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Article
Publication date: 2 August 2019

Majid Hosseinzadeh, Abdol Hamid Jafari, Rouhollah Mousavi and Mojtaba Esmailzadeh

In this study, electrochemical deposition method which have cheaper equipment than thermal spraying methods and is available for the production of composite coatings were used.

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Abstract

Purpose

In this study, electrochemical deposition method which have cheaper equipment than thermal spraying methods and is available for the production of composite coatings were used.

Design/methodology/approach

Composite coatings were electrodeposited from a Watts's bath solution in which the suspended Cr3C2-NiCr particles were dispersed in the bath solution during deposition. Potentiodynamic polarization and electrochemical impedance spectroscopy techniques have been used to evaluate the corrosion resistance of the composite coating in the 3.5 Wt.% NaCl solution.

Findings

It was found that the submicron Cr3C2-NiCr particles distributed uniformly in the coating and depend on the current density of deposition, different amount of particles can be incorporated in the coating. The results showed that the corrosion resistance of the Ni/ Cr3C2-NiCr composite coatings is more comparable to the pure nickel coating.

Originality/value

Production of Ni-base composite coating from an electrolytic bath containing Cr3C2-NiCr particles is possible via electrodeposition.

Details

Anti-Corrosion Methods and Materials, vol. 66 no. 4
Type: Research Article
ISSN: 0003-5599

Keywords

Article
Publication date: 9 August 2019

Rouhollah Mousavi, Mohammad Ebrahim Bahrololoom and Flavio Deflorian

In this research, the microstructure and corrosion behavior of Ni-Mo alloy coatings obtained from a citrate bath solution containing sodium dodecyl sulfate (SDS) as an…

Abstract

Purpose

In this research, the microstructure and corrosion behavior of Ni-Mo alloy coatings obtained from a citrate bath solution containing sodium dodecyl sulfate (SDS) as an anionic surfactant, and cetyltrimethylammonium bromide (CTAB) as a cationic surfactant, have been investigated.

Design/methodology/approach

For this purpose, the Cathodic polarization curves were plotted using a potentiostat/galvanostat set. Scanning electron microscopy and energy dispersive spectroscopy were, respectively, used to investigate the morphology and chemical composition of the coatings.

Findings

The results of the corrosion test showed that the corrosion resistance of the coatings obtained from electroplating bath only containing CTAB surfactant was deteriorated. On the other hand, SDS anionic surfactant positively affected on the corrosion resistance of the coatings when it was added to the electroplating bath.

Originality/value

For this purpose, the Cathodic polarization curves were plotted using a potentiostat/galvanostat set. Scanning electron microscopy and energy dispersive spectroscopy were respectively used to investigate the morphology and chemical composition of the coatings.

Details

Anti-Corrosion Methods and Materials, vol. 66 no. 5
Type: Research Article
ISSN: 0003-5599

Keywords

Article
Publication date: 13 November 2017

Bijan Bidabad

This paper aims to define a new system to facilitate obtaining reliable collaterals and guarantees for financial activities from tangible assets through a new financial…

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Abstract

Purpose

This paper aims to define a new system to facilitate obtaining reliable collaterals and guarantees for financial activities from tangible assets through a new financial instrument of “guarantee certificates”.

Design/methodology/approach

This system makes it possible to securitize movable/immovable assets into negotiable paper lots, namely, “guarantee certificates”. Each lot of these certificates can be used as a guarantee or collateral for any guarantee-backed activity in banks or other activities.

Findings

The mortgage securitization system (MSS) securitizes tangible assets and provides necessary collaterals and guarantees to be used for different purposes. The operations are carried out through notary offices. This system, as a complementary system of the Rastin Banking system, can also be executed separately.

Research limitations/implications

The system is novel and needs to be more elaborated for further practical development and adjustment. Although this paper deals with only securitization of tangible assets, research can also be extended to securitization of intangible assets, through new institutions and rules.

Practical implications

Many properties and assets can be used as guarantees for observing obligations. The available ways for changing (especially large) properties into small guarantees are not easy and efficient. The MSS was designed to break large assets into many guarantee (certificate) lots and reduce the formalities of mortgaging and its transfer.

Social implications

This system provides reliance and security upon collaterals and conditions for fast claim-clearing and low formalities without time-consuming adjudication processes.

Originality/value

Complementary systems in Rastin Banking have been designed to solve prevailing problems of banking and financial activities. The MSS was designed to provide necessary arrangements for transforming assets into negotiable papers.

Details

International Journal of Law and Management, vol. 59 no. 6
Type: Research Article
ISSN: 1754-243X

Keywords

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