Chapter 17, Problem 17.10P

Interpretation Introduction

Interpretation:

Average thickness for oxide film before compaction and sintering needs to be calculated.

Concept introduction:

Volume fraction is defined as the ratio of volume of specified component to the sum of total volume of components.

  $\begin{array}{l}f=\frac{V_1}{V_1+V_2}\\ f=\text{volume}\text{fraction}\\ V_1=\text{volume}\text{of}\text{first}\text{component}\\ V_2=\text{volume}\text{of}\text{second}\text{component}\end{array}$

Volume of sphere is determined by the formula.

  $V_{sphere}=\frac{4}{3}\pi r^3$

Where r represents radius.