Effect of organic additives on the magnetic properties of electrodeposited CoNiP hard magnetic films

Emerson, R. N.; Kennady, C. Joseph; Ganesan, S.

doi:10.1016/j.tsf.2006.09.034

Cited by 14 publications

(8 citation statements)

References 9 publications

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“…The pH value of electrolytic solution was fixed as 6.0 by mixing ammonia solution and electroplating process was carried out with current density 3 mA/cm 2 . The copper or cathode was carefully removed from the bath after 15 min and dried for few minutes [22][23] . The surface nature of Ni-Fe-W films was characterized by Scanning Electron Microscope.…”

Section: Methodsmentioning

confidence: 99%

Effect of Electrolytic Bath Temperature on Magnetic and Structural Properties of Electrodeposited Ni Fe W Nano Crystalline Thin films

M.¹,

Ramalingam²

2017

Orient. J. Chem

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Nickel, iron films are vitally used in new generation recording heads, designing of microelectro mechanical devices and magnetic random access memory. The addition of tungsten (W) can enhance magnetic and mechanical properties of NiFe thin films. Electrodeposited Ni-Fe-W films were prepared at different temperature (30, 50, 70 and 90 0 C) and they were subjected tomorphological, structural, magnetic and mechanical characterization analysis. Nickel content was maximum as 61.41 wt% at 90 o C. The tungsten content increased when electrolytic bath temperature was increased. Ni-Fe-W films were bright and uniformly coated on the surface. Also the deposits of Ni-Fe-W films were in nano scale and the average crystalline size was around 22 nm. Thin films prepared at high temperature exhibited a high saturation magnetization and low coercivity. The micro hardness of Ni-Fe-W was 221 VHN at 90 o C.

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Section: Methodsmentioning

confidence: 99%

Effect of Electrolytic Bath Temperature on Magnetic and Structural Properties of Electrodeposited Ni Fe W Nano Crystalline Thin films

M.¹,

Ramalingam²

2017

Orient. J. Chem

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“…When phosphorus supplemented magnetic alloys were deposited with organic additives like urea, thiourea it adlib the magnetic properties. [13,14] Hence the present work is keen to prepare CoNiWP alloy film on copper substrate at different current density using electro deposition method. The influence of phosphorous on the properties of electrodeposited films was discussed by studying their structural, morphological, and magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

Influence of Phosphorous in Magnetic and Corrosion Properties of Electrodeposited Cobalt based Multinary Alloys

R¹

2019

IJRASET

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In recent past magnetic alloys grabs more attention among the researchers because of their interesting magnetic behavior and potential applications. Cobalt based alloys were immensely studied with several alloy combinations, in order to yield an advanced magnetic properties for the applications of sensors. Driven by the existing literatures we study here the influence of phosphorous on magnetic behavior of CoNiWP films. This paper highly focuses the comparative investigation of CoNiWP alloys deposited at different current densities and how the presence of phosphorous influences the physical properties in the deposited films. The structural and morphological properties were confirmed by using X-ray diffractogram and FE-SEM micrographs. Ferromagnetic behavior of the films was confirmed using Vibrating sample magnetometer. Magnetoresistance of the film was studied with the help of four probe method and found to be having a stable GMR behavior. Corrosion behavior of the sample was studied using weight loss method and found to be having a corrosion resistance depend on magnetic elements (Co and Ni) in the film. CoNiWP films deposited at higher current density shows a considerable variation in both magnetic and corrosive properties.

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“…It may act as a leveling agent [10,11] due to the selective adsorption of urea molecules on the specific crystal planes of metal electrode [8,12], but it is also a complexing agent for metal ions [9]. Earlier, a saturated water solution of urea oxalate was used as an electrolyte for the electrodeposition of Mn, as well as metals which were difficult to deposit from aqueous baths (technetium and actinium) [13].…”

Section: Introductionmentioning

confidence: 99%

Manganese electrodeposition from urea-rich electrolyte

Vuruna

Bučko

Radović

et al. 2015

Maced. J. Chem. Chem. Eng.

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Pure manganese coatings were prepared on the steel (AISI 4340) electrode by a non-conventional electrodeposition method, in the presence of 8 mol dm -3 of urea as a plating additive. The influence of urea on the electrodeposition of Mn was investigated by cyclic voltammetry. The morphology of the coatings was studied by scanning electron microscopy (SEM), and their elemental composition by energy dispersive X-ray spectrometry (EDS). The results showed that the presence of urea in the solution increased the current efficiency for metal reduction for around 20%, and depending on the applied deposition potential, urea may act either as a complexing agent or through the adsorption mechanism. Moreover, urea improves the characteristics of Mn deposits, i.e. their adhesiveness, porosity, compactness, and appearance. Except for oxygen, as part of the Mn corrosion product at the coating surface, no carbon or nitrogen incorporation was detected in the deposits by EDS.Keywords: urea; electrodeposition; Mn coating; morphology ЕЛЕКТРОДЕПОЗИЦИЈА НА МАНГАН ОД ЕЛЕКТРОЛИТ БОГАТ СО УРЕАПриготвени е филм од чист манган врз челична (AISI 4340) електрода со конвенционален метод на електродепозиција во присуство на 8 mol dm -3 уреа како адитив. Влијанието на уреата врз електродепозицијата на Mn беше испитувано со циклична волтаметрија. Морфологијата на филмот беше студирана со скенирачка електронска микроскопија (SEM), а елементарниот состав со енергетски дисперзивна спектрометрија со Х-зраци (EDS). Резултатите покажаа дека присуството на уреа во растворот ја зголемува ефикасноста на струјата со намалување на металот за околу 20% и во зависност од потенцијалот на депозиција уреата може да дејствува или како комплексирачко средство или преку атсорпционен механизам. Исто така, уреата ги подобрува карактеристиките на депозитите на Mn, т.е. нивната атхезивност, порозност, компактност и изглед. Освен кислород како дел од корозивниот продукт на Mn на површината на филмот, со EDS не беа детектирани инкорпорирани депозити на јаглерод или азот.

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Effect of organic additives on the magnetic properties of electrodeposited CoNiP hard magnetic films

Cited by 14 publications

References 9 publications

Effect of Electrolytic Bath Temperature on Magnetic and Structural Properties of Electrodeposited Ni Fe W Nano Crystalline Thin films

Effect of Electrolytic Bath Temperature on Magnetic and Structural Properties of Electrodeposited Ni Fe W Nano Crystalline Thin films

Influence of Phosphorous in Magnetic and Corrosion Properties of Electrodeposited Cobalt based Multinary Alloys

Manganese electrodeposition from urea-rich electrolyte

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