Influence of short chain organic acids and bases on the wetting properties and surface energy of submicrometer ceramic powders

Neirinck, Bram; Soccol, Dimitri; Fransaer, Jan; Biest, Omer Van der; Zhang, Fei

doi:10.1016/j.jcis.2010.05.009

Cited by 11 publications

(5 citation statements)

References 29 publications

(58 reference statements)

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“…A detailed explanation on capillary rise experiments can be found in literature. 18,19 During a capillary rise experiment, three different regimes can be identified. At the initial contact between powder pellet and solvent, a turbulent flow stage is initiated.…”

Section: Resultsmentioning

confidence: 99%

“…A recently developed modified Washburn procedure 18,19 was used to quantify the influence of different carbon coatings on the wetting properties of titania and alumina. This modified Washburn technique is based on the use of reproducibly precompacted powder samples by cold isostatic pressing at 240 MPa instead of loosely packed powder in a glass tube.…”

Section: Methodsmentioning

confidence: 99%

“…The capillary rise measurements were carried out using the procedure and setup described elsewhere. 18,19 Three experiments were carried out with each type of modified powder to assess the accuracy. The slope of the linear part of the squared weight gain as a function of time curve is used for the calculation of the contact angle.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Effect of Carbon Modification of Particles on Their Incorporation Rate during Electrodeposition

Soccol¹,

Martens²,

Claessens³

et al. 2011

J. Electrochem. Soc.

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In this work, the influence of surface modification of titania and alumina particles with carbon on their codeposition behavior with nickel during electroplating is studied. The surface modification was done using a two step procedure where a carbon rich precursor was first deposited on the particle surface by hydrolysis which was subsequently pyrolyzed in an inert atmosphere. The effect of synthesis conditions and the properties of the carbon coating were studied using XPS and Raman spectroscopy and were linked to the contact angle measurements and electrical conductivity of the carbon coating. Modified and unmodified particles were codeposited with nickel from a sulphamate base electrolyte at several current densities. It was found that large contact angles between particles and electrolyte and high electrical conductivity of the carbon coating, led to the highest incorporation rates, as long as particle agglomeration was limited. Optimized carbon synthesis conditions doubled the Al 2 O 3 and tripled the TiO 2 content in the nickel coating compared to the unmodified particles.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Effect of Carbon Modification of Particles on Their Incorporation Rate during Electrodeposition

Soccol¹,

Martens²,

Claessens³

et al. 2011

J. Electrochem. Soc.

Self Cite

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“…However, in the case of fillers in form of powders or porous media such as lignin, some issues arise with this technique for measuring equilibrium contact angles, particularly due to the imbibition of liquids into the media [39][40][41]. Wicking tests are then performed as an alternative method, and they are described using the well-known modified Washburn equation for porous materials [39,[42][43][44][45]. However this method, that theoretically allows the determination of apparent advancing contact angles [46,47], does not always give reliable results due to the Washburn hypotheses that are not respected or no longer valid [40,43,48].…”

Section: Introductionmentioning

confidence: 99%

An efficient solution to determine surface energy of powders and porous media: Application to untreated and treated lignin

Carretier¹,

Pucci

Lacoste³

et al. 2022

Applied Surface Science

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“…Contact angles measured form different solvents with the as-received and organic saturated α-Al 2 O 3 powder , measured at 20 °C[7] …”

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confidence: 99%

Characterization of a Ceramic Powder Surface by Contact Angle Measurements and Infrared Spectroscopy

Neirinck

Soccol

Fransaer

et al. 2012

KEM

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The surface chemistry of a suspended particle greatly affects it behavior during electrophoretic deposition. The type and amount of surface groups determines whether the particles can be charged by interaction with the solvent. Furthermore, it is suspected that the surface chemistry plays a prominent role in the mechanisms governing the actual deposition of the particles. In the present work the surface chemistry of as-received and surface modified alumina powder is characterized by means of contact angle measurements and Diffuse Reflectance Infrared Fourier Transform spectroscopy. The wetting is measured using a modified Washburn method which yields quantitative contact angle values. The acid-base and dispersive surface energy components are calculated from these values using the surface tension component theory. Infrared spectroscopy was used to compare the surface groups of the treated and untreated powders and confirm the trends in surface properties as calculated from the contact angles.

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Influence of short chain organic acids and bases on the wetting properties and surface energy of submicrometer ceramic powders

Cited by 11 publications

References 29 publications

Effect of Carbon Modification of Particles on Their Incorporation Rate during Electrodeposition

Effect of Carbon Modification of Particles on Their Incorporation Rate during Electrodeposition

An efficient solution to determine surface energy of powders and porous media: Application to untreated and treated lignin

Characterization of a Ceramic Powder Surface by Contact Angle Measurements and Infrared Spectroscopy

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