Genel Bilgiler

Genel Bilgiler

A Measurement Setup for Varied Sample Geometries

The SBA 458 Nemesis® is heralded for its unique measurement setup, which accomodates more sample geometries than usually for this technique. Measurements can be carried out at temperatures up to 800°C.

Quick Start to Measurements – Convenient Sample Change

Changing samples is accomplished quickly and easily by hand, without any tools. This prevents potential damage to the sample from sticking to the electrodes.

Integrated Quality Check – Outstanding Two-Heater System

The SBA 458 Nemesis® has two heavy systems that are employed in an alternating manner for each temperature step. Deviations from linearity and hysteresis due to inaccurate measurement can be immediately observed before and during the measurement

Highly Reliable and Rugged Design – Avoiding Diffusion Problems

The thermocouples are firmly anchored and are immobilized during the measurements by a defined contact force resulting from the mass and the cold spring. Sheating of the thermocouples prevents diffusion from cementing them to the sample.

No Distance Determination Required

Since the thermocouple positions are fixed, the cumbersome process of determining their distance before each measurement is eliminated. Eliminating this potential source of error in determining electrical conductivity increases the precision and reproducibility of the results.



SBA 458 Nemesis® - Technical Specifications (subject to change)
DesignTwo-heater system, integrated quality check, horizontal sample arrangement
Temperature rangeRoom temperature to 800°C
Temperature setting rangeUnlimited number of temperature steps
ThermocouplesInconel®-sheathed type K (NiCr/NiAl), Fixed position
Sample dimensionsØ: 12.7 to 25.4 mm
Length: 12.7 to25.4 mm
Width: 2.0 to 25.4 mm
Thickness: ≤ 2 mm
AccuracySeebeck coefficient better than 10%
Electrical conductivity better than 10%
RepeatabilitySeebeck coefficient better than 3%
Electrical conductivity better than 7%
AtmosphereReducing (max. 2% H2), inert, oxidizing
Vacuum-tightness10-2 mbar


The software is based on Windows 7, 32 bit. It fully controls the measurements, which are performed at each specified temperature interval. The software allows for easy operation and control of the data.

The resistance (U-I plot) and quality check (Seebeck) functions are integrated. The measurement data can be easily exported.