Electrodeposited Ni100-XFex Thin Films on Copper Substrates

2014 ◽  
Vol 605 ◽  
pp. 665-668
Author(s):  
Saci Messaadi ◽  
Mosbah Daamouche ◽  
Hadria Medouer

Due to their soft operational capacity and magnetic properties, Iron Nickel alloys are of great commercial interest. A simple and inexpensive technique for the production of Nickel-Iron thin films is electrodeposition. A lot of physical and chemical parameters (substrates, concentration, current density, potential, temperature, pH, agents of addition......) can significantly influence the physical properties, such as homogeneity, bright, structure and morphology of the Ni-Fe deposits. This paper presents a study into some characteristics of Ni-Fe deposits on Copper substrates. All the electrochemical experiments were performed in a three electrode cell in which the volume of the bath was 150ml. Electrodeposition of Ni-Fe was carried out potensiostatically from a Brenner type electrolytic bath in [0.1 aqueous solutions of Ni-Fe. The applied potential is-1.20V and the deposition time varies from 10 min to 30 min for all experiments.

Alloy Digest ◽  
1982 ◽  
Vol 31 (6) ◽  

Abstract The 50 Nickel-Iron Alloy is recommended for glass-to-metal seals. It is used with such glasses as Types 0120 and 9010 that have higher than normal thermal expansion and with certain ceramics. It is used in a number of applications where expansion must be almost linear to 1000 F. The 50 Nickel-Iron Alloy has relatively good mechanical properties; in fact, at room temperature it has a tensile strength of 80,000 psi and an elongation of 35%. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-276. Producer or source: Mills that produce iron-nickel alloys.


2014 ◽  
Vol 605 ◽  
pp. 661-664
Author(s):  
Hadria Medouer ◽  
Chahira Benyekken ◽  
Saci Messaadi

Elecrodeposited Ni-P alloy thin films have been the subject of extended investigations, since the pioneering works of Brenner et al, in the late 1940s. It is well known, that the physical and chemical properties of the Ni-P deposit composition are strongly influenced by the preparation conditions. In our experimental procedure, we have used a Parstat 2253 potensiostat equipped with Power-Suite software. All the electrochemical experiments were performed in a three electrode cell in which the volume of the bath was 150ml, in this experimental technique, we can measure one or more of three parameters: the potential (V), current (i), and time (t). The aim of our work consists to study the nucleation and growth process and given morphology and composition of electrodeposited Nix-P100-xthin films on Copper substrates. For this purpose, cyclic voltametry and chnonoamperomaty have been used in order to determine the previous cited properties of thin films Ni-P, [0.10 of NaPH2O2solutions. The chrnoamperogramms can be interpreted by the use of one of three models called: Growth mode (Me layer by layer formation); Franck Van der Merwe, FM model, Growth mode 3D (Me island formation on the top of predeposited), 2D Meads overlayers on substrat and Stranski-Krastanov; (SK model).


Alloy Digest ◽  
1982 ◽  
Vol 31 (8) ◽  

Abstract The 42 Nickel-Iron alloy has the lowest expansivity of the Iron-Nickel alloys that are commonly used for glass-sealing applications. Its thermal expansion closely matches the 1075 glass and it is sometimes used for sealing action with the 0120 and 0010 glasses. It is made close metallurgical control to provide uniformity of performance. Its many uses include industrial lamps, ceramic-to-glass seals, and sealed-beam automobile headlamps. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-66. Producer or source: Iron-nickel alloy mills.


2003 ◽  
Vol 18 (1) ◽  
pp. 180-187 ◽  
Author(s):  
H. Yin ◽  
G. M. Chow

Iron-nickel-based powders and thin films were synthesized by an electroless polyol method. The growth process as a function of deposition time was studied. The Fe concentration of deposited films and precipitated powders were similar and independent of deposition time. The metalorganic intermediates were present in powders and their amount decreased with time. The morphological investigations suggested that 60 min was the optimum deposition time to deposit dense films with particles of narrow size distribution. In addition, the films deposited at 60 min also possessed the highest saturation magnetization due to a more ordered atomic environment of nickel. The as-deposited Fe was apparently oxidized in the films.


Author(s):  
Minakshi Chaudhary ◽  
Yogesh Hase ◽  
Ashwini Punde ◽  
Pratibha Shinde ◽  
Ashish Waghmare ◽  
...  

: Thin films of PbS were prepared onto glass substrates by using a simple and cost effective CBD method. Influence of deposition time on structural, morphology and optical properties have been investigated systematically. The XRD analysis revealed that PbS films are polycrystalline with preferred orientation in (200) direction. Enhancement in crystallinity and PbS crystallite size has been observed with increase in deposition time. Formation of single phase PbS thin films has been further confirmed by Raman spectroscopy. The surface morphology analysis revealed the formation of prismatic and pebble-like PbS particles and with increase in deposition time these PbS particles are separated from each other without secondary growth. The data obtained from the EDX spectra shows the formation of high-quality but slightly sulfur rich PbS thin films over the entire range of deposition time studied. All films show increase in absorption with increase in deposition time and a strong absorption in the visible and sub-band gap regime of NIR range of the spectrum with red shift in band edge. The optical band gap shows decreasing trend, as deposition time increases but it is higher than the band gap of bulk PbS.


Molecules ◽  
2021 ◽  
Vol 26 (16) ◽  
pp. 4731
Author(s):  
Changkun Liu ◽  
Dan Liao ◽  
Fuqing Ma ◽  
Zenan Huang ◽  
Ji’an Liu ◽  
...  

In this study, the surface-initiated atom transfer radical polymerization (SI-ATRP) technique and electroless deposition of silver (Ag) were used to prepare a novel multi-functional cotton (Cotton-Ag), possessing both conductive and antibacterial behaviors. It was found that the optimal electroless deposition time was 20 min for a weight gain of 40.4%. The physical and chemical properties of Cotton-Ag were investigated. It was found that Cotton-Ag was conductive and showed much lower electrical resistance, compared to the pristine cotton. The antibacterial properties of Cotton-Ag were also explored, and high antibacterial activity against both Escherichia coli and Staphylococcus aureus was observed.


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