Compression of microspheres: Theory and application
Compression of microspheres: Theory and application
Compression of microspheres: Theory and application
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Young’s modulus<br />
Determination <strong>of</strong> single contact deformations <strong>and</strong> :<br />
∗<br />
silicon-silica contact: <br />
∗<br />
diamond-silica contact: <br />
<br />
/ <br />
<br />
∗<br />
<br />
<br />
1 <br />
/ <br />
<br />
∗<br />
<br />
<br />
<br />
<br />
<br />
4 3 1<br />
∗<br />
1<br />
∗<br />
<br />
<br />
<br />
/ 1 / <br />
/<br />
Example: Stöber silica (R = 250nm)<br />
∗<br />
Q = 0.500 <br />
∗<br />
Q = 0.530 <br />
27.7 1.9 <br />
25.9 1.8 <br />
J. Paul PiKo-Workshop Siegen 2012<br />
Q = δ 1<br />
/δ t<br />
0.8<br />
0.7<br />
0.6<br />
0.5<br />
PS<br />
fused<br />
silica<br />
diamond<br />
0.1 1 10 100 1000<br />
E * particle [GPa] Si (100)<br />
5