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The role of ions in plasma catalytic carbon nanotube growth: A review

Erik C. Neyts

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 2, Pages 154-162 doi: 10.1007/s11705-015-1515-5

Abstract: While it is well-known that the plasma-enhanced catalytic chemical vapor deposition (PECVD) of carbon nanotubes (CNTs) offers a number of advantages over thermal CVD, the influence of the various individual contributing factors is not well understood. Especially the role of ions is unclear, since ions in plasmas are generally associated with sputtering rather than with growing a material. Even so, various studies have demonstrated the beneficial effects of ion bombardment during the growth of CNTs. This review looks at the role of the ions in plasma-enhanced CNT growth as deduced from both experimental and simulation studies. Specific attention is paid to the beneficial effects of ion bombardment. Based on the available literature, it can be concluded that ions can be either beneficial or detrimental for carbon nanotube growth, depending on the exact conditions and the control over the growth process.

Keywords： plasma-enhanced chemical vapor deposition (PECVD) carbon nanotube (CNT) ion bombardment defect healing

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Autogenous healing mechanism of cement-based materials

Frontiers of Structural and Civil Engineering Pages 948-963 doi: 10.1007/s11709-023-0960-3

Abstract: Autogenous self-healing is the innate and fundamental repair capability of cement-based materials forhealing cracks.Many researchers have investigated factors that influence autogenous healing.However, systematic research on the autogenous healing mechanism of cement-based materials is lacking, and the maximum healing capacity was assessed.

Keywords： autogenous healing cement-based materials healing mechanism aggregation effect

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Effect of calcium lactate on compressive strength and self-healing of cracks in microbial concrete

Kunamineni VIJAY, Meena MURMU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3, Pages 515-525 doi: 10.1007/s11709-018-0494-2

Abstract: This paper presents the effect on compressive strength and self-healing capability of bacterial concreteThe influence of this addition on compressive strength, self-healing capability of cracks is highlightedcalcium lactate in bio-concrete which is quite impressive for improving the compressive strength and self-healing

Keywords： calcium lactate bacillus subtilis compressive strength self-healing of cracks

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Anticorrosive composite self-healing coating enabled by solar irradiation

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 9, Pages 1355-1366 doi: 10.1007/s11705-022-2147-1

Abstract: Self-healing coatings for long-term corrosion protection have received much interest in recent years.However, most self-healing coatings rely on healants released from microcapsules, dynamic bonds, shapememory, or thermoplastic materials, which generally suffer from limited healing times or harsh conditionsfor self-healing, such as high temperature and UV radiation.Herein, we present a composite coating with a self-healing function under easily accessible sunlight

Keywords： self-healing coating phase transition photothermal effect corrosion protection

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Acoustic fault signal extraction via the line-defect phononic crystals

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1, Pages 10-10 doi: 10.1007/s11465-021-0666-y

Abstract: In this paper, 2D line-defect phononic crystals (PCs) consisting of periodic acrylic tubes with slitThe defect band, namely, the formed resonance band of line-defect PCs enables the incident acoustic waveThe effectiveness of weak harmonic and periodic impulse signal detection via line-defect PCs are investigatedAll the numerical and experimental results indicate that line-defect PCs can be well used for extracting

Keywords： phononic crystals line-defect fault signal extraction acoustic enhancement

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Microbial self-healing of cracks in cement-based materials and its influencing factors

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0986-6

Abstract: This review discusses the feasibility of using microbial self-healing agents for crack healing., which prolongs the self-healing time.modeling, and ultrasonic method can be employed to identify the self-healing effect of cracks.Moreover, the self-healing mechanism is systematically analyzed.The difficulties and future development of self-healing cracks were analyzed.

Keywords： cement-based materials cracks microbial self-healing agent mechanism intelligent building materials

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Research progress of defect-engineered UiO-66(Zr) MOFs for photocatalytic hydrogen production

Frontiers in Energy 2021, Volume 15, Issue 3, Pages 656-666 doi: 10.1007/s11708-021-0765-9

Abstract: In recent years, defect-engineered Zr-based UiO-66 metal-organic frameworks (UiO-66(Zr) metal-organicIt is extremely challenging to introduce defect sites in the synthesis of MOFs to regulate the physicochemicalrecent research results of synthesis methods, characterization technologies, and application fields of defect-engineered

Keywords： defect engineering metal-organic frameworks UiO-66 photocatalysis

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The defect-length effect in corrosion detection with magnetic method for bridge cables

Qiwei ZHANG, Rongya XIN

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4, Pages 662-671 doi: 10.1007/s11709-018-0512-4

Abstract: The magnetic flux (MF) examination shows great potential to detect the corrosion defect, or loss of metallicAn LMA defect in steel cables can be measured accurately when it is longer than a certain length.In this study, the effect of defect length on the MF examination for corrosion detection of bridge cablesAn original analytical model to quantify the influence of defect length is proposed based on the equivalentThen, MF examination experiments are performed on a series of cable models with different defect lengths

Keywords： bridge cable corrosion detection defect length MF examination quantitative evaluation

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Self-healing polyamide reverse osmosis membranes with temperature-responsive intelligent nanocontainers

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9, Pages 1183-1195 doi: 10.1007/s11705-022-2287-3

Abstract: the chlorination of membranes with temperature response and release inner materials to achieve self-healing

Keywords： reverse osmosis nanocontainer self-healing chlorine resistance water permeability

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Computational modeling of fracture in capsule-based self-healing concrete: A 3D study

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6, Pages 1337-1346 doi: 10.1007/s11709-021-0781-1

Abstract: efficient packing algorithm is employed to create the mesoscale model of heterogeneous capsule-based self-healingmodel provides an effective tool for predicting the complex fracture response of capsule-based self-healing

Keywords： 3D fracture self-healing concrete spherical cohesive elements heterogeneous

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Plasma-enabled healing of graphene nano-platelets layer

Xiuqi Fang, Carles Corbella, Denis B. Zolotukhin, Michael Keidar

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 2, Pages 350-359 doi: 10.1007/s11705-018-1787-7

Abstract: full regeneration of the structural and morphological properties of the samples has proven that this healing

Keywords： graphene platelet networks anodic arc discharge plasma healing scanning electron microscopy Raman spectroscopy

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Computational model generation and RVE design of self-healing concrete

Md. Shahriar QUAYUM,Xiaoying ZHUANG,Timon RABCZUK

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4, Pages 383-396 doi: 10.1007/s11709-015-0320-z

Abstract: Self-healing concrete (SHC) is a heterogeneous material which has different constituents as cement matrix, sand and healing agent carrying capsules.Computational homogenization tool is applied in this paper to evaluate the effective properties of self-healing

Keywords： homogenization self-healing concrete (SHC) representative volume element multiscale modelling

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Single-electromagnet levitation for density measurement and defect detection

Yuhan JIA, Peng ZHAO, Jun XIE, Xuechun ZHANG, Hongwei ZHOU, Jianzhong FU

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1, Pages 186-195 doi: 10.1007/s11465-020-0608-0

Abstract: single-electromagnet levitation device has a large measuring range and can realize accurate density measurement and defect

Keywords： single-electromagnet electromagnetic levitation density measurement defect detection

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The effects of mismatch fracture properties in encapsulation-based self-healing concrete using cohesive-zone

Luthfi Muhammad MAULUDIN, Chahmi OUCIF, Timon RABCZUK

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3, Pages 792-801 doi: 10.1007/s11709-020-0629-0

Abstract: Finite element analysis is developed to simulate the breakage of capsule in capsule-based self-healingbut valuable tool to assist the experimentalists in designing appropriate capsule materials for self-healing

Keywords： self-healing concrete interfacial zone capsule materials cohesive elements fracture maps

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Preparation, with graphene, of novel biomimetic self-healing microcapsules with high thermal stability

Frontiers of Structural and Civil Engineering Pages 1188-1198 doi: 10.1007/s11709-023-0027-5

Abstract: stability and electrical conductivity inspired by the bionic thermal insulation of birds’ feathers for self-healingThe self-healing capability of bitumen sharply increases, providing benefit to the effect of microcapsules

Keywords： graphene microcapsule bitumen heat insulation conductivity