Study on the densification of composite coating particles of α-Al2O3-SiO2

Yue Feng Tang; Zhi Da Ling; Yi Nong Lu; Ai Dong Li; Hui Qin Ling; Yi Jun Wang; Qi Yue Shao

doi:10.1016/S0254-0584(02)00074-3

Study on the densification of composite coating particles of α-Al₂O₃-SiO₂

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 › Conference article › peer-review

12 Scopus citations

Abstract

Composite coating particles consisting of alpha alumina cores (α-Al₂O₃, average particle size 0.26 μm) with outer homogeneous amorphous silica layer were prepared by the heterogeneous nucleation-and-growth processing. Densification of composite coating particles was studied at different sintering temperatures. Density of samples sintered at different temperatures was measured by the Archimedes method. Densification procedure of samples was observed and analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD). Based on the density of samples, XRD and SEM, densification procedure of samples is divided into two stages: one is the transient viscous flow of amorphous silica layer below 1350 °C, the other is mullitization of composite coating particles at 1500 °C.

Original language	English
Pages (from-to)	265-269
Number of pages	5
Journal	Materials Chemistry and Physics
Volume	75
Issue number	1-3
DOIs	https://doi.org/10.1016/S0254-0584(02)00074-3
State	Published - 28 Apr 2002
Event	ICMAT 2001 Symposium C (Novel and Advanced Ceramics) - Singapore, Singapore Duration: 28 Apr 2002 → …

Keywords

Composite coating particles
Densification
Mullitization
The heterogeneous nucleation-and-growth processing
Transient viscous sintering

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10.1016/S0254-0584(02)00074-3

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title = "Study on the densification of composite coating particles of α-Al2O3-SiO2",

abstract = "Composite coating particles consisting of alpha alumina cores (α-Al2O3, average particle size 0.26 μm) with outer homogeneous amorphous silica layer were prepared by the heterogeneous nucleation-and-growth processing. Densification of composite coating particles was studied at different sintering temperatures. Density of samples sintered at different temperatures was measured by the Archimedes method. Densification procedure of samples was observed and analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD). Based on the density of samples, XRD and SEM, densification procedure of samples is divided into two stages: one is the transient viscous flow of amorphous silica layer below 1350 °C, the other is mullitization of composite coating particles at 1500 °C.",

keywords = "Composite coating particles, Densification, Mullitization, The heterogeneous nucleation-and-growth processing, Transient viscous sintering",

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/S0254-0584(02)00074-3",

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journal = "Materials Chemistry and Physics",

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T1 - Study on the densification of composite coating particles of α-Al2O3-SiO2