Fracture properties of porous yttria-stabilized zirconia under micro-compression testing

Fracture resistance of yttria-stabilized zirconia dental implant abutments.

PURPOSE An in vitro study was performed to assess the effect of different degrees of clinical reduction of zirconia abutments on the failure load of clinical assemblies. MATERIALS AND METHODS Zirconia abutments (Y-TZP Ceramic Abutment, Astra Tech) were prepared with 0, 0.5, or 1 mm of external axial reduction starting 1 mm above the height-of-contour. Abutments (n = 10) were attached to impla...

Micro-tubular solid oxide fuel cell based on a porous yttria-stabilized zirconia support

Solid oxide fuel cells (SOFCs) are promising electrochemical energy conversion devices owing to their high power generation efficiency and environmentally benign operation. Micro-tubular SOFCs, which have diameters ranging from a few millimeters to the sub-millimeter scale, offer several advantages over competing SOFCs such as high volumetric power density, good endurance against thermal cyclin...

Optical properties of transparent nanocrystalline yttria stabilized zirconia

The optical properties of transparent nanocrystalline zirconia produced using a current activated method were characterized over the entire visible spectrum. The resolutions of the samples were characterized using standard resolution targets. All of the samples produced were found to have as high a resolution as detectable from the test, i.e., they are transparent not translucent. Transmission,...

Dielectric properties of ionic conductors : Yttria stabilized zirconia and forsterite

— Two ionic conductors : yttria stabilized zirconia and nonstoichiometric forsterite were studied by an impedance complex method. For both materials, this technique allows us to separate, on each side of a caracteristic frequency wc, two domains corresponding to different relaxation mechanisms. The frequency a>c has been identified as the jump frequency of the charge carriers. The frequency dep...

Computational Modelling Study of Yttria-stabilized Zirconia