The purpose of this prospective study was to determine the clinical outcomes of patients who had total hip arthroplasties with a zirconia (Zr) - Hylamer pairing. Fifty-eight consecutive cemented total hip arthroplasties with a Hylamer cup and 22.25 mm Zr head were examined for component wear and failure. The SF-36 and Mayo hip score were used to evaluate patient outcome. Regression and Kaplan M...

This article is devoted to the study of initial phase obtaining alloy 1420, namely, a primary material with desired chemical composition. The effect alloying magnesium, zirconium and lithium on strength properties material. In work, following materials were used obtain cast aluminum Al-Mg-Zr-Li system: technical purity A0 or A5, magnesium Mg95, LE-1, E100, aluminum-zirconium ligature AlZr5, alu...

This paper presents the results of mechanical strength of wet and dry zirconia/ Nafion® nano-composite membrane. The tensile tests were conducted to determine elastic modulus and stiffness of dry and wet pristine Nafion® membrane and modified Nafion® membrane. The composite membranes were prepared by recast method of different synthesized zirconium oxide with the zirconia content of 10% by weig...

Reaction of the dimeric zirconium imido compound [Zr2(mu-NAr)2Cl4(THF)4] with tris(3,5-dimethylpyrazolyl)methyl silane very selectively gave [Zr{(Me2pz)2Si(Me)NAr}Cl3] (1), a highly active pre-catalyst for ethylene polymerisation; a more general and versatile route to N3 donor heteroscorpionate compounds was achieved via the protio ligand (Me2pz)2CHSi(Me)2N(H)iPr for which neutral and cationic ...

Dense W and W-Zr composites reinforced with Sc2O3 particles were produced through powder metallurgy and subsequent spark plasma sintering (SPS) at 1700 °C and 58 MPa. Results showed that the W-1vol.%Zr/2vol.%Sc2O3 composites exhibited optimal performance with the best relative density of up to 98.93% and high Vickers microhardness of approximately 583 Hv. The thermal conductivity of W-Zr/Sc2O3 ...