Preparation of SiO2 coating by sol-gel method, to improve high-temperature corrosion resistance of a γ-TiAl phase based alloy

Małecka, J.; Krzak, Justyna

doi:10.2478/v10077-012-0011-6

Cited by 7 publications

(9 citation statements)

References 15 publications

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“…According to the literature, all oxide-based coatings, such as SiO 2 , ZrO 2 , Al 2 O 3 , TiO 2 , are characterised by low chemical reactivity which can confer substrate protection properties to metallic substrates [ 11 , 13 , 43 ].…”

Section: Sol-gel Methods and The Coatingsmentioning

confidence: 99%

“…Interestingly, layers with evenly distributed pores in their entire volume show poor scratch and abrasion resistance. According to the literature [ 10 , 11 ], surface layers characterised by an established porosity gradient, namely, coatings with a graded rather than a homogenous porosity throughout their entire thickness, show increased scratch resistance. Surfaces layers can be obtained by sol-gel synthesis using, among others, silica precursors [ 47 ].…”

Section: Sol-gel Methods and The Coatingsmentioning

confidence: 99%

“…There is a wealth of published data providing information regarding the activation, functionalization and protection of metallic surfaces [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 ]. Such surface modifications are always associated with the need to adapt the surface properties of metallic substrates to a working environment or conditions without a radical change in the metallic material itself.…”

Section: Introductionmentioning

confidence: 99%

“…Such surface modifications are always associated with the need to adapt the surface properties of metallic substrates to a working environment or conditions without a radical change in the metallic material itself. Surface modifications may be applied by different methods such as for surface protection, e.g., protective sol-gel coatings [ 1 , 2 , 5 , 6 , 11 , 12 , 13 ], for surface activation, e.g., [ 14 , 15 ] and for surface functionalisation, e.g., hard coatings [ 3 , 4 , 6 , 10 , 11 , 16 ]. With regards to the types of materials used for surface modification, regardless of the modification process utilised, it is possible to use ceramics, composites, glass, metals, polymers, or, in a more advanced manner, materials such as cermet [ 17 ], nanocomposites [ 18 ], bioglass [ 19 ], oxides [ 20 ] or organic-inorganic hybrid materials [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

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Functionalizable Sol-Gel Silica Coatings for Corrosion Mitigation

et al. 2018

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Corrosion is constantly a major problem of the world economy in the field of metal products, metal processing and other areas that utilise metals. Previously used compounds utilizing hexavalent chromium were amongst the most effective materials for corrosion protection but regulations have been recently introduced that forbid their use. Consequently, there is a huge drive by engineers, technologists and scientists from different disciplines focused on searching a new, more effective and environmentally-friendly means of corrosion protection. One novel group of materials with the potential to solve metal protection problems are sol-gel thin films, which are increasingly interesting as mitigation corrosion barriers. These environmentally-friendly and easy-to-obtain coatings have the promise to be an effective alternative to hexavalent chromium compounds using for anti-corrosion industrial coatings. In this review the authors present a range of different solutions for slow down the corrosion processes of metallic substrates by using the oxides and doped oxides obtained by the sol-gel method. Examples of techniques used to the sol-gel coating examinations, in terms of anti-corrosion protection, are also presented.

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Section: Sol-gel Methods and The Coatingsmentioning

confidence: 99%

Section: Sol-gel Methods and The Coatingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Functionalizable Sol-Gel Silica Coatings for Corrosion Mitigation

et al. 2018

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“…This fabrication involved two steps: to create TiO 2 coating via a sol-gel process, and then to anneal at 500°C for 1 h [15]. In order to improve oxidation resistance, Małecka et al used the sol-gel method to obtain a SiO 2 coating on Ti-46Al-7Nb-0.7Cr-0.1Si-0.2Ni alloy [42]. Moreover, sol-gel nanostructured Al 2 O 3 coating can be fabricated on mild steel by hydrolysis and polycondensation of aluminum isopropoxide and catalyzed by HNO 3 [36].…”

Section: Fabrication Of Ceramic Coating On Metallic Materialsmentioning

confidence: 99%

Ceramics Coated Metallic Materials: Methods, Properties and Applications

Zang¹,

Xun²

2021

Advanced Ceramic Materials

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Surface coating can allow the bulk materials to remain unchanged, while the surface functionality is engineered to afford a more wanted characteristic. Ceramic coatings are considered as ideal coatings on metal which can significantly improve the surface properties of metal materials including anti-fouling, self-cleaning, corrosion resistance, wear resistance, oil/water separation and biocompatibility. Furthermore, various techniques have been utilized to fabricate a range of different ceramic coatings with more desirable properties on metal materials, which make the materials widely used in service environment. This chapter focus will be on the types, fabrication methods, surface properties and applications of ceramics coated metal materials.

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Tribological properties of bismaleimide alloy blend with a novel silicon dioxide-containing benzoxazine-monomer

Jia

Yang

Liu

et al. 2021

Plastics, Rubber and Composites

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To overcome the limited tribological properties of bismaleimide (BMI) resin, a kind of novel organic-inorganic hybrid silicon dioxide nanoparticles with terminal functional amidogen groups (SiO 2 -NH 2 ) was prepared via a sol-gel process. The SiO 2 -NH 2 was chosen as raw materials to react with polyformaldehyde and aniline, and the silicon dioxide-containing benzoxazine-monomer (SiO 2 -BOZ) can be obtained via a solvent process. The new prepared SiO 2 -BOZ were then as modified phase to modify BMI to prepare the SiO 2 -BOZ/BMI composites. With 15.0 wt-% SiO 2 -BOZ, the flexural strength and impact strength of SiO 2 -BOZ/BMI composites can reached the maximum value of 166.12 MPa and 17.93 kJ m −2 , respectively, while the wear rate of SiO 2 -BOZ/BMI composites is only 3.9 × 10 −6 mm 3 N −1 m −1 . The enhanced tribological properties of SiO 2 -BOZ/BMI can be attributed to the improvement of its heat resistance and mechanical properties, which can increase the capacity of the SiO 2 -BOZ/BMI to withstand external forces and heat during the friction process.

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Preparation of SiO2 coating by sol-gel method, to improve high-temperature corrosion resistance of a γ-TiAl phase based alloy

Cited by 7 publications

References 15 publications

Functionalizable Sol-Gel Silica Coatings for Corrosion Mitigation

Functionalizable Sol-Gel Silica Coatings for Corrosion Mitigation

Ceramics Coated Metallic Materials: Methods, Properties and Applications

Tribological properties of bismaleimide alloy blend with a novel silicon dioxide-containing benzoxazine-monomer

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