High Temperature Sample Cell


The ProboStatTM is a cell for measurements of electrical properties, transport parameters, and kinetics of materials, solid/gas interfaces and electrodes under controlled atmospheres at high temperatures. The versatile construction and accessories of the present system are based on years of development and experience in the Kofstad/Norby group at the University of Oslo. A ProboStatTM system may offer a cost-effective alternative to developing and building your own cell for studies, characterization and testing of inorganic materials, electroceramics, fuel cell components, membrane materials, etc.


Brief description

The sample under test rests on a ca. 50 cm long support tube of alumina, inside a closed outer tube of alumina or silica. The sample can be contacted with 2, 3 or 4 electrodes of e.g. platinum, using disk, van der Pauw, or bar geometries. A spring-loaded alumina assembly holds the sample and electrodes in place. 16 electrical feedthroughs allow use of 4 shielded electrode leads, surface guard, and up to three thermocouples (e.g. for Seebeck coefficients). Electrical connections are made via standard multiconnector, coax cables suitable for standard impedance spectrometer connectors, and standard thermocouple compensation cables. Gases can be fed in single or dual chamber modes directly onto or from electrodes, allowing measurements under controlled atmospheres, transport number measurements in gradients, and testing of fuel cell, pump, and sensor components. Gas supply is via Swagelok quick-connects. Suitable for >4 cm diameter, <80 cm long tubular furnaces.


Materials properties measured and applicable methods

  • Conductivity vs T, pO2, pH2O, etc.
  • DC, AC, impedance spectroscopy
  • Dielectric properties, loss, etc.
  • Disk, van der Pauw, and bar geometries
  • 2, 3, and 4 electrodes
  • Ionic transport number
  • Proton transport number
  • Seebeck coefficient
  • I-V-characteristics
  • Fuel cell components and single cell testing
  • Electrode kinetics
  • H/D isotope effects
  • Electrochemical pumping, gas permeation and electrocatalysis with gas analysis (e.g. GC or MS) on outlets
  • Sensor testing
  • Hot zone accessories (noble metals and ceramics) for most methods can be supplied.
  • Poling of ferroelectrics possible with the high-voltage (kV) version

Close-up photos show example of connection to disk samples for impedance or concentration cell (transport number or fuel cell) measurements. The schematics show principle of spring loads and regular 2-electrode 4-wire setup with dual gas supplies and thermocouple. Part of base unit with feedthroughs is shown in the photo below.



Specifications

  • Outer tube diameter: 40 mm
  • Overall length: 75 cm, shorter versions available (-10, -20, -30 cm)
  • Single end cell assembly
  • Sample fixation: spring force via alumina rods
  • All hot-zone electrode leads detachable via feedthrough mini-connectors
  • Support tube systems from 10 to 24 mm diameter detachable
  • For up to 24 mm diameter disk samples
  • For up to 50 mm long bar samples
  • Temperature: typical long term: <1400 °C; shorter term: <1600 °C
  • Atmosphere: Oxidizing or reducing, wet or dry, from small overpressure to low vacuum6 BNC electrode connections for impedance spectrometers etc.
  • Internal shields bridging (for SI 1260 , HP 4192A etc.), ground and guard switches
  • 3 thermocouple connections
  • 4 Swagelok gas quick-connects to 1/8'' tubing (other connections on request)
  • Standard materials: Alumina AL23, Pt, Pt10%Rh, Ni-plated brass
  • Water cooling (or heating) of cold end base unit is possible
  • Spare parts supply, also of hot zone consumables


For more info visit www.norecs.com


Analyzers
Alpha-A Series
HVB300
HVB1000
HVB4000
POTGAL15V10A
POTGAL30V2A
Beta Series
Alpha Series
Temperature Control Systems
Quatro Cryosystem
Novocool
Novotherm
Novotherm-HT
Industrial Temperature Controller
Purge Gas Option
Preparation Chamber
Turnkey systems
BDS Turnkey Dielectric / Impedance Spectrometers without Temperature Control
Concept Turnkey Dielectric, Conductivity and Impedance Spectrometers with Temperature Control
RF Extension


MEMS Products
Double Beam Laser Interferometer (aixDBLI)
Sensor & Actuator Products
Ceramic Multilayer Actuator test bench
Piezoelectric Evaluation System (aixPES)
Thin Film & Memory Products
TF 2000 E
TF 1000
Easy Check
FeRAM Cell Tester


ProboStat


Electrochemical
Line 7000
7030 - High Impedance Adapter
7060 - Potentiostat / Galvanostat ± 30 V - ± 10 A
7050 - Potentiostat / Galvanostat ± 45 V - ± 4 A
7200 - Frequency Response Analyser
7805 - Hi-Speed arbitrary waveform generator and digitaliser
Line 2000
2049 - Potentiostat / Galvanostat ± 22 V - ± 1,2A
2053 - Research Potentiostat / Galvanostat ± 50 V - ± 1,2 A
2059 - Low-current Potentiostat / Galvanostat ± 10 V - ± 10 mA
7800 - 16-Bit Interface and Function Generator for 2000 series


Cell Products
HTSH-1200
FCSH-1000
FCSH-V3
AE Products
520
7260


Precision Measurement Instruments
Integrated Measurement Solutions
Laser Triangulation Systems
Fiber Optic Measurement Systems
Capacitance Measurement Systems
Precision Signal Source/Function Generator
Calibration and Fixturing