Electroless Deposition of Ni-P/SiO&lt;sub&gt;2&lt;/sub&gt; Composite Coating

Buchtík, Martin; Kosár, Petr; Wasserbauer, Jaromír; Zmrzlý, Martin

doi:10.11118/actaun201664051459

Cited by 4 publications

(4 citation statements)

References 9 publications

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“…Fine crystalline particles of phosphide (Ni 3 P) are formed simultaneously, predominantly in the form of precipitates. 9 The highest value of the hardness of Ni-P coatings is reached after the heat treatment at 400°C for 1 h, when the hardness reaches a value of up to 1300 HV. 10 The hardness of Ni-P coatings can also be increased by reducing the phosphorus content by changing the ratio of the components contained in the nickel bath and by changing the coating-process conditions.…”

Section: Introductionmentioning

confidence: 99%

“…However, the corrosion resistance of Ni-P coatings increases with the increasing content of phosphorus. 1,9 The hardness of deposited low-phosphorus Ni-P coatings can be additionally increased by heat treatment. 5 During heat treatment, the deposited coating consisting of an amorphous Ni-P phase decomposes due to a gradual increase in the temperature to form crystalline particles of phosphide (Ni 3 P).…”

Section: Introductionmentioning

confidence: 99%

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Characterization of Ni-P coating prepared on a wrought AZ61 magnesium alloy via electroless deposition

Buchtík¹,

Kosár²,

Wasserbauer³

et al. 2017

Mater. Tehnol.

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A low-phosphorous Ni-P coating was prepared on a wrought AZ61 magnesium alloy via electroless deposition for 1 h after an adequate substrate-surface pre-treatment. The prepared coating with a thickness of 10 μm was characterized by the uniform distribution of Ni (95.4 % mass fraction) and P (4.6 % mass fraction) in the cross-section. Microcavities present in the coating resulted in quite a low corrosion resistance of the coated magnesium alloy in a 0.1 M NaCl solution. On the other hand, the coating exhibits a high degree of adhesion, as evidenced by a scratch test, and significantly improves the AZ61 magnesium-alloy microhardness. Keywords: electroless nickel, magnesium alloy, AZ61, characterization of Ni-P coatings Malo porozna Ni-P prevleka je bila pripravljena na povr{ini kovane AZ61 magnezijeve zlitine. Prevleka je bila pripravljena z enourno neelektri~no depozicijo na predhodno ustrezno obdelani povr{ini zlitine. Pripravljena prevleka debeline 10 μm je imela v pre~nem prerezu enakomerno porazdelitev Ni (95,4 % masnih odstotkov) in P (4,6 % masnih odstotkov). Zaradi prisotnosti mikropraznin v izdelani prevleki je korozijska odpornost prevle~ene magnezijeve zlitine v 0,1 M NaCl raztopini slaba. Preizkusi razenja prevleke pa so po drugi strani pokazali zelo dober oprijem izdelane prevleke s povr{ino zlitine in znatno izbolj{anje mikrotrdote AZ61 magnezijeve zlitine.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Characterization of Ni-P coating prepared on a wrought AZ61 magnesium alloy via electroless deposition

Buchtík¹,

Kosár²,

Wasserbauer³

et al. 2017

Mater. Tehnol.

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“…Tidak ada ikatan molekul antara partikel dan matriks logam [5]. Beberapa faktor yang mempengaruhi penggabungan patikel keras/halus ke dalam matriks electroless Ni-P yaitu bentuk dan ukuran partikel, densitas relatif partikel, muatan partikel, ketidakreaktifan partikel, konsentrasi partikel dalam bath, metode dan derajat agitasi, kesesuaian partikel dengan matriks dan orientasi bagian yang dilapis [6].…”

Section: Pendahuluanunclassified

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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“…Palladium is used as catalyst and the nickel and copper electroless precipitation reaction is begun. Two metals (nickel and copper) are most widely used metals at the decorative plating of the plastics [6][7][8]. Electroless metal plating technique begins to apply by using catalyst.…”

Section: Introductionmentioning

confidence: 99%

Electroless Cu Plating on ABS Plastic by Using Environmentally Friendly Chemicals

Uraz¹,

Macit²

2018

deufmd

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In this study, the electroless copper plating technique was applied on Acrylonitrile Butadiene Styrene (ABS) plastic. The effects of ionic liquid types, plating time and sanding paper size were investigated on plating. Experiments were carried out with two different types of ionic liquids: 1-ethyl-3-methyl imidazolium chloride (EMIC C6H11N2Cl) and 1-ethyl 3-methylimidazolium dicyanamide (DCA, C8H11N5), with 120-500 grit sandpapers by applying sand attrition process, at constant bath temperature as 60⁰C, and with 30-150 minutes of deposition times. The characterization of the coated samples was performed by X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). Experimental results show that the copper plating on ABS plastic was succeeded. The maximum amount of deposit was obtained by using EMIC as catalyst with 150 min deposition time and with 500 grit sandpaper size.

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Electroless Deposition of Ni-P/SiO<sub>2</sub> Composite Coating

Cited by 4 publications

References 9 publications

Characterization of Ni-P coating prepared on a wrought AZ61 magnesium alloy via electroless deposition

Characterization of Ni-P coating prepared on a wrought AZ61 magnesium alloy via electroless deposition

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

Electroless Cu Plating on ABS Plastic by Using Environmentally Friendly Chemicals

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