couple interface, then C1 is the impurity concentration
for x 6 0; likewise, C2 is the impurity content for x 7 0.
B x2
Cx= 1Dtexp a-4Dt bis also a solution to Equation 5.4b. The pa- rameter B is a constant, being independent of both x and t.
5.11 Determine the carburizing time necessary to achieve a carbon concentration of 0.30 wt% at a position 4 mm into an iron-carbon alloy that initially contains 0.10 wt% C. The surface concentration is to be maintained at 0.90 wt% C, and the treatment is to be conducted at
A diffusion couple composed of two platinum-gold alloys is formed; these alloys have compositions of 99.0 wt% Pt-1.0 wt% Au and 96.0 wt% Pt-4.0 wt% Au. Determine the time this diffusion couple must be heated at 1000°C (1273 K) in order for the composi- tion to be 2.8 wt% Au at the 10 mm position into the 4.0 wt% Au side of the diffusion cou- ple. Preexponential and activation energy values for Au diffusion in Pt are 1.3 X 10-5 m2/s and 252,000 J/mol, respectively.
Consider a sample of thickness L = 25 mm and a square planform of width W = 250 mm. In an experiment per- formed under steady-state conditions, temperature mea- surements made at the lower and upper surface of the sample yield values of T1 = 150°C..
Knowing that crank AB rotates about point A with a constant angular velocity of 900 rpm clockwise, determine the acceleration of the piston P when θ = 120°.
Using Fig. 19.80, design a problem to help other students better understand how to find y parameters in the s-domain.
in an industrial plant liquid is to be pumped from a storage tank through a system of pipes fittings and instruments to
a vehicle traveling at 30 mph enters a 600 ft radius curve and begins to increase its speed at a rate of 10 fts2. find
calculate the pressure drop through the tubes for each selection. Recommend a final design that specidies water-flow rate, tube size, number of tubes, and tube length. Comment on your selection.
a wind tunnel draws atmospheric air at 20c and 101.3 kpa by a large fan located at the exit of the tunnel. a if the air
An air bubble rises from the bottom of a well where the temperature is 25°C, to the surface where the temperature is 27°C. Find the percent increase in the volume of the bubble if the depth of the well is 5 m. Atmospheric pressure is 101,528 Pasca..
The gas pressure on the piston is 6 kg/cm2 when it has moved 1.5 cm from the inner dead centre on its power stroke - Determine the net load on the gudgeon pin when the engine runs at 2000 rpm . At what speed this load will be zero ?
consider an accelerometer with a natural frequency of 800 hz and a damping ratio of 0.6. determine the frequency range
the probability of a memory chip from a production line being defective is 0.04. find the probability that in a sample
for a short period of time the frictional driving force acting on the wheels of the 2.4-mg van is fd 600t2 n where t
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd