Control on nanostructured quaternary Ti–Al–O–B composite synthesized via electrospinning method, from nanoparticles to nanowhiskers

Ghadimi, Zohreh; Esfahani, Hamid; Mazaheri, Yousef

doi:10.1007/s10971-021-05487-0

Cited by 11 publications

(3 citation statements)

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“…The results of the analysis of B1s peaks were consistent with the studies presented above and confirmed them in general. All B1s spectra obtained have shown peaks centred at ~193.3 eV (Figure 3g), attributable to B-O [20]. For more intensive spectra obtained at surfaces boronized at 900-950 • C, a peak centred at ~187.8 eV was observed, as well as a minor peak at ~190.6 eV (Figure 3h), which, based on the results reported earlier [19], may be assigned to B-O-Al bonds.…”

Section: Characterisation Of the Alumina Surface By Sem Eds Xps And X...supporting

confidence: 61%

“…For the non-modified Al 2 O 3 surface, two peaks' components were observed after deconvolution (Figure 3e)-the peak at ~531.2 eV ascribed to O in Al 2 O 3 and the peak at ~532.0 eV typically assigned to OH − , chemisorbed oxygen or dissociated oxygen [17]. For boronized samples, one more peak at higher binding energy ~533.1 eV appeared (Figure 3f), which, according to [20], may be attributed to O-B bonds. The results of the analysis of B1s peaks were consistent with the studies presented above and confirmed them in general.…”

Section: Characterisation Of the Alumina Surface By Sem Eds Xps And X...mentioning

confidence: 87%

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Effect of Thermochemical Boronizing of Alumina Surface on the Borate Crystals Growth and Interaction with Nickel and Nickel Alloy

Škamat

Lebedev²,

Černašėjus³

et al. 2022

Crystals

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Wettability at the metal-ceramic interface is highly important for the development of modern composite materials. Poor wettability by metal melts restricts the use of alumina in protective metal matrix composite (MMC) coatings. In the present experimental study, the possibility to modify wetting properties of alumina by thermochemical surface boronizing was investigated. The results of SEM, EDS, XRD and XPS characterisation of surfaces revealed the formation of oxygen containing Al–B compounds identified as aluminium borates (Al18B4O33/Al4B2O9); no signs of non-oxide Al–B compounds were observed. The shape of the single splats deposited on the boronized alumina surface by the thermal spray and re-melted in the furnace revealed that significant wetting improvement by self-fluxing nickel alloy did not occur. However, the improvement of adhesion between the nickel/nickel alloy and Al2O3 surface was obtained due to formation of an intermediate layer consisting of B, O, Al and Si between the metal and ceramic surfaces at the presence of some silicon at the modified surfaces. The presented study demonstrates that the thermochemical boronizing of alumina in amorphous boron medium is a simple method to obtain a thin aluminium borate layer consisting of oriented nano-rod-like crystals, whose growing direction is predetermined by the orientation of the alumina grains’ faces at surface.

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Section: Characterisation Of the Alumina Surface By Sem Eds Xps And X...supporting

confidence: 61%

Section: Characterisation Of the Alumina Surface By Sem Eds Xps And X...mentioning

confidence: 87%

Effect of Thermochemical Boronizing of Alumina Surface on the Borate Crystals Growth and Interaction with Nickel and Nickel Alloy

Škamat

Lebedev²,

Černašėjus³

et al. 2022

Crystals

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“…For the fabrication of nanowhiskers, various synthesis approaches have been reported, including microwave 39 , carbo-thermal reduction 40 , and electrospinning 41 techniques. However, one of the important drawbacks with these methods is the dependence on expensive equipment or energy consumption, which is directly or indirectly a threat to environmental health 42 .…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis of spinel nickel ferrite nanowhiskers and their biomedical applications

Alijani

Iravani

Pourseyedi

et al. 2021

Sci Rep

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Greener methods for the synthesis of various nanostructures with well-organized characteristics and biomedical applicability have demonstrated several advantages, including simplicity, low toxicity, cost-effectiveness, and eco-friendliness. Spinel nickel ferrite (NiFe2O4) nanowhiskers with rod-like structures were synthesized using a simple and green method; these nanostructures were evaluated by X-ray diffraction analysis, transmission electron microscopy, scanning electron microscopy, and X-ray energy diffraction spectroscopy. Additionally, the prepared nanowhiskers could significantly reduce the survival of Leishmania major promastigotes, at a concentration of 500 μg/mL; the survival of promastigotes was reduced to ≃ 26%. According to the results obtained from MTT test (in vitro), it can be proposed that further studies should be conducted to evaluate anti-leishmaniasis activity of these types of nanowhiskers in animal models.

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Advancements in Photocatalytic Applications of Metal Ferrites for Water Pollution Remediation: A Focus on Biosynthesis and Innovations

et al. 2023

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Control on nanostructured quaternary Ti–Al–O–B composite synthesized via electrospinning method, from nanoparticles to nanowhiskers

Cited by 11 publications

References 50 publications

Effect of Thermochemical Boronizing of Alumina Surface on the Borate Crystals Growth and Interaction with Nickel and Nickel Alloy

Effect of Thermochemical Boronizing of Alumina Surface on the Borate Crystals Growth and Interaction with Nickel and Nickel Alloy

Biosynthesis of spinel nickel ferrite nanowhiskers and their biomedical applications

Advancements in Photocatalytic Applications of Metal Ferrites for Water Pollution Remediation: A Focus on Biosynthesis and Innovations

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