Wound dressings have been designed based on cellulose acetate encapsulated with different concentrations of chromium oxide (Cr2O3) and titanium oxide (TiO2) with/without graphene oxide (GO).
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Objectives: This study aimed to evaluate the effect of different concentrations of titanium dioxide (TiO 2) and copper oxide (CuO) nanoparticles on the water sorption and solubility of heat-cured polymethyl methacrylate (PMMA). Materials and methods: Fifty disc-shaped specimens (10 × 2 mm) of heat-cured PMMA were prepared and divided into five groups …
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concentration of species is attained followed by nucleation and growth phases [12]. The size and shape of particles is greatly influenced by solution pH, temperature and concentration of salt [16].
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Fig. 1 also includes an XRD scan of the as-cast material, which contains two sets of BCC peaks. The first, with lattice parameter 3.15 ± 0.01 Å, corresponds to the …
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Downloadable! Titanium (Ti) is an attractive material, abundant in nature and possessing superior mechanical and chemical properties. However, its widespread use is significantly hampered by the strong affinity between titanium and oxygen (O), resulting in elevated manufacturing costs during the refining, melting, and casting processes. The current …
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In pure titanium, the lattice parameter a = 0.331 nm at 900°C and the thermal expansion coefficient κ T = 13.8×10-6 °C-1 over the temperature range 900°C to 1000°C. The solution of hydrogen in beta titanium is seen to expand the lattice but it has little effect on the thermal expansion coefficient.
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Multifunctional titanium dioxide nanoparticles biofabricated via phytosynthetic route using extracts of Cola nitida: antimicrobial, dye degradation, antioxidant and anticoagulant activities
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At an optimum concentration of 0.5 M TPAOH, open and connected hierarchical mesopores and macropores were created in the resulting …
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DOI: 10.1016/J.JPOWSOUR.2010.03.071 Corpus ID: 95832032; Effect of minor nickel alloying with zinc on the electrochemical and corrosion behavior of zinc in alkaline solution @article{ElSayed2010EffectOM, title={Effect of minor nickel alloying with zinc on the electrochemical and corrosion behavior of zinc in alkaline solution}, …
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For instance, high TPAOH concentration is necessary to induce titanium re-insertion into framework position and to create inter-connected open meso/macropore in TS-1 with low Si/Ti ratio.
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Processing titanium ore includes several stages for extracting titanium and turning it into a final product. Our company has developed 2 main concepts for dressing …
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Fig. 1 (a) shows the OCP curves of TA1 in the simulated PEM water electrolyser anode environment with different fluoride ion concentrations (0 M, 0.00025 M, 0.0005 M, 0.001 M and 0.005 M). In general, the OCP trend is a useful indicator to assess the corrosion tendency and thermodynamic of materials in solution environments.
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Temperature, time and acid concentration significantly affect the dissolution of titanium and impurities in ilmenite. The addition of either iron powder or chloride/sulfate salts affects ...
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The fabrication of microstructures with high efficiency and accuracy on titanium alloys presents significant challenges due to stringent quality requirements. …
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Titanium nitride is a metallic compound characterized by a high melting point, ultrahardness, good electrical and thermal conductivity, and high resistance to corrosion. 1, 2 Because of its superior properties, TiN is widely used in various industrial applications such as coating material or diffusion barrier and adhesion layers in silicon …
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Although the ocean has a vast Li reserve of around 231.4 trillion tonnes, currently, it is not economically viable to recover Li from saltwater due to its low concentration in seawater of approximately 0.178 mg/L [14].However, in most cases, Salt Lake brine has a higher Li concentration (250 to 1600 mg/L [1, 12]) than …
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A. A. Baba, A. A. Folahan, A. A. Olayide, I. Lateef, B. B. Rafiu, K. G. Malay and R. S. Abdul, "Simultaneous Recovery of Total Iron and Titanium from Ilmenite Ore ...
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National regulatory agencies have recommended measurement of circulating cobalt and chromium concentrations in metal-on-metal bearing symptomatic total hip arthroplasty patients. However, the clinical utility of serum titanium (Ti) measurements is less understood due to wide variations in reported values and methodology.
