Ultrasound-assisted electrodeposition and synthesis of alloys and composite materials: A review

Ultrasonic-assisted electrodeposition of Ni-Cu/TiN composite coating from sulphate-citrate bath: Structural and electrochemical properties.

Structural and corrosion behavior of Ni-Cu and Ni-Cu/ZrO2 composite coating electrodeposited from sulphate-citrate bath at low Cu concentration with additives

For Al-air batteries, it is important to develop efficient and economical anodes. In this study, the effect of aluminum anodes treated with copper by chemical and electrochemical process to battery performance is investigated. The surface characterization of this electrode is performed with a scanning electron microscope. Electrochemical impedance spectroscopy and anodic polarization techniques are used. The hydrogen gas evolution and corrosion rate tests, the constant-voltage discharge tests, and the galvanostatic anodic dissolution tests are carried out. The anode utilizations are calculated. It is seen that the copper improves the anode efficiency by promoting the dissolution of aluminum according to battery reaction. However, it protects the aluminum from corrosion reaction by forming a barrier film without any restriction of battery reaction. It is understood from this work that the most efficient, economical, and practical method for copper deposition to electrode is the electrochemical deposition of copper. Furthermore, the 7075 alloy (Alloy/Cu) is more stable for both the electrochemical and chemical deposition process.

Copper-deposited aluminum anode for aluminum-air battery

A challenge to succeed the electroplating of nanocomposite Ni–Cr alloy onto porous substrate under ultrasonic waves and from a continuous flow titanium nanofluids

A Critical Review on the Microstructure and Mechanical Properties Correlation of Additively Manufactured Nickel-based Superalloys

Cu-Ni thin films were electroplated from a bath containing fixed amount of Ni and three different concentration of copper in order to make Cu:Ni molar ratio of 1:10, 1:15 and 1:20 in static and ultrasonic condition. Electrochemical characterization i.e. cyclic voltammetry (CV) was done to know the reduction potential range for Cu-Ni co-deposition. Corrosion study revealed that films synthesized under static condition had better corrosion protective behavior as compared to films in ultrasonic condition. X-ray diffraction (XRD) patterns were recorded and it showed that alloying was better in presence of ultrasound. Surface morphology was examined by scanning electron microscopy, atomic force microscopy and composition analysis was done by energy dispersive spectroscopy (EDS) studies. Both morphology and composition showed a strong dependence on bath concentration and ultrasonic irradiation. EDS analysis showed that the films are Ni rich in static condition and Cu rich in presence of ultrasound. Hardness was tested by Micro-Vickers hardness tester where films in presence of ultrasound were found to have better hardness value due to refined grain size. Thickness and residual stress of the films were measured by Stylus surface profilometer. Film thickness varied from 1.98–2.16 μm in static condition which got increased to 2.69–3.59 μm in presence of sonication for equal period of deposition. Residual stress analysis reported a stress value ranging from 172.43 to 273.18 GPa in static condition which showed a remarkable decrease to 35.25–82.34 GPa in ultrasonic condition.

Physicochemical and corrosion properties of sono-electrodeposited Cu-Ni thin films

Processing-Microstructure-Property Correlation in Thermo-Mechanically Processed Ti-6al-4v Alloys: A Comparative Study between Conventional and Novel Approaches

Designing of Novel Microstructure in 2nd and 3rd Generation Advanced Intermetallic Tial Alloys: Effect of Alloy Addition and Phase Transformation on Mechanical Properties

Effective Microstructural Homogenization and its Influence on the Localized Mechanical Properties of Single Crystal Ni-Based Superalloy, Cmsx-4

Prekshya Nath

Papers

A Critical Review on the Microstructure and Mechanical Properties Correlation of Additively Manufactured Nickel-based Superalloys

Physicochemical and corrosion properties of sono-electrodeposited Cu-Ni thin films

Processing-Microstructure-Property Correlation in Thermo-Mechanically Processed Ti-6al-4v Alloys: A Comparative Study between Conventional and Novel Approaches

Designing of Novel Microstructure in 2nd and 3rd Generation Advanced Intermetallic Tial Alloys: Effect of Alloy Addition and Phase Transformation on Mechanical Properties

Effective Microstructural Homogenization and its Influence on the Localized Mechanical Properties of Single Crystal Ni-Based Superalloy, Cmsx-4