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Cross Sectioning of Alumina

Application Note for Leica EM TIC 3X - Natural Resources

Purpose
Alumina is very difficult to handle and almost impossible to prepare with conventional methods. Ion beam slope cutting (Leica EM TIC 3X) is a method that can achieve cross sections of material combinations consisting of hard and soft components.

Goal
Cross section to see the components of alumina

Process Description
(benchmark values for this particular sample)
Mechanical pre-preparation: with Leica EM TXP using 9 µm diamond lapping foil at 2600 rpm.

EM TIC 3X Parameters
Acceleration voltage6kV
Gun current2.2 mA
Milling time8h

Results

  • The cut is flat and clean.
  • The components of alumina such as clay rocks are clearly visible.

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