We produce and/or have access to various types of samples and targets and produce also custom ones on request for reference, demonstration, education, training, and research using ProboStat measurement cells.
Disk- and bar shaped samples
The samples are disks with 0, 1, 2, or 3 Pt electrodes or bars without electrodes or with Pt end-face electrodes. The electrodes are made with commercial Pt-pastes and may have Pt mesh embedded. The samples are uniaxially cold-pressed and subsequently sintered to >90% density. The ceramic powders are mostly commercial state-of-the-art supplies or spray-pyrolyzed.
The figures above and tables below show typical shapes and materials. For other shapes and materials, contact us.
Sample shapes
|
Sample shape |
Electrodes |
Measurements |
|
Disk
|
None |
van der Pauw 4-point measurements |
|
1 (counter electrode) |
Application of own working electrode |
|
|
2 (counter and ring reference electrodes) |
Application of own working electrode |
|
|
2 (working and counter electrodes) |
2-electrode conductivity measurements |
|
|
3 (working, counter, and ring reference electrodes) |
Electrode studies |
|
|
Bar |
None |
4-point conductivity measurements |
| Bar 4 (+/-1) cm long 4-10 mm width |
2 (end faces) |
4-point conductivity measurements Seebeck-coefficient measurements |
Sample materials
|
Material |
Powder supply |
Typical properties |
|
Yttria-stabilized zirconia 8YSZ (92 mol% ZrO2 + 8 mol% Y2O3) |
TOSOH |
Oxygen ion conductor |
|
Iron-substituted calcium titanate CTF10 (CaTi0.9Fe0.1O2.95) |
Praxair |
Mixed n- and p-type electronic and oxygen ion conductor |
|
Ytterbium-substituted strontium cerate SCYb5 (SrCe0.95Yb0.05O2.975) |
Praxair |
High-temperature proton conductor |
|
Yttria-substituted barium zirconate BZY15-Ni (BaZr0.85Y0.15O3 + 1 wt% NiO) |
In-house |
High-temperature proton conductor |
|
Yttria-substituted barium zirconate BZY (BaZr0.85Y0.15O3) |
CerPoTech |
High-temperature proton conductor |
