Open-cell ceramic foams are used as filters in casting processes of molten metal to reduce the amount of non-metallic inclusions. These filters are exposed to high temperatures and loadings, sometimes for a longer time. Therefore, the dimensional stability has to be considered, which suffers from inelastic deformations, in particular creep deformations.

A recent work of the authors describes the creep deformation behaviour of such foam structures using an experimental-numerical approach based on bulk material creep tests. Now, the results of this prediction are validated by creep curves of real foam samples. This comparison shows a good accordance for the considered parameters (load, temperature, time, and creep phase).

Moreover, the influences of different structural parameters on the elastic foam stiffness and foam creep resistance are investigated. The relative foam density has the greatest impact, followed by uniaxial pore stretching in one direction and strut shape, whereas polydispersity has only a very small effect.

开孔陶瓷泡沫在熔融金属的铸造过程中用作过滤器，以减少非金属夹杂物的数量。这些过滤器会暴露在高温和高负荷下，有时会暴露更长的时间。因此，必须考虑尺寸稳定性，该尺寸稳定性会受到非弹性变形，特别是蠕变变形的影响。

作者的最新工作使用基于散装材料蠕变测试的实验数值方法描述了这种泡沫结构的蠕变变形行为。现在，该预测的结果已通过实际泡沫样品的蠕变曲线进行了验证。该比较显示了所考虑参数（负载，温度，时间和蠕变阶段）的良好一致性。

此外，研究了不同结构参数对弹性泡沫刚度和泡沫抗蠕变性的影响。相对泡沫密度的影响最大，其次是在一个方向和支杆形状上进行单轴孔隙拉伸，而多分散性的影响很小。