Fabrication of composite coating particles with mullite stoichiometric ratio by a novel processing

Yuefeng Tang; Aidong Li; Huiqin Ling; Yijun Wang; Qiyue Shao; Yinong Lü; Zhida Ling

doi:10.1016/S0169-4332(02)00188-5

Fabrication of composite coating particles with mullite stoichiometric ratio by a novel processing

Yuefeng Tang, Aidong Li, Huiqin Ling, Yijun Wang, Qiyue Shao, Yinong Lü, Zhida Ling

College of Materials Science and Engineering

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

3 Scopus citations

Abstract

In order to solve the difficult problem of heterogeneity of different components in the procedure of ceramic preparation, a novel processing (heterogeneous nucleation-and-growth processing) was used to prepare homogeneous distribution powders. Composite homogeneous coating particles with mullite stoichiometric ratio (consisting of alpha alumina cores (average particle size 0.26 μm) with an outer homogeneous amorphous silica layer) were prepared by the heterogeneous nucleation-and- growth processing. Effects of silica content in composite coating particles versus concentration of tetraethylorthosilicate (TEOS), pH value, reaction time and reaction temperature were studied. The homogeneous amorphous silica layer on cores was confirmed by X-ray diffraction (XRD), transmission electron microscopy (TEM) and zeta potential measurement.

Original language	English
Pages (from-to)	83-86
Number of pages	4
Journal	Applied Surface Science
Volume	193
Issue number	1-4
DOIs	https://doi.org/10.1016/S0169-4332(02)00188-5
State	Published - 5 Jun 2002

Keywords

Composite coating particles
Heterogeneous nucleation-and-growth processing
Homogeneous coating
Mullite stoichiometric ratio
Zeta potential

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10.1016/S0169-4332(02)00188-5

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title = "Fabrication of composite coating particles with mullite stoichiometric ratio by a novel processing",

abstract = "In order to solve the difficult problem of heterogeneity of different components in the procedure of ceramic preparation, a novel processing (heterogeneous nucleation-and-growth processing) was used to prepare homogeneous distribution powders. Composite homogeneous coating particles with mullite stoichiometric ratio (consisting of alpha alumina cores (average particle size 0.26 μm) with an outer homogeneous amorphous silica layer) were prepared by the heterogeneous nucleation-and- growth processing. Effects of silica content in composite coating particles versus concentration of tetraethylorthosilicate (TEOS), pH value, reaction time and reaction temperature were studied. The homogeneous amorphous silica layer on cores was confirmed by X-ray diffraction (XRD), transmission electron microscopy (TEM) and zeta potential measurement.",

keywords = "Composite coating particles, Heterogeneous nucleation-and-growth processing, Homogeneous coating, Mullite stoichiometric ratio, Zeta potential",

author = "Yuefeng Tang and Aidong Li and Huiqin Ling and Yijun Wang and Qiyue Shao and Yinong L{\"u} and Zhida Ling",

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doi = "10.1016/S0169-4332(02)00188-5",

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T1 - Fabrication of composite coating particles with mullite stoichiometric ratio by a novel processing

AU - Tang, Yuefeng

AU - Li, Aidong

AU - Ling, Huiqin

AU - Wang, Yijun

AU - Shao, Qiyue

AU - Lü, Yinong

AU - Ling, Zhida

PY - 2002/6/5

Y1 - 2002/6/5

N2 - In order to solve the difficult problem of heterogeneity of different components in the procedure of ceramic preparation, a novel processing (heterogeneous nucleation-and-growth processing) was used to prepare homogeneous distribution powders. Composite homogeneous coating particles with mullite stoichiometric ratio (consisting of alpha alumina cores (average particle size 0.26 μm) with an outer homogeneous amorphous silica layer) were prepared by the heterogeneous nucleation-and- growth processing. Effects of silica content in composite coating particles versus concentration of tetraethylorthosilicate (TEOS), pH value, reaction time and reaction temperature were studied. The homogeneous amorphous silica layer on cores was confirmed by X-ray diffraction (XRD), transmission electron microscopy (TEM) and zeta potential measurement.

AB - In order to solve the difficult problem of heterogeneity of different components in the procedure of ceramic preparation, a novel processing (heterogeneous nucleation-and-growth processing) was used to prepare homogeneous distribution powders. Composite homogeneous coating particles with mullite stoichiometric ratio (consisting of alpha alumina cores (average particle size 0.26 μm) with an outer homogeneous amorphous silica layer) were prepared by the heterogeneous nucleation-and- growth processing. Effects of silica content in composite coating particles versus concentration of tetraethylorthosilicate (TEOS), pH value, reaction time and reaction temperature were studied. The homogeneous amorphous silica layer on cores was confirmed by X-ray diffraction (XRD), transmission electron microscopy (TEM) and zeta potential measurement.

KW - Composite coating particles

KW - Heterogeneous nucleation-and-growth processing

KW - Homogeneous coating

KW - Mullite stoichiometric ratio

KW - Zeta potential

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U2 - 10.1016/S0169-4332(02)00188-5

DO - 10.1016/S0169-4332(02)00188-5

M3 - 文章

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VL - 193

SP - 83

EP - 86

JO - Applied Surface Science

JF - Applied Surface Science

IS - 1-4

ER -

Fabrication of composite coating particles with mullite stoichiometric ratio by a novel processing

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Keywords

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