This work aims at evaluating the potential of nano-sized zinc borate as substitution of boric acid for thermal degradation and gaseous products in expandable graphite based intumescent fire retardant coating IFRC systems. The thermal degradation and pyrolysis of intumescent flame retardant coati...

New glasses of zinc lithium borate doped with terbium oxide were synthesized by high temperature solid-state reaction. The amorphous nature of the glasses was confirmed using x-ray diffraction analysis (XRD). Thermoluminescence (TL) response of pure zinc lithium borate (ZLB) and zinc lithium bor...

All known oxide glasses are inherently brittle, but their resistance to damage such as hardness and crack resistance varies strongly as a function of the chemical composition. The damage resistance is in turn related to the underlying deformation mechanism, which is at least partly related to th...

Hydrocarbon intumescent coatings are an efficient means to passive fire protection of steel structures in high-risk environments such as petrochemical plants and offshore platforms. In the present study, the effects of zinc borate on the performance of hydrocarbon intumescent coatings were inves...

Aluminum nitride (AlN) ceramics were prepared by hot-pressing with Y(NO3)3·6H2O as sintering additive. The mechanical properties including flexural strength, Vickers’ hardness, and fracture toughness were studied. The relative density and mechanical property of the monolithic AlN were improved...

Neodymium doped transparent yttrium aluminum garnet ceramics with yttrium excess and deficient (1 to 3 mol%) compositions were fabricated. The samples with stoichiometric and 1.0 mol% yttrium excess are transparent. However, 1.0 mol% yttrium deficiency samples are opaque. The structural and comp...

Yttrium aluminum garnet (YAG) nano-fibers were obtained by electrospinning using aluminum and yttrium nitrates as initial materials. Coordination agent and spinning additive influences on sol spinnability were analyzed. A stable spinning precursor sol was prepared using citric acid as a coordina...

Concerns regarding the adverse effects of long-term exposure to low levels of rare earth elements (REEs) from foods on human health have arisen in recent years. Nevertheless, no official acceptable daily intake (ADI) has yet been proposed for either total REEs or individual REE. In accordance wi...

The yttrium nitrate effect on FeSiCr alloy insulating layer thickness and magnetic properties after annealing treatment is investigated in this study. The results showed that a continuous chromium oxide layer was observed on the FeSiCr alloy powder surface after annealing at 800 °C. The additio...

ObjectiveThe aim of this study was to assess the effects of yttrium nitrate on neurobehavioral development in Sprague-Dawley rats.

Two 3 mol% partially stabilised zirconia (P-SZ) samples suitable for the SOFC market were manufactured from solutions through to ceramics using a method similar to a known industrial process. The only difference in preparation of the two 3 mol% P-SZ samples was the pH of precipitation which was ...

Four novel di-nuclear yttrium catalysts coordinated by bis(benzotriazole iminophenolate) (BiIBTP) ligands have been synthesized and structurally characterized. The one-pot procedure of BiIBTP pro-ligand with [Y(NO3)3.6H2O] (1.0 equiv.) and 2-nitrophenol derivative (1.0 equiv.) in the presence of...

The reactivity of the yttrium trichloride complex [Cl3Y{(μ3-NH)3Ti3(η5-C5Me5)3(μ3-N)}] (2) with a variety of main-group metal cyclopentadienyl reagents [M(C5H3R1R2)] (M = Li, Na, K, Tl) or [Mg(C5H5)2] has been investigated. Treatment of 2 with one equivalent of [Na(C5H5)] or [K(C5H4SiMe3)] gi...

White xerogel powder of yttrium tungstate-chloride was synthesized, and its photoluminescence properties were investigated. Under the excitation of 254 nm, the xerogel phosphor exhibits emission ranging from 300 to 650 nm. This luminescent spectrum is identified as two emission bands of 300–400...

The influence of concentration and added chloride salts on the solution speciation of zirconyl chloride solutions, and the precipitate formed upon addition of aqueous ammonia, has been investigated. Crystalline zirconium oxychloride octahydrate samples available on an industrial scale were inves...

To improve the electron transporting and suppress the charge recombination at the interface of TiO2/perovskite, the smooth and compact yttrium(Y)-doped TiO2 compact layers were successfully prepared via a hydrolysis-pyrolysis method. The influences of Y-doped on the microstructure, crystal phase...

The extraction of yttrium from chloride medium with a mixture of 2-ethylhexyl phosphonic acid mono-(2-ethylhexyl) ester (HEHEHP, H2A2) and bis(2,4,4-trimethylpentyl) phosphinic acid (Cyanex272, H2B2) in kerosene has been studied. The extraction mechanism was determined by the methods of slope an...

Yttrium doped zinc oxide (ZnO) nanowires prepared on seedless indium tin oxide (ITO) substrates were used for nanostructured bulk heterojunction organic solar cells (OSCs). Without patterning by a mask, the optimized areal density of ZnO nanowires decreased the reflection of incident light impin...

In recent years, the surface modification of photoanodes for photoelectrochemical water splitting with passivation overlayers has attracted considerable attention. In this respect, a novel, easy and simple methodology to introduce ytterbium oxide as an overlayer on hematite nanorod electrodes is...

This study demonstrates for the first time the possibility of selective separation of heavy, middle and light lanthanide ions, represented by Yb(III), Gd(III) and La(III), using a polymer inclusion membrane (PIM) composed of 45 wt% di-(2-ethylhexyl) phosphoric acid (D2EHPA) and 55 wt% poly(vinyl...