Preparation of electroless Ni–P composite coatings containing nano-scattered alumina in presence of polymeric surfactant

Afroukhteh, S.; Dehghanian, Changiz; Emamy, M.

doi:10.1016/j.pnsc.2012.06.006

Cited by 62 publications

(21 citation statements)

References 23 publications

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“…Decreasing the thickness reveals the low deposition rate of the NiP-C 3 N 4 coating compared to that for the NiP one. This may be attributed to the possibility of the physical adsorption of some C 3 N 4 particles on the catalytic surface that result in the minimization of the available active sites for the deposition process that decreases the overall deposition rate [25]. In addition, there are no defects or cracks observed at the substrate-coating interface.…”

Section: Surface Morphology Of the Ni-p And Ni-p-c 3 N 4 Coatingsmentioning

confidence: 99%

Synthesis, Characterization, and Application of Novel Ni-P-Carbon Nitride Nanocomposites

et al. 2018

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Dispersion of 2D carbon nitride (C 3 N 4 ) nanosheets into a nickel phosphorous (NiP) matrix was successfully achieved by ultrasonication during the electroless plating of NiP from an acidic bath. The morphology and thickness, elemental analysis, phases, roughness, and wettability for as-plated and heat-treated nanocomposite were determined by scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, atomic force microscopy, and contact angle measurements, respectively. C 3 N 4 showed a homogeneous distribution morphology in the nanocomposite that changed from amorphous in case of the NiP to a mixed crystalline-amorphous structure in the NiP-C 3 N 4 nanocomposite. The microhardness and corrosion resistance of the as-plated nanocomposite and the heat-treated nanocomposite coating were significantly enhanced compared to the Ni-P. The nanocomposite showed a superior corrosion protection efficiency of~95%, as observed from the electrochemical impedance spectroscopy (EIS) measurements. On the other hand, the microhardness of the nanocomposite was significantly increased from 780 to reach 1175 HV 200 for NiP and NiP-C 3 N 4 , respectively.

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Section: Surface Morphology Of the Ni-p And Ni-p-c 3 N 4 Coatingsmentioning

confidence: 99%

Synthesis, Characterization, and Application of Novel Ni-P-Carbon Nitride Nanocomposites

et al. 2018

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“…Therefore, the plating temperature had little effect on the chemical composition of the film. High- P deposits have amorphous structure and excellent performances in wear and corrosion resistances (Gil et al 2008;Keong et al 2002;Afroukhteh et al 2012).…”

Section: Substratementioning

confidence: 99%

Effect of plating temperature on electroless amorphous Ni–P film on Si wafers in an alkaline bath solution

Jiang

2017

Appl Nanosci

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Nickel-phosphorus (Ni-P) film was deposited by electroless process on the surface of p-type polycrystalline silicon at the temperature of 60-80°C and pH value of 10.0. The effect of plating temperature on morphology, crystallographic structure, chemical composition and deposition rate of Ni-P film was studied. Microstructure and morphology of surface and cross section of the film were examined by a scanning electron microscopy and optical microscopy. The crystallographic structure and chemical composition of the film were determined by X-ray diffraction and energy dispersive spectroscopy, respectively. The results show that electroless Ni-P films were composed of the amorphous phase. The stable value P-content of the film was maintained at about 12 wt% with increasing bath temperature. The film surface was dense, and no cracking was found at 60 and 80°C. However, the film deposited at 70 and 80°C had a poor adherence to the substrate with evidence of delamination. The deposition rate of the film was increased with increasing plating temperature. At the same time, the deposition mechanism of the film on silicon substrate in the alkaline bath solution was addressed.

