Review of mechanical characterization methods for ceramics used in energy technologies

Mechanical characterization of micro- and nano-porous alumina

“…The porous substrate provides mechanical stability of the entire membrane structure [5]. Considering that the structural integrity has to be warranted, knowledge of the deformation and fracture behavior are of great importance for proposed porous substrate materials, requiring a characterization of elastic modulus and fracture strength [7,8]. The elastic modulus links applied strains to induced stresses, whereas the strength gives the stress limit that the material can sustain in terms of a discrete failure probability [9].…”

Mechanical properties of tape casted Lanthanum Tungstate for membrane substrate application

“…Similar as already verified for oxygen transport membranes, high permeation rates can be achieved by thin membrane layers [ 7 ] supported by a porous substrate. This makes the mechanical stability of the substrate an important aspect [ 8,9 ].…”

Experimental set up for the mechanical characterization of plane ITM membrane at high temperature

“…is necessary. The mechanical properties required for a reliable prediction are not the "intrinsic properties" of the material but those of the final parts [7]. Then, the scale-up of this technology requires the development of an experimental set up adapted to the final shape of the membrane in order to obtain meaningful data in sense of numerical prediction.…”

“…For tubular membranes, C-ring test permit to access quite easily to Young modulus, tensile strength and fracture toughness [8]. Two other types of test, namely the O-ring tests [7] and the four points bending test on half-tubes [9], can also be used to characterize the mechanical properties of tubular membranes. For planar membranes, usual tests are not fully satisfactory.…”

“…For thin plates, the review of Wei et al [7] reported the main mechanical tests and some of their limitations. The suitable tests are the biaxial bending tests.…”