Modelling compaction behaviour of nickel–phosphorus and nickel–boron electroless coated titanium powders

Thyagarajan, Ravi; Cantin, G. M. Delphine; Kashyap, B.P.; Bettles, Colleen Joyce

doi:10.1016/j.powtec.2015.01.007

Cited by 13 publications

(4 citation statements)

References 28 publications

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“…EN-P-based processes are once again more popular for the production of core-shell particles containing nickel alloys by electroless plating, but some nickel-boron core-shells have been reported as early as the late 90th [8,340]. Several types of particles have been used as core: boron carbides (B 4 C) [341][342][343][344][345][346], diamond [347], titanium [348], silicon carbide [349], magnesium oxide [350] and titanium hydride [351]. In most cases, a pre-treatment consisting of sensitization and activation is made on the powders to increase their catalytic activity.…”

Section: Core-shell Particlesmentioning

confidence: 99%

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Recent advances in electroless nickel‑boron coatings

Vitry

Hastir

Mégret

et al. 2022

Surface and Coatings Technology

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Section: Core-shell Particlesmentioning

confidence: 99%

“…Electroless plating is an alternative to traditional blending processes such as mechanical milling and has been used on titanium particles [356]. The main advantages are enhanced diffusions processes that will reduce the sintering time needed to reach full density and homogeneous microstructure.…”

Section: Core-shell Particlesmentioning

confidence: 99%

Recent advances in electroless nickel‑boron coatings

Vitry

Hastir

Mégret

et al. 2022

Surface and Coatings Technology

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“…2.a shows the formed coating on the WC particles having morphologies of broccoli and cauliflower. The obtained morphology compared with other similar studies [11,12] exhibited that the coat had appropriate appearance and homogeneity. Formation of electroless nickel-boron coating enlarged the WC particles size.…”

Section: Resultsmentioning

confidence: 51%

Creation of Ni-B/Ni-P electroless coating on the WC particles without surface activator

et al. 2018

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One of the methods for improving metal-ceramic interface and suppression of agglomeration is the formation of a monolayer electroless coating on the particles. Investigations indicated that Ni-B monolayers should be first formed to develop in the next process an electroless Ni-P coating with the morphology of cauliflower. It was possible to produce a Ni-B layer on WC particles when a bath was heated at a temperature of 95 °C by using sodium borohydride and an appropriate stabilizer. Following this process, the Ni-P electroless coating was deposited on WC particles at 85 °C. In this way, two layers of electroless coating of Ni-B/Ni-P on the WC ceramic particles without using the surface activator were produced successfully. The coating morphology and surface analysis were performed by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The results showed that only the degreasing with acetone as a surface preparation of ceramic particles is sufficient to make a Ni-P or Ni-B coating. Electroless Ni-B coating with appropriate adhesion to the surface produces an acceptable surface for the electroless Ni -P coating formation.

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“…Furthermore, from the binding energies presented, the oxidation state of NiO is Ni 2+ and the peak located at 854.7 eV is due to a satellite peak of Ni 2p 3/2 located at 861.6 eV [149,152,154,156]. Other small intensity peaks depicted on figure 4.5(e) were assigned as Ni 2p 3/2 satellites, more specifically the ones located at 858.8 eV, 862.8 eV and 864.9 eV [155,157,158].…”

Section: X-ray Photoelectron Spectroscopy Analysis (Xps)mentioning

confidence: 85%

Transition metal oxides and carbide as active electrodes for electrochemical capacitors

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I would like to express my sincere gratitude to all who helped me somehow to accomplish my masters degree studies.Firstly, I would like to thank Dr. Hudson Giovani Zanin for his mentorship, and for always trusting me and introducing me to this field of research. Likewise, to Dr. Alfredo Carlos Peterlevitz for his patience, mentorship, wisdom, knowledge, and suggestions provided during this fruitful period at Carbon Sci-tech labs. Paldies! Also, I appreciate Rafael Vicentini for providing samples, assisting me with electrochemical studies, and for his friendship; Dr. Helder Ceragioli for all knowledge and useful suggestions on hot filament chemical vapor deposition technique; Dr. Aline Pascon for allowing me to visit Center for Semiconductor Components (CCS) and for kindly helping me with scanning electron microscopy images; Willian Nunes for his suggestions regarding electrochemical impedance spectroscopy bibliography; Paloma for X-ray diffraction in samples and friendship; Dr. Elenice for assisting me with X-ray photoelectron spectroscopy spectra due to her expertise and friendship; Dr. Bruno Morandi for his revision and useful suggestions; Thais for assisting me with chemical synthesis and friendship;

show abstract

Modelling compaction behaviour of nickel–phosphorus and nickel–boron electroless coated titanium powders

Cited by 13 publications

References 28 publications

Recent advances in electroless nickel‑boron coatings

Recent advances in electroless nickel‑boron coatings

Creation of Ni-B/Ni-P electroless coating on the WC particles without surface activator

Transition metal oxides and carbide as active electrodes for electrochemical capacitors

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