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xxTIMURxx [149]

3 years ago

7

Need help on this study island question please and thank u

1 answer:

MatroZZZ [7]3 years ago

8 0

Answer:

d

Explanation:

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3 years ago

If aluminum is diffused into a thick slice of silicon with no previous aluminum in it at a temperature of 1100˚C for 8 hours, wh

RideAnS [48]

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8.354 nanometers

Explanation:

To treat a diffusive process in function of time and distance we need to solve 2nd Ficks Law. This a partial differential equation, with certain condition the solution looks like this:

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Where Cs is the concentration in the surface of the solid

Cx is the concentration at certain deep X

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and erf is the error function

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