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In relation with this, McKinley [33] fabricated titanium samples with various compositions and evaluated the independent effect of oxygen concentration in pure titanium on its hardness. At oxygen concentrations of 0.12% and 0.20%, the Brinell hardness number was 130 and 170, respectively, corresponding approximately to …
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By using agar-well diffusion method the antibacterial activity of Titanium Dioxide Nanoparticles (TiO2NPs) against S. pneumoniae was determined in three concentrations: 20, 30, 40 I¼g/ml. TiO2NPs exhibit significant antibacterial efficacy in all concentrations while the biggest diameter of inhibition zone was measured in the …
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TB6 titanium alloy has the characteristics of high strength, high fatigue life, and low stiffness, making it a favored choice for critical load-bearing components in helicopters and large passenger aircraft. However, it is difficult to realize efficient and high-quality processing of TB6 by using traditional mechanical cutting technology because of …
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2nd Stage Concentration Process: The concentrated ore from the chrome ore jig machine or spiral chute separator will go to the chrome ore shaking table concentration machine for final concentration, which can get high-grade chrome ore concentrate. Shaking table is a good concentration effect mining equipment for chrome ore processing plant.
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Titanium(I V) isopropox ide Calcinated at 550°C 13-20 XRF,XRD,EDX, TEM,XPS [34] TiO 2-lanathal Titanylsul phate 600°C, pH 7 7 XRD,TEM, [35] Al2O3– SiC aluminiu m nitrate …
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It was found that the Si/Ti ratio of TS-1 and the concentration of TPAOH affect the mesopore volume, structure and the position of titanium species. This technique …
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It is well-known that the body centered cubic (bcc) crystal in titanium alloys reaches its stability limit as the electron-to-atom (e/a) ratio of the alloy drops down to ∼4.24.This critical value, however, is much higher than that of a multifunctional bcc type alloy (e/a = 4.15).Here we demonstrate that a nano-scale concentration modulation …
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The phenolic content present in leaf extract can easily donate electron to hydrogen peroxide and thereby neutralising it into water (Lateef et al. 2017). The hydrogen peroxide-scavenging assay at different …
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AgNPs solution of different concentrations (0, 0.15, 0.175, 0.20 and 0.35 wt% AgNPs) were prepared via green synthesis involving reduction of silver nitrate using extract of cobwebs. Each paint ...
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The!material!used!for!the!testing!was!grade!2,!commercially!pure!titanium,!0.020"!(0.508mm)!and! 0.035"!(0.889mm)!in!thickness.!It!was!purchased!with!amill!finish ...
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Under lower TPAOH concentration (i.e. 0.05-0.4 M), only closed meso-/macropores (grooves and hollow cavities) can be created in the TS-1 crystals. At an optimum concentration of 0.5 M TPAOH, open and connected hierarchical mesopores and macropores were created in the resulting TS-1 zeolites.
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For instance, high TPAOH concentration is necessary to induce titanium re-insertion into framework position and to create inter-connected open meso/macropore in TS-1 with low Si/Ti ratio. On the contrary, TPAOH treatment even at high concentration …
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The OCP of titanium varies with HBr concentration from -0.3 V Ag/AgCI in the absence of HBr, to more than 0.4 V Ag/AgCI at HBr 1.0 M. This phenomenon is …
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A certain mass of TiCl 3 and AlCl 3· 6 H 2 O was weighed and dissolved in ultrapure water, controlling the Ti/Al substance amount ratios to 0/10, 1/9, 2/8, 3/7, 5/5, 9/1, and 10/0, respectively.Then 0.1 mol/L NaOH solution was added drop by drop, and the pH of the mixed solution was adjusted to 6.0. Ti-Al LDHs with different substance-to-volume ratios …
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Adsorption of metals (Pb, Cd, Cu, Ni, Zn) to TiO(2) nanoparticles and bulk particles was examined for use as a contaminant removal substrate as a function of particle size, sorbent concentration ...
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Selectively and efficiently capturing trace titanium dioxide nanoparticles (TiO 2 NPs) in environmental waters is a prerequisite for their determination to understand their occurrence, behavior and effects in the environment. Herein, we report the determination of TiO 2 NPs by using magnetic microextraction with phosphorylated Fe 3 O 4 as a …
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Jiao, Yilai, Adedigba, Abdul-Lateef, Dummer, Nicholas F. ORCID: https: ... For instance, high TPAOH concentration is necessary to induce titanium re-insertion into framework position and to create inter-connected open meso/macropore in TS-1 with low Si/Ti ratio. On the contrary, TPAOH treatment even at high concentration was found to be ...
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Occurrence and distribution of titanium ore in nature. Titanium is the 9th most abundant element in the Earth's crust, occurring primarily in the form of minerals known as titanium ores. The most common titanium minerals are ilmenite (FeTiO3), rutile (TiO2), and leucoxene (a weathered form of ilmenite). These minerals are widely …
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