Electroless Ni–B coated WC and VC powders as precursors for liquid phase sintering

Vélez, Mariano; Quiñones, Héctor Jesús Contreras; Giampaolo, A.R. Di; Lira, J.; Grigorescu, I.C.

doi:10.1016/s0263-4368(98)00035-3

Cited by 21 publications

(15 citation statements)

References 14 publications

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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: 52%

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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Section: Resultsmentioning

confidence: 52%

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

et al. 2018

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“…Related to this proposed explanation has been finding that a CoB addition of 1.0 wt.% markedly enhances the densification of TiB 2 , 22 and N-B coated WC powders easily leads to liquid phase sintering. 17 The effect of Ni 3 B addition on the bulk density and relative density of the products sintered by induction heating for 600 s is shown in Fig. 6.…”

Section: Resultsmentioning

confidence: 99%

“…The addition of boride with low melting point such as nickel boride or cobalt boride leads to the densification by liquid phase sintering because the pseudo-binary eutectic reaction occurs at relatively low temperature. [16][17][18][19] …”

Section: Introductionmentioning

confidence: 99%

Effect of nickel boride additive on simultaneous densification and phase decomposition of TiB2–WB2 solid solutions by pressureless sintering using induction heating

Shibuya

Ohyanagi

2007

Journal of the European Ceramic Society

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“…Electroless Ni−B alloy coatings have also been used to facilitate sintering of hard particles such as WC, VC [17], B 4 C [18,19], and diamond [20] particles. Recently, electroless Ni−B alloy coatings have also been applied to electromagnetic wave shielding [21].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Ni–B alloy coated vapor-grown carbon nanofibers by electroless deposition

Arai

Imoto

Suzuki

et al. 2011

Carbon

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Please cite this article as: Arai, S., Imoto, Y., Suzuki, Y., Endo, M., Fabrication of Ni−B alloy coated vapor-grown carbon nanofibers by electroless deposition, Carbon (2010Carbon ( ), doi: 10.1016Carbon ( /j.carbon.2010 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Electroless Ni–B coated WC and VC powders as precursors for liquid phase sintering

Cited by 21 publications

References 14 publications

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

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

Effect of nickel boride additive on simultaneous densification and phase decomposition of TiB2–WB2 solid solutions by pressureless sintering using induction heating

Fabrication of Ni–B alloy coated vapor-grown carbon nanofibers by electroless deposition

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