Question

A candidate material for a turbine blade application oxidizes by diffusion of metal atoms through the oxide to the metal surface, where metal and oxygen react to form the oxide. After 10 hours at 550°C, an oxide layer 8 um has formed. What will the thickness be after 100 hours. (hint: turbine blade can be considered as a cylinder)

Answer 1

The thickness of the oxide layer will 80 μm after 100 hours.

Step-by-step explanation:

Thickness of oxide layer in 10 hours= 8 μm

Thickness of oxide layer in 1 hour =
`(8 \mu m)/(10 hour)`

Thickness of oxide layer in 100 hour :

`(8 \mu m)/(10 hour)* 100=80 \mu m`

The thickness of the oxide layer will 80 μm after 100 hours.