BACKGROUND The pathogenesis of total joint replacement failure is multifactorial. One hypothesis suggests that corrosion and wear of alloys result in metal ion release, which may then cause sensitization and even implant failure, owing to the acquired immune reactivity. OBJECTIVES To assess cobalt, nickel and chromium(VI) release from, and the metal composition of, failed metal-on-ethylene to...

Lithium-ion batteries provide the development of a clean and sustainable society based on renewable energy resources. To further enhance density reduce cost batteries, innovations electrode materials high-performance nickel-/cobalt-free are necessary. In this review, lithium-excess manganese-based with layered/rock salt oxides/oxyfluorides emphasized because their potential ability to be utiliz...

Nickel(II) of 0.04-1.4 mmol dm-3 and palladium(II) of 1-32 μmol dm-3 were extracted quantitatively into chloroform from the aqueous phases containing 0.2 mol dm-3 and 2 mmol dm-3 0,0'-diethyldithiophosphate(dtp-) at pH 1-7 and 1-13, and determined at 385 nm (c=8.4x 102 mol-' dm3 cm-') and 298 nm (e=2.9x 104 mol-' dm3 cm-'), respectively. The determination of nickel was affected with many divers...

Nickel-Based Superalloys Nickel-based superalloys are used in the manufacturing of aircraft engine parts and widely studied for their outstanding mechanical resistance at high temperatures. In article number 2100414, Jean Almoric co-workers carried out a chemical characterization very resolution (<30nm) γ-γ' alloy allowing semi-quantification γ' precipitates. This is achieved with an innovative...

In the layered ferromagnetic/ferroelectric structures in form of cobalt, nickel or permendur layer on a ferroelectric substrate lead zirconate titanate obtained by ion-beam sputtering --- deposition, relative strains due to mismatch crystal lattices mating materials at metal/substrate in-terface make more noticeable contribution magnetoelectric response than those associated both with magnetost...

Processes for recycling lithium ion batteries (LIB), in particular complex chemistries such as those containing nickel-manganese-cobalt oxide (NMC) cathodes are hindered by tradeoffs between capital cost, process sustainability, and materials recovery. Most metal separations primary secondary production of critical elements rely on anion exchange chemistries. Herein, we explore the application ...

Nickel-titanium archwires in orthodontic wires have nickel ion releases. The use toothpaste and saliva immersion time may cause its This study aims to prove the difference interaction between variations towards amount of releases at nickel-titanium archwires. was an experimental research with a post-test only control group design. Twenty seven were divided into three groups, i.e., K group, whic...

Chiral nickel(ii) bis(dithiolene) complexes based on the mono- and bis-methylated ligands me-dddt dm-dddt are Mott insulators or band gap semiconductors, with their conductivity modulated by counter-ion number of stereogenic centres.

The title compound, [Ni(C(8)H(8)NO(2))(2)], is a centrosymmetric mononuclear nickel(II) complex. The Ni(II) ion, lying on an inversion centre, is four-coordinated in a square-planar geometry by two phenolate O and two imine N atoms from two symmetry-related 2-imino-methyl-5-methoxy-phenolate ligands. In the crystal, mol-ecules are linked into corrugated layers parallel to (100) by N-H⋯O hydroge...

Disorder-driven degradation phenomena, such as structural phase transformations and surface reconstructions, can significantly reduce the lifetime of Li-ion batteries, especially those with nickel-rich layered-oxide cathodes. We develop a general free energy model for ion-intercalation materials function degree disorder, which represents density defects in host crystal. The accounts defect core...