Reducing the Thickness of a Pt Coating
Purpose
The coating of the oil shale sample shown in the images below was too thick (Fig.1) The sample looks "foggy".
The real structure is not clearly visible.
A short los energy milling solved the problem.
Preparation conditions
| Acceleration voltage: | 2 kV |
| Gun current: | 1.5 mA |
| Milling time: | 2 min |
Result
After milling the oils shale structure is clearly visible (Fig.2).
Cleaning of a Contaminated TEM Sample
Purpose
The reason for contamination of TEM samples glued on a Cu ring was single sided ion milling. Because the rear side can have material re-deposited from the Cu ring (Fig.3)
Preparation Parameters
| Acceleration voltage: | 2 kV |
| Gun current: | 1.5 mA |
| Sample movement: | Rotation |
| Milling angle: | 10° |
| Milling time: | 25 min. |
Results
As shown in the image the re-deposition is completely removed after the cleaning procedure. The grain structure is clearly visible (Fig.4).