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“…Pengurangan kompisisi unsur P pada coating sangat berpengaruh pada ketahanan korosinya. Secara umum, ketahanan korosi coating Ni-P akan meningkat seiring dengan bertambahnya kandungan P [19].…”

Section: Analisis Fasa Dan Kristalinitasunclassified

STUDI PENGARUH VARIASI SUHU PERLAKUAN PANAS TERHADAP STRUKTURMIKRO DAN KOROSIFITAS PADA PELAPISAN SS 410 MENGGUNAKAN KOMPOSIT Ni-P-NANO PARTIKEL Al2O3

Lestari¹,

Mabruri²,

Syahrial³

2017

jsmi

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ABSTRAK STUDIPENGARUH VARIASISUHUPERLAKUANPANASTERHADAPSTRUKTURMIKRO DAN KOROSIFITAS PADA PELAPISAN SS 410 MENGGUNAKAN KOMPOSIT Ni-P-NANO PARTIKEL Al 2 O 3 .Pelapisan material Stainless Steel 410 dengan komposit Ni-P-nano powder Al 2 O 3 menggunakan metode electroless kodeposisi sangat tergantung pada tingkat penggabungan lapisan komposit tersebut antara matriks Ni-P dan penguat nano partikel Al 2 O 3 Hal ini berpengaruh pada keunggulan sifat lapisan komposit seperti ketahanan korosi yang baik, laju deposisi yang cepat, keseragaman deposit yang dihasilkan dan ketahanan kimia yang baik. Pada penelitian ini, parameter yang divariasi adalah suhu perlakuan panas setelah proses electroless kodeposisi. Penelitian ini bertujuan untuk mengetahui fenomena strukturmikro, fasa dan kristalinitas, komposisi kimia dan distribusi unsur di permukaan coating, dan ketahanan korosi komposit coating Ni-P-nano partikel powder Al 2 O 3 . Substrat yang digunakan yaitu Stainless Steel 410 di-pretreatment untuk mengaktivasi permukaan, kemudian direndam dalam larutan yang terdiri dari nikel sulfat, natrium hypophosphite, ammonium sulfat, sodium asetat, lead asetat dan serbuk nano alumina. Substrat direndam selama 60 menit, dalam suhu proses 90±2 o C dengan kecepatan putaran 150 rpm. Karakterisasi sampel dilakukan menggunakan alat SEM-EDS, XRD, dan CMS. Dari hasil percobaan menunjukkan terdapat perbedaan visual permukaan substrat antara logam dasar, setelah proses electroless coating dan setelah perlakuan panas. Berdasarkan variabel percobaan, untuk suhu perlakuan panas yang optimum adalah 400 o C, dimana terbentuk strukturmikro dari nodular menjadi butiran yang lebih teratur dan merata serta memiliki ketahanan korosi yang paling baik. ABSTRACT THE STUDY OF INFLUENCE HEAT TREATMENT TEMPERATURE ON THE MICROSTRUCTURE AND CORROSIVITY OF COATING SS 410 USING COMPOSITENi-P-PARTICLE NANO Al 2 O 3 . The Ni-P-particle nano powder Al 2 O 3 composite coating have been prepared by electroless codeposition method. It has advantage that the process does not require an electrode, fast deposition rate, good corrosion and wear resistance. In this study, the variable parameters is the heat treatment temperatures after electroless codeposition process. The aim of this research is to determine microstructure phenomenon, phase and crystalinity, chemical composition and distribution on coating surface, and corrosivity Ni-P-nano powder Al 2 O 3 composite coating. The substrate is used stainless steel 410. Substrates have been pre treated in order to activate the surface. Then, substrate immersed in solution that consisting of nickel sulfate, sodium hypophosphite, ammonium sulfate, sodium acetate, lead acetate dan nano alumina powder. The substrate

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Preparation of electroless Ni–P composite coatings containing nano-scattered alumina in presence of polymeric surfactant

Cited by 62 publications

References 23 publications

Synthesis, Characterization, and Application of Novel Ni-P-Carbon Nitride Nanocomposites

Synthesis, Characterization, and Application of Novel Ni-P-Carbon Nitride Nanocomposites

Effect of plating temperature on electroless amorphous Ni–P film on Si wafers in an alkaline bath solution

STUDI PENGARUH VARIASI SUHU PERLAKUAN PANAS TERHADAP STRUKTURMIKRO DAN KOROSIFITAS PADA PELAPISAN SS 410 MENGGUNAKAN KOMPOSIT Ni-P-NANO PARTIKEL Al2O3

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