A series of yttria-stabilized zirconia single-crystals doped with 0.000–0.250 mol% Tb4O7 was prepared by the optical floating-zone method. As shown XRD and Raman spectroscopy, all crystals had a cubic-phase structure. These were initially orange–yellow in color, which is indicative presence Tb4+ ions, but they then became colorless after being annealed H2/Ar atmosphere as result reduction to Tb...

Giant electrostrictors based on oxygen deficient fluorites are of great technological and scientific interest due to their unusual electromechanical properties. It is, however, still not clear whether solid solutions between different can affect the electrostrictive In this work, we investigated response four 10 mol% gadolinium-doped ceria (GDC10) 8mol% yttria-stabilized zirconia (8YSZ), corres...

Firstly, the yttria-stabilized zirconia (YSZ) coating and gadolinium zirconate (GZO) with quasi-columnar structure were manufactured by plasma spray physical vapor deposition. At same time, a novel three-dimensional geometrical model was established that could satisfactorily reflect such structural characteristics. Then, based on this model, spatial distribution of pores porosity coatings therm...

The average residual stress distribution as a function of depth in an air plasma-sprayed yttria stabilized zirconia top coat used in thermal barrier coating (TBC) systems was measured using synchrotron radiation X-ray diffraction in reflection geometry on station I15 at Diamond Light Source, UK, employing a series of incidence angles. The stress values were calculated from data deconvoluted fro...

OBJECTIVE The present study is the second part of an investigation of strength, fracture toughness and microstructure of nine all-ceramic materials. In the present study, DC Zirkon, an experimental yttria partially stabilized zirconia, In-Ceram Zirconia slip and In-Ceram Zirconia dry-pressed were compared. METHODS Strength was appraised on ten bar-shaped specimens for each material (20 x 4 x ...

A monoclinic zirconia coating with a nanostructural surface was prepared on the Ti-6Al-4V substrate by an atmospheric plasma-spraying technique, and its microstructure and composition, as well as mechanical and biological properties, were investigated to explore potential application as a bioactive coating on bone implants. X-ray diffraction, transmission electron microscopy, scanning electron ...

In this study, small fraction of NiTi (5 wt%) was added to Yttria stabilized zirconia (YSZ) top coat to improve it sliding wear resistance. The measurement of width of wear tracks after wear tests under a 15 N load for 100 m sliding distances showed that the width of wear track in NiTi-YSZ coating is shorter than that in YSZ coating which depicts the higher wear resistance of NiTi-YSZ coa...