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Samples for training

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
20 mm diameter
1-2 mm thickness

 

 

 

 

None

van der Pauw 4-point measurements
Application of own electrodes

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
Impedance spectroscopy
Transport number measurements in concentration cells
Fuel cell tests
Electrochemical reactors

3 (working, counter, and ring reference electrodes)

Electrode studies
Impedance spectroscopy
Electrochemical reactors
Surface guarded measurements of insulating materials (ring electrode used as surface guard)

Bar
4 (+/-1) cm long
4-10 mm width

None

4-point conductivity measurements
Seebeck-coefficient 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

 

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