CELDI
CELDI
Newtec has developed, in collaboration with the Marcoule Institut for Separative Chemistry, a sample holder for scanning electron microscopy (SEM).
This device allows in situ and in real time observation of interface phenomena between a solid and a fluid, compatible with all SEM models for solid samples with liquid or gaz circulation in order to :
• Fine characterization of surface phenomena under fluid
• Participate in research, development and innovation in materials sciences (corrosion study, deposition,…) and in life science (cell reaction to a change in its environment).
![](https://newtec.fr/wp-content/uploads/2020/01/celdi.jpg)
CELDI cell in SEM chamber
CELDI characteristics :
- Dimensions : F = 60 mm x 30mm
- Pressure ramp: max 4 bar
- Applications : Corrosion, Dissolution, Precipitation, Biological
studies, Evolution of microstructures, Phase change
Précipitation
![](https://newtec.fr/wp-content/uploads/2020/01/dissolution-avant.jpg)
Before
![](https://newtec.fr/wp-content/uploads/2020/01/dissolution-apr-es.jpg)
After
Dissolution
![](https://newtec.fr/wp-content/uploads/2020/01/precipitation-avant.jpg)
Before
![](https://newtec.fr/wp-content/uploads/2020/01/precipitation-apres.jpg)
After
Corrosion
![](https://newtec.fr/wp-content/uploads/2020/01/corrosion-scaled.jpg)
Evolution of the acid attack of a surface
![](https://newtec.fr/wp-content/uploads/2020/01/celdi0.jpg)
![](https://newtec.fr/wp-content/uploads/2020/01/celdi2.jpg)
Example of evolution of the depth of the acid attack of a point on the corroded surface
![](https://newtec.fr/wp-content/uploads/2020/01/celdi3.jpg)
Acid reserve and rinsing
![](https://newtec.fr/wp-content/uploads/2020/01/celdi4.jpg)
Control software