On this page you will find data from samples provided by Dr. Zbigniew Rak of the Energy Research Centre of the Netherlands (ECN). Six thin (~500µ) bars of a NiO/ZrO2 cermet were studied. These cermets are used as anode supports in a Solid Oxide Fuel Cell (SOFC). The purpose of the study was to determine the Young's moduli of the cermets by using the Buzz-o-sonic nondestructive testing system.

The results are shown in Table 1. Table 1 was derived from a Microsoft® Excel® spreadsheet available from BuzzMac Software.

Table 1: Buzz-o-sonic data for NiO/ZrO2 Anode Supports

class="justText">Flex. = the resonant frequency in flexure mode
Tors. = resonant frequency in torsion mode
BD = bulk density
E = Young's modulus
G = shear modulus
µ = Poisson's ratio

As might be expected from the typical dependence of Young's modulus on porosity, the Young's moduli of the cermets correlated strongly to the bulk density (figure 1)

Fig 1: Young's modulus Vs Bulk Density for NiO/ZrO2 cermets.4F was a full-sized square sample

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