– 2 Chemical lab:
– Resin infiltration-embedding lab
– 2 Preparation lab:
– Ionic preparation lab
-1 Coating lab:
– Gold coating
– Gold/palladium coating
(Osmium coating is done in chemical lab)
TEM-SEM Samples Preparation
Samples preparation is a fundamental step for TEM (SEM) observation. The choice of the appropriate technique depends on several parameters: material properties, analysis to be done, artefact induced by a technique with regards to the type of analysis needed .
Many preparation techniques are covered at CIME, for almost any kind of material.
Some of the TEM techniques described below can be partially or totally applied for SEM surface preparation, as well as for AFM technique (mechanical polishing, ultramicrotomy, cleavage, ion milling,…)
Coating is needed for TEM or SEM observation of insulating samples or for specimens embedded in a non conductive resin.
The choice of coating chemical element(s) depends mainly on the type of analyse to be done( high resolution, EDX, EBSD,…).