Effect of sodium dodecyl benzene sulfonate on vitrified bond and dispersion of diamond

LIU Yibo; KONG Shuaifei; LI Zhengxin; XU Qiang; CHEN Chunhui

doi:10.13394/j.cnki.jgszz.2021.0111

Volume 42 Issue 2

May 2022

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Article Navigation > Diamond & Abrasives Engineering > 2022 > 42(2): 174-179

LIU Yibo, KONG Shuaifei, LI Zhengxin, XU Qiang, CHEN Chunhui. Effect of sodium dodecyl benzene sulfonate on vitrified bond and dispersion of diamond[J]. Diamond & Abrasives Engineering, 2022, 42(2): 174-179. doi: 10.13394/j.cnki.jgszz.2021.0111

Citation:

LIU Yibo, KONG Shuaifei, LI Zhengxin, XU Qiang, CHEN Chunhui. Effect of sodium dodecyl benzene sulfonate on vitrified bond and dispersion of diamond[J]. Diamond & Abrasives Engineering, 2022, 42(2): 174-179. doi: 10.13394/j.cnki.jgszz.2021.0111

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Effect of sodium dodecyl benzene sulfonate on vitrified bond and dispersion of diamond

doi: 10.13394/j.cnki.jgszz.2021.0111

LIU Yibo^{1, 2
,
,},
KONG Shuaifei^{1, 2
,},
LI Zhengxin³,
XU Qiang²,
CHEN Chunhui²

1.
Central Iron & Research Institute, Beijing 100081, China
2.
Beijing Gang Yan Diamond Products Company, Beijing 102200, China
3.
School of Material Science & Engineering, Henan University of Technology, Zhengzhou 450001, China

More Information

Received Date: 2021-10-30
Rev Recd Date: 2021-12-04

Abstract

Abstract

Vitrified bonds and the mixed powders of diamond and vitrified bonds are prepared by sol-gel and corresponding bulk composites are fabricated. The effect of mass fraction of dispersant (sodium dodecyl benzene sulfonate) ranged from 0 to 4.02% on property of vitrified bond is studied, including composition phase of vitrified bond, refractoriness, bending strength and thermal expansion coefficient. The dispersibility of M2.5/5 diamond dispersed in the mixed powders is investigated. The result reveals that when the mass fraction of dispersant was 1.34%, refractoriness of 700 ℃, bending strength of 45 MPa and coefficient of thermal expansion of 4.3×10⁻⁶ ℃⁻¹ have no change compared with that without addition of dispersant. Besides, with the dispersant increasing from 1.34% to 4.02% the refractoriness of vitrified bond prepared by sol-gel technique decreases to 600 ℃ and bending strength decreases to 28 MPa. The thermal expansion coefficient of vitrified bond increases to 7.5×10⁻⁶ ℃⁻¹. The research demonstrates that the addition of 1.34% dispersant can realize uniform dispersion of M2.5/5 diamond powder in vitrified bond /diamond composites without causing change in properties of the composites.
- sodium dodecyl benzene sulfonate,
- vitrified bond abrasives,
- dispersibility,
- refractoriness

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References(25)

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