Preparation of composite coating particles of α-Al2O3-SiO2 by heterogeneous nucleation-and-growth processing

Yue feng Tang; Zhi da Ling; Yi nong Lu; Ai dong Li; Hui qin Ling; Yi jun Wang; Qi yue Shao

doi:10.1016/S0167-577X(02)00523-2

Preparation of composite coating particles of α-Al₂O₃-SiO₂ by heterogeneous nucleation-and-growth processing

Yue feng Tang, Zhi da Ling, Yi nong Lu, Ai dong Li, Hui qin Ling, Yi jun Wang, Qi yue Shao

College of Materials Science and Engineering

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

16 Scopus citations

Abstract

In order to solve the difficult problem of heterogeneity of different components in the procedure of ceramic preparation, heterogeneous nucleation-and-growth processing is used to prepare the homogeneous distribution powders. Composite coating particles consisting of alpha alumina cores (average particle size 0.57 μm) with an outer amorphous silica layer are prepared by the heterogeneous nucleation-and-growth processing. The amorphous silica layer on cores is confirmed by X-ray diffraction (XRD), transmission electron microscopy (TEM) and zeta-potential measurement. Effects of silica content in composite coating particles versus concentration of tetraethylorthosilicate (TEOS), pH value, reaction time and reaction temperature are studied.

Original language	English
Pages (from-to)	446-449
Number of pages	4
Journal	Materials Letters
Volume	56
Issue number	4
DOIs	https://doi.org/10.1016/S0167-577X(02)00523-2
State	Published - Oct 2002

Keywords

Composite coating particles
Heterogeneous nucleation-and-growth processing
Mullite
Preparation
Tetraethylorthosilicate (TEOS)
Zeta potential

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10.1016/S0167-577X(02)00523-2

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title = "Preparation of composite coating particles of α-Al2O3-SiO2 by heterogeneous nucleation-and-growth processing",

abstract = "In order to solve the difficult problem of heterogeneity of different components in the procedure of ceramic preparation, heterogeneous nucleation-and-growth processing is used to prepare the homogeneous distribution powders. Composite coating particles consisting of alpha alumina cores (average particle size 0.57 μm) with an outer amorphous silica layer are prepared by the heterogeneous nucleation-and-growth processing. The amorphous silica layer on cores is confirmed by X-ray diffraction (XRD), transmission electron microscopy (TEM) and zeta-potential measurement. Effects of silica content in composite coating particles versus concentration of tetraethylorthosilicate (TEOS), pH value, reaction time and reaction temperature are studied.",

keywords = "Composite coating particles, Heterogeneous nucleation-and-growth processing, Mullite, Preparation, Tetraethylorthosilicate (TEOS), Zeta potential",

author = "Tang, {Yue feng} and Ling, {Zhi da} and Lu, {Yi nong} and Li, {Ai dong} and Ling, {Hui qin} and Wang, {Yi jun} and Shao, {Qi yue}",

year = "2002",

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doi = "10.1016/S0167-577X(02)00523-2",

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T1 - Preparation of composite coating particles of α-Al2O3-SiO2 by heterogeneous nucleation-and-growth processing

AU - Tang, Yue feng

AU - Ling, Zhi da

AU - Lu, Yi nong

AU - Li, Ai dong

AU - Ling, Hui qin

AU - Wang, Yi jun

AU - Shao, Qi yue

PY - 2002/10

Y1 - 2002/10

N2 - In order to solve the difficult problem of heterogeneity of different components in the procedure of ceramic preparation, heterogeneous nucleation-and-growth processing is used to prepare the homogeneous distribution powders. Composite coating particles consisting of alpha alumina cores (average particle size 0.57 μm) with an outer amorphous silica layer are prepared by the heterogeneous nucleation-and-growth processing. The amorphous silica layer on cores is confirmed by X-ray diffraction (XRD), transmission electron microscopy (TEM) and zeta-potential measurement. Effects of silica content in composite coating particles versus concentration of tetraethylorthosilicate (TEOS), pH value, reaction time and reaction temperature are studied.

AB - In order to solve the difficult problem of heterogeneity of different components in the procedure of ceramic preparation, heterogeneous nucleation-and-growth processing is used to prepare the homogeneous distribution powders. Composite coating particles consisting of alpha alumina cores (average particle size 0.57 μm) with an outer amorphous silica layer are prepared by the heterogeneous nucleation-and-growth processing. The amorphous silica layer on cores is confirmed by X-ray diffraction (XRD), transmission electron microscopy (TEM) and zeta-potential measurement. Effects of silica content in composite coating particles versus concentration of tetraethylorthosilicate (TEOS), pH value, reaction time and reaction temperature are studied.

KW - Composite coating particles

KW - Heterogeneous nucleation-and-growth processing

KW - Mullite

KW - Preparation

KW - Tetraethylorthosilicate (TEOS)

KW - Zeta potential

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DO - 10.1016/S0167-577X(02)00523-2

M3 - 文章

AN - SCOPUS:0036796038

SN - 0167-577X

VL - 56

SP - 446

EP - 449

JO - Materials Letters

JF - Materials Letters

IS - 4

ER -

Preparation of composite coating particles of α-Al₂O₃-SiO₂ by heterogeneous nucleation-and-growth processing

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Keywords

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