Mechanical Properties and Growth Mechanism of TiB2-TiC/Fe Composite Coating Fabricated in Situ by Laser Cladding

Yang, Tianwei; Wang, Zhaohui; Tan, Shihai; Guo, Fu

doi:10.1007/s10443-020-09832-4

Cited by 11 publications

(3 citation statements)

References 28 publications

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“…Nowadays, research on bio-composite materials, natural clay, vegetable fibers, sisal, flax, and wood fibers are used to reinforce the cementitious matrix to improve the mechanical properties, accelerate the production of calcium silicates, promote the hydration [11][12][13] and optimize the acoustic and thermal properties of composite materials based on a cementitious matrix [14,15]. Based on porous structures, suspensions of volcanic ash and natural clay particles have been the subject of several studies [16,17].…”

Section: Introductionmentioning

confidence: 99%

Effects of Cationic Surfactant on Fresh and Hardened Properties of Cement-Based Mortar

Zormati¹,

Aloulou²,

Sammouda³

2023

Journal of Renewable Materials

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The objective of this study is to analyze the effects of using surfactant (CTAB) and cellulose nanofibers (NFC) as an admixture in cement mortars. We examined composite properties as porosity, compression energy, thermal conductivity and hydration. The results showed that with the addition of 0.7% by weight of NFC per emulsion in the presence of a cationic surfactant (CTAB). The new material produced presented a dry porosity between 4.7% and 4.4%, compressive strength between 9.8 and 22.9 MPa, and thermal conductivity between 0.95 and 2.25 W•m −1 •K −1 . Thus we show better mechanical and thermal performance than that traditional Portland cement mortar with a density similar. In addition, the mortar made by emulsion of ordinary portland cement, cellulose nanofiber and organophilic clay (OC) treated with cetyltrimethylammonium bromide (CTAB) obtained has good resistance under high temperature and water, as well as excellent thermal insulation performance under high temperature and humidity conditions. This study verified that the presence of NFC promotes hydration, leading to the production of more calcium silicate and portlandite gel.

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Section: Introductionmentioning

confidence: 99%

Effects of Cationic Surfactant on Fresh and Hardened Properties of Cement-Based Mortar

Zormati¹,

Aloulou²,

Sammouda³

2023

Journal of Renewable Materials

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“…Especially, silica materials have good thermal insulation properties. However, low mechanical [4] resistance. This is the reason that different procedures were created to improve physico-chemical properties of the wood fibers Sand in Construction with clay and cement [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Thermal Conductivity and Mechanical Properties of Organo-Clay-Wood Fiber in Cement-Based Mortar

Aloulou¹,

Sammouda²

2022

Sand in Construction

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This paper orientated to study the compressive resistance and thermal conductivity of compressed and stabilized clay blocks in the cement matrix. The effect of the content of wood fiber (WF) became studied as a reinforcement material in cement mortars. The porosity, compressive energy, thermal conductivity and composite of cement hydration had been investigated. The addition of NFC suggests a very good pore reduction, and the fine result becomes acquired with the emulsion of a combination incorporating 2%wt of WF inside the presence of an anionic surfactant (SDBS). The results revealed that used in this study were a mix of water with ordinary portland cement and organo-clay (OC) modified with Cetyltrimethylammonium bromide at water-to-solid ratios 1%. The effect depending on w/s ratio of OC used samples with cement substitution for organoclay showed from 2% higher compressive strength results than that of the plain cement paste and a decrease of the thermal conductivity by addition of 2%wt of WF from 2.26 to 0.8 W/m °C. It was also observed that with increasing w/s ratio higher amount of cement can be replaced by OC. These analyses have revealed that the presence of WF promoted the hydration, by producing more portlandite and calcium silicate gel.

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“…Q235 steel is widely used in all aspects of life due to its low price, easy processing, excellent comprehensive performance, and other advantages. , It is usually applied directly without heat treatment, so the corrosion resistance and friction resistance are very low. , The coating method has the advantages of low price, simple operation, and good chemical stability; it is one of the most commonly used methods to protect Q235 steel. − Waterborne epoxy (WEP) coating meets the requirements of environmental friendliness and corrosion resistance; it has the potential to replace organic epoxy in the future. , However, due to different dispersants and hydrophilic groups contained in waterborne epoxy resins, holes and defects are likely to develop during film formation. It is easily infiltrated by corrosion factors such as Cl – , O 2– , SO 4 2– , etc.…”

Section: Introductionmentioning

confidence: 99%

Improving Corrosion Protection and Friction Resistance of Q235 Steel by Combining Noncovalent Action and Rotating Coating Method

Lao

Ren

et al. 2021

ACS Omega

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Developing waterborne epoxy (WEP) coatings with excellent corrosion resistance and tribological properties is a key aspect to solve the damage of Q235 steel. In this work, perylene bisimide (PBI) derivatives dispersion graphene (GR) were prepared by a π–π stacking, the highly orientated PBI0.5%/GR0.5%/WEP coating will be prepared by the rotating coating method. Especially, the impedance value reached about 109 Ω·cm2 when the PBI and GR ratio is 1:1. The impedance value of PBI0.5%/GR0.5%/WEP coating increased by 3 orders of magnitude compared with that of pure WEP coating (106 Ω·cm2). Additionally, the coefficient of friction of the coatings was 0.33; compared with that of WEP, the coefficient of friction decreased by 48%, and the wear resistance increased by 87.6%. The results show that the PBI0.5%/GR0.5%/WEP coatings exhibited excellent corrosion resistance and wear resistance properties due to the good dispersion and high orientation of PBI/GR in WEP. It is anticipated that our current work would guide the ongoing efforts to develop a more efficient method to overcome the poor dispersion of GR in waterborne epoxy resin and provide a green coating with excellent corrosion resistance and wear resistance properties.

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Mechanical Properties and Growth Mechanism of TiB2-TiC/Fe Composite Coating Fabricated in Situ by Laser Cladding

Cited by 11 publications

References 28 publications

Effects of Cationic Surfactant on Fresh and Hardened Properties of Cement-Based Mortar

Effects of Cationic Surfactant on Fresh and Hardened Properties of Cement-Based Mortar

Thermal Conductivity and Mechanical Properties of Organo-Clay-Wood Fiber in Cement-Based Mortar

Improving Corrosion Protection and Friction Resistance of Q235 Steel by Combining Noncovalent Action and Rotating Coating Method

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