optimization of electroless ni-zn-p deposition

Wpływ obrbki cieplnej na strukturę i właściwości

Research has sought to obtaining the composite zinc-nickel coatings with increased content of nickel by Ni powder addition and changing the mechanism of metal ions co-deposition The Zn-Ni-P+Ni composite coatings obtained on the substrate steel (0H18N9) from the ammonia bath with the Ni powder and sodium hypophosphite addition

Optimization of Technology of Zn

A group of orthogonal text is arranged and carried out to study the effect on electroplating technology of Zn-Ni-P alloy the range analysis is employed to distinguish the influent degree of factors include in this text the optimum technology of Zn - Ni -P alloy

Journal of Chinese Society for Corrosion and protection

Abstract The Ni-P/nano-Al 2 O 3 composite coating on Q235 steel was prepared by pulse electroplating the composite coatings were heat-treated at temperature of 200-400 ℃ The microstructure of the composite coatings was identified by X-ray diffraction the

معرفی پوشش آلیاژی نیکل

2020-5-31Microstructural Characterization and Corrosion Behavior of Electroless Ni-Zn-P Thin Films Journal of Metallurgy 2014 2- Veeraraghavan B Kim H Popov B (2004) Optimization of electroless Ni–Zn–P deposition process: experimental study

Bath optimization

Taguchi's method demonstrated that the basic Ni-P bath having [glycerol] = 20 mL L-1 c d = 4 0 A dm-2 and pH = 8 0 as ideal for developing coatings of highest micro-hardness and thickness Experimental data revealed that both [glycerol] and c d have close dependency on thickness and micro-hardness of coating compared to pH of the solution

Electroless Ni

Particles Gradation Optimization of Blasting Rockfill Based on Fractal Theory Preparation of Polyurethane Solid Tire with Low Heat Generating p 478 Electroless Ni-P-Zn Alloy Deposition on Surface of Low Carbon Steel p 482 Pressurized Microwave-Assisted Extraction of Isoflavones from Soy The optimal process conditions for the Ni-Zn-P

Synthesis and Properties of Electrodeposited Ni

79] and tin [80] into Ni-P have resulted in improvement of properties such as mechanical thermal stability corrosion resistance solderability magnetic and electrical properties are superior to those of electroless Ni–P deposits Although Ni-X-P alloy coatings have been studied extensively but Ni-X-B

Optimization of Ni

2020-4-28Ni-P coating is well-known for its excellent corrosion and wear resistance The electrochemical and mechanical properties of these coatings can be improved by incorporating Zn The electrochemical properties of Ni-P-Zn coatings are highly related to bath parameters In this research the effect of Ni-P-Zn electroless bath parameters such as concentration of reactants pH level and deposition

Synthesis and performance of Zn–Ni–P thin films

2015-2-26Among these ternary Zn–Ni–P alloys received special consideration since an addition of 1%–5% P can considerably enhance the corrosion resistance of the Zn–Ni alloys The deposition of anticorrosive Zn–Ni–P thin films can be performed both by electrochemical deposition and by chemical plating (no current deposition − electroless)

Corrosion Science and Protetion Technology

2020-4-30PERFORMANCE OF ELECTROLESS Ni-P COATING ON W-Cu ALLOY ZHU Hou-fei 1 HUANG Wen-quan 2 YANG Chao 3 HAO Long 1 GAN Fu-xing 1、4 1 School of Resource and Environmental Science Wuhan University Wuhan 430079 2 Anhui Vocational Technical College of Industry Trade Huainan 232001

US Patent for Electroless plating process for

Magnetic recording media including an alternative substrate material having a Young's Modulus greater than that of Al-based substrate materials and a preselected average surface roughness (Ra) are formed by depositing a continuous adherent non-magnetic catalytically active layer on a surface of the substrate and electrolessly plating an amorphous seed layer on the catalytically active layer

Optimization of Technology of Zn

A group of orthogonal text is arranged and carried out to study the effect on electroplating technology of Zn-Ni-P alloy the range analysis is employed to distinguish the influent degree of factors include in this text the optimum technology of Zn - Ni -P alloy

Electrochemical Impedance Spectroscopy of Ni

2012-12-7Electroless Ni-B coatings are found to have a lower resistance against corrosion compared to Ni-P coatings [10 13] The difference in corrosion resistance between electroless Ni-P and Ni-B coatings is mainly due to the difference in their structure It is believed that the passivation films that form on Ni-B coated

mathematical modeling and experimental study of heavy

Optimization of electroless Ni–Zn–P deposition process: experimental study and mathematical modeling A mathematical model based on mixed potential theory was developed which was used to optimize a non-anomalous Ni–Zn–P electroless deposition process developed by us at USC

Sharif Digital Repository / Sharif University of

Usage of electroless Ni-B coatings as coatings with super hardness and wear resistance has been increased widely but these coatings have low resistance to corrosion In this project in order to increase resistance to corrosion titania powder of szie 200 to 300 nanometers is added to Ni-B coatings to make a composite coating of Ni-B-TiO2 that has better corrosion properties compared to Ni-B

Effect of Heat Treatment of AZ91 Magnesium Alloy on

The dense electroless Ni-P deposition is formed on the alloy heat treated for 24 h The corrosion behavior of the single Ni-P layer on the heat treated (for 12 h) and untreated alloy show a marked deterioration as investigated by the anodic polarization and electrochemical impedance spectroscopy (EIS) techniques

Optimization of electroless Ni

A mathematical model based on mixed potential theory was developed which was used to optimize a non-anomalous Ni-Zn-P electroless deposition process developed by us at USC The model was developed by assuming an adsorption step in addition to the electrochemical steps

Optimization of the Properties of Electrodeposited Ni

2011-9-21Pal have optimized the tribological performance of electroless Ni-P coatings using Taguchi methods [17] Liu et al have studied the deposition of nanosized zinc oxide on Cu-Zn alloy substrate using Taguchi method [18] Santana et al studied electrodeposition of Ni-W-Co amorphous alloys using response surface methodology [19]

Optimization of electroless Ni–Zn–P deposition process

2007-7-30Optimization of electroless Ni–Zn–P deposition process: experimental study and mathematical modeling Basker Veeraraghavan Hansung Kim Branko Popov∗ Department of Chemical Engineering Center for Electrochemical Engineering University

معرفی پوشش آلیاژی نیکل

2020-5-31Microstructural Characterization and Corrosion Behavior of Electroless Ni-Zn-P Thin Films Journal of Metallurgy 2014 2- Veeraraghavan B Kim H Popov B (2004) Optimization of electroless Ni–Zn–P deposition process: experimental study

CiteSeerX — Optimization of electroless Ni–Zn–P

CiteSeerX - Document Details (Isaac Councill Lee Giles Pradeep Teregowda): A mathematical model based on mixed potential theory was developed which was used to optimize a non-anomalous Ni–Zn–P electroless deposition process developed by us at USC The model was developed by assuming an adsorption step in addition to the electrochemical steps

Optimization of electroless Ni

A mathematical model based on mixed potential theory was developed which was used to optimize a non-anomalous Ni-Zn-P electroless deposition process developed by us at USC The model was developed by assuming an adsorption step in addition to the electrochemical steps

Synthesis and performance of Zn–Ni–P thin films

The deposition of anticorrosive Zn–Ni–P thin films can be performed both by electrochemical deposition and by chemical plating (no current deposition – "electroless") [10–16] A variety of testing cells such as the Hull cell hanced through the optimization of the bath composition and

Electroless Ni

Particles Gradation Optimization of Blasting Rockfill Based on Fractal Theory Preparation of Polyurethane Solid Tire with Low Heat Generating p 478 Electroless Ni-P-Zn Alloy Deposition on Surface of Low Carbon Steel p 482 Pressurized Microwave-Assisted Extraction of Isoflavones from Soy The optimal process conditions for the Ni-Zn-P

معرفی پوشش آلیاژی نیکل

2020-5-31Microstructural Characterization and Corrosion Behavior of Electroless Ni-Zn-P Thin Films Journal of Metallurgy 2014 2- Veeraraghavan B Kim H Popov B (2004) Optimization of electroless Ni–Zn–P deposition process: experimental study

Otrzymywanie i właściwości bezprądowych powłok

The chemical composition of electroless Ni-Zn coatings was investigated in dependence on the bath composition As the main component of such coatings was nickel in order to enhance the zinc content the electroless (Zn-N)i+Ni coatings of constant thickness of 8 m were covered with electrolytic zinc layer of variable thickness under constant

Electroless Ni–W–P Coating and Its Nano

2019-3-10The ternary alloy Ni–W–P and its WS2 nanocomposite coatings were successfully obtained on low-carbon steel using the electroless plating technique The sodium tungstate (Na2WO4) concentration in the bath was varied to obtain Ni–W–P deposits containing various Ni and P contents WS2 composite was obtained with a suitable concentration of Na2WO4 in Ni–P coating