Improving dispersibility of hafnium diboride in aqueous media using polyacrylic acid and ammonium citrate

Gang Wang; Rujie He; Feng He

doi:10.1016/j.powtec.2013.10.038

Improving dispersibility of hafnium diboride in aqueous media using polyacrylic acid and ammonium citrate

Gang Wang, Rujie He^*, Feng He

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

It has been well accepted that polyacrylic acid (PAA) is an effective dispersant for metal diborides (such as ZrB₂) in aqueous media. However, when dispersing HfB₂ powder, the dispersing effect is reduced significantly. In this work, a second dispersant, ammonium citrate, was used to resolve this problem. It was found that a PAA-ammonium citrate binary dispersant system could effectively enhance the zeta potential, increase the PAA adsorption content, and improve the stability of HfB₂. The apparent viscosities of the suspensions were also investigated. Results showed that the PAA-ammonium citrate binary dispersant system was effective for improving the dispersion of HfB₂ particles in aqueous media.

Original language	English
Pages (from-to)	163-165
Number of pages	3
Journal	Powder Technology
Volume	253
DOIs	https://doi.org/10.1016/j.powtec.2013.10.038
Publication status	Published - Feb 2014
Externally published	Yes

Keywords

Borides
Dispersion
Rheology

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10.1016/j.powtec.2013.10.038

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Wang, G., He, R., & He, F. (2014). Improving dispersibility of hafnium diboride in aqueous media using polyacrylic acid and ammonium citrate. Powder Technology, 253, 163-165. https://doi.org/10.1016/j.powtec.2013.10.038

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abstract = "It has been well accepted that polyacrylic acid (PAA) is an effective dispersant for metal diborides (such as ZrB2) in aqueous media. However, when dispersing HfB2 powder, the dispersing effect is reduced significantly. In this work, a second dispersant, ammonium citrate, was used to resolve this problem. It was found that a PAA-ammonium citrate binary dispersant system could effectively enhance the zeta potential, increase the PAA adsorption content, and improve the stability of HfB2. The apparent viscosities of the suspensions were also investigated. Results showed that the PAA-ammonium citrate binary dispersant system was effective for improving the dispersion of HfB2 particles in aqueous media.",

keywords = "Borides, Dispersion, Rheology",

author = "Gang Wang and Rujie He and Feng He",

year = "2014",

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doi = "10.1016/j.powtec.2013.10.038",

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volume = "253",

pages = "163--165",

journal = "Powder Technology",

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AU - Wang, Gang

AU - He, Rujie

AU - He, Feng

PY - 2014/2

Y1 - 2014/2

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AB - It has been well accepted that polyacrylic acid (PAA) is an effective dispersant for metal diborides (such as ZrB2) in aqueous media. However, when dispersing HfB2 powder, the dispersing effect is reduced significantly. In this work, a second dispersant, ammonium citrate, was used to resolve this problem. It was found that a PAA-ammonium citrate binary dispersant system could effectively enhance the zeta potential, increase the PAA adsorption content, and improve the stability of HfB2. The apparent viscosities of the suspensions were also investigated. Results showed that the PAA-ammonium citrate binary dispersant system was effective for improving the dispersion of HfB2 particles in aqueous media.

KW - Borides

KW - Dispersion

KW - Rheology

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DO - 10.1016/j.powtec.2013.10.038

M3 - Article

AN - SCOPUS:84890074246

SN - 0032-5910

VL - 253

SP - 163

EP - 165

JO - Powder Technology

JF - Powder Technology

ER -

Improving dispersibility of hafnium diboride in aqueous media using polyacrylic acid and ammonium citrate

Abstract

Keywords

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