Interplay between counter-surface chemistry and mechanical activation in mechanochemical removal of N-faced GaN surface in humid ambient

Guo, Jian; Xiao, Chen; Gao, Jian; Li, Gengzhuo; Wu, Hualong; Chen, Lei; Qian, Linmao

doi:10.1016/j.triboint.2021.107004

Cited by 53 publications

(9 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Leishmaniasis is one of the most important infectious diseases in the world with 30,000 deaths annually 54 , which leads to the death by damaging macrophage cells, spleen, bone marrow, and liver. With the advancement of technology and the inadequacy of current therapeutic drugs, the application of nanostructures with unique properties and plant extracts with antimicrobial activities has recently attracted the attention of researchers 55 . Today, various nanostructures with different structures, suitable permeability, targeting properties, low toxicity, lack of resistance, high stability, and cost-effectiveness properties are widely deployed in the treatment of different diseases 54 , 56 .…”

Section: Discussionmentioning

confidence: 99%

Biosynthesis of spinel nickel ferrite nanowhiskers and their biomedical applications

Alijani

Iravani

Pourseyedi

et al. 2021

Sci Rep

View full text Add to dashboard Cite

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.

show abstract

Section: Discussionmentioning

confidence: 99%

Biosynthesis of spinel nickel ferrite nanowhiskers and their biomedical applications

Alijani

Iravani

Pourseyedi

et al. 2021

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The results suggested that the mechanochemical activation effect is larger for Si (100) and Si (111) than Si (110) which is chemically more reactive than the other two surfaces. CMP of precorroded Lu 2 O 3 laser crystals [347], CaF 2 crystal [348], SiC substrate [349], and N-faced GaN surface [350] were researched experimentally. A new kind of electrical enhanced photocatalysis polishing slurry was developed and tested for polishing monocrystalline silicon carbide wafer [351].…”

Section: Wear In Metalworking and Polishing Processesmentioning

confidence: 99%

A review of advances in tribology in 2020–2021

Meng

et al. 2022

Friction

View full text Add to dashboard Cite

Around 1,000 peer-reviewed papers were selected from 3,450 articles published during 2020–2021, and reviewed as the representative advances in tribology research worldwide. The survey highlights the development in lubrication, wear and surface engineering, biotribology, high temperature tribology, and computational tribology, providing a show window of the achievements of recent fundamental and application researches in the field of tribology.

show abstract

“…Although the absolute value of E a cannot be obtained without determining A, this expression physically represents the self-driven force of the mechanochemical reactions that occurs at the tribological interface when the external mechanical interaction is negligible. Based on the computational results regarding the physical meaning of the V * , the value is described as the minimum amount of change in molecular volume to initiate chemical reactions of that specific molecule by shear and compressive stress, reflecting the degree of the required shear-induced structural deformation to rupture Ga-N or Ga-O-N bond via mechanochemical reactions (Yeon et al, 2017;Guo et al, 2021b). The above results demonstrate that less external mechanical activation is required to initiate the mechanochemical atomic attrition for oxidized GaN surface compared with the pristine GaN surface without oxide layer.…”

Section: Influencing Mechanism Of Oxide Layer On the Mechanochemical Removal Of Gan Surfacementioning

confidence: 99%

Effect of Native Oxide Layer on Mechanochemical Reaction at the GaN–Al2O3 Interface

et al. 2021

Self Cite

View full text Add to dashboard Cite

Mechanochemical reactions at the gallium nitride-alumina (GaN–Al2O3) interface at nanoscale offer a significant beneficial reference for the high-efficiency and low-destruction ultra-precision machining on GaN surface. Here, the mechanochemical reactions on oxide-free and oxidized GaN surfaces rubbed by the Al2O3 nanoasperity as a function of the ambient humidity were studied. Experimental results reveal that oxidized GaN exhibits a higher mechanochemical removal rate than that of oxide-free GaN over the relative humidity range of 3–80%. The mechanical activation in the mechanochemical reactions at the GaN–Al2O3 interface is well-described by the mechanically-assisted Arrhenius-type kinetics model. The analysis indicates that less external mechanical activation energy is required to initiate the mechanochemical atomic attrition on the oxidized GaN surface compared with the oxide-free GaN surface. These results may not only gain a deep understanding of the mechanochemical removal mechanism of GaN but also provide the basic knowledge for the optimization of the oxidation-assisted ultra-precision machining.

show abstract

Interplay between counter-surface chemistry and mechanical activation in mechanochemical removal of N-faced GaN surface in humid ambient

Cited by 53 publications

References 55 publications

Biosynthesis of spinel nickel ferrite nanowhiskers and their biomedical applications

Biosynthesis of spinel nickel ferrite nanowhiskers and their biomedical applications

A review of advances in tribology in 2020–2021

Effect of Native Oxide Layer on Mechanochemical Reaction at the GaN–Al2O3 Interface

Contact Info

Product

Resources

About