Untitled

Левашов, Е. А.; Malochkin, O. V.; Kudryashov, A. E.; Gammel, F.; Suchentrunk, R.

doi:10.1023/a:1023033907477

Cited by 8 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Different methods of preactivation of charge mixtures provide the increase in the reactivity and dispersity of powders as well as formation of laminated nanosize structures. All this in complex influences the kinetics and thermodynamics of the combustion process and, consequently, the reaction products [1,10,11].…”

Section: Introductionsupporting

confidence: 91%

See 1 more Smart Citation

SH-Synthesis of Nanostructured Materials Based on SiO2+Al+CaSiO3 with Wollastonite after Ultrasonic Treatment

Mansurov¹,

Mofa²,

Sadykov³

et al. 2013

Eur Chem Tech J

View full text Add to dashboard Cite

This paper presents the results of a complex study of the structure and properties of wollastonite after ultrasonic treatment (UST) and its effect on the development of the process of technological combustion (SHS) of systems based on quartz, the structure and properties of synthesized composition materials. Ultrasonic treatment of wollastonite of the brand FW100 was carried out in water and 5% aqueous solutions of different alcohols and acids at 40 and 100 kHz as well as at simultaneous UST action of 40 and 100 kHz during 20-60 minutes. In the presence of different organic modifying additives during UST there takes place not only milling of wollastonite particles and erosion of their surface but also different complex structural changes on the surface of particles and their capsulation into colloidal conglomerates. All the structural changes taking place in wollastonite particles under the conditions of UST result also in the change of the chemical activity of the material, which effects the thermal characteristics of the combustion process (SH-synthesis) of the systems containing UST modified wollastonite in the charge mixture. It is stated that, when introducing wollastonite after ultrasonic treatment into SHS-charge, there takes place a more complete conversion of initial components in the combustion process. The greatest amount of corundum and nanocrystalline silicon is formed, when using wollastonite treated in water, aqueous solution of polyvinyl alcohol and acetylsalicylic acid. The synthesized samples are characterized by high stable values of strength (up to 73 MPa) and indices of electric insulation properties.

show abstract

Section: Introductionsupporting

confidence: 91%

“…technological combustion, nanopowders of oxide compounds are introduced into the composition of a charge mixture [1]. Mechanochemical treatment in mills with a dynamic action is one of the methods allowing to obtain ultra disperse powders with particles of a nanostructure [2].…”

Section: Introductionmentioning

confidence: 99%

SH-Synthesis of Nanostructured Materials Based on SiO2+Al+CaSiO3 with Wollastonite after Ultrasonic Treatment

Mansurov¹,

Mofa²,

Sadykov³

et al. 2013

Eur Chem Tech J

View full text Add to dashboard Cite

show abstract

“…Similar results have been reported for syntheses of Al 2 O 3 ± TiAl ± Ti 3 Al composites 103 as well as of other inorganic powders doped with nanosized particles (ZrO 2 , Al 2 O 3 , W, WC, NbC, etc.). 104,105 The formation of nanosized particles as combustion products have also been confirmed in a series of SHS processes 19,26,80,103,105,106 utilising nanosized reactants (e.g., Y 2 O 3 , ZrO 2 , TiO 2 , C, etc.) (Table 5).…”

Section: Self-propagating High-temperature Synthesis In Electric and ...mentioning

confidence: 80%

Self-propagating high-temperature synthesis of nanomaterials

Sytschev¹,

Мержанов²

2004

Russ. Chem. Rev.

View full text Add to dashboard Cite

The results of recent studies in the field of self-propagat-The results of recent studies in the field of self-propagating high-temperature synthesis of nanosized materials are sur-ing high-temperature synthesis of nanosized materials are surveyed. The possibilities of the synthesis of nanomaterials in the veyed. The possibilities of the synthesis of nanomaterials in the combustion mode are demonstrated. Examples of applications of combustion mode are demonstrated. Examples of applications of the self-propagating high-temperature synthesis for the prepara-the self-propagating high-temperature synthesis for the preparation of nanopowders, films and compact materials are given. The tion of nanopowders, films and compact materials are given. The bibliography includes 116 references bibliography includes 116 references. .

show abstract

“…Various compositions of electrode materials are available to increase the surface hardness and wear resistance, such as metal alloys [11,12], extra hard compounds (classic hard alloys based on carbides, borides, and nitrides of W, Ti, Zr, Cr, including nanostructured ones) [13,14], the addition of ceramic nanoparticles (e.g., ZrO 2 , Al 2 O 3 , NbC, Si 3 N 4 , W, WC, and WC-Co) to the composition of electrode materials leads to a modification in their structure and improvement of the physicomechanical properties [15].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Wear and Corrosion of Novel Electrospark and Electrospark–Electrochemical Hybrid Coatings Based on Carbon Steels

et al. 2023

View full text Add to dashboard Cite

The electrospark deposition (ESD) technique is a low-heat-input process that has great potential for coating applications and the restoration of damaged high-value parts. Carbon steels are commonly used as a substrate material for ESD coatings. However, we demonstrated that carbon steels could be used successfully as the electrode tool for the ESD process. Furthermore, ESD coatings commonly have a high as–deposited roughness. In view of this, in order to reduce the roughness of the ESD coatings, electrodeposition as a tool to alter surface morphology was investigated. Hence, the micro-leveling power of several electrolytes for Ni, Fe-W, Fe, and Cr electrodeposition were evaluated. The maximum leveling effect was detected for Ni electroplated from the Watts electrolyte. Thus, the novel hybrid coatings based on an ESD layer and a subsequent layer of electrodeposited Ni were obtained. ESD layers were obtained by using the following electrode tools as anodes: several types of carbon steels (St20, St30, and St45), alloys T15K6 (WC + TiC + Co), CuNiZn; and NiCr. The morphology and structure of the obtained hybrid coatings with an electrodeposited Ni top-layer was analyzed and compared to ESD coatings from the point of view of their wear and corrosion behavior. The wear rate of the novel ESD coatings based on carbon steels was comparable with coatings obtained using the NiCr electrode tool. Moreover, for all the studied cases, the corrosion resistance of the hybrid coatings was higher than for their ESD counterparts and close to electrolytic chromium.

show abstract

Untitled

Cited by 8 publications

References 0 publications

SH-Synthesis of Nanostructured Materials Based on SiO2+Al+CaSiO3 with Wollastonite after Ultrasonic Treatment

SH-Synthesis of Nanostructured Materials Based on SiO2+Al+CaSiO3 with Wollastonite after Ultrasonic Treatment

Self-propagating high-temperature synthesis of nanomaterials

Synthesis, Wear and Corrosion of Novel Electrospark and Electrospark–Electrochemical Hybrid Coatings Based on Carbon Steels

Contact Info

Product

Resources

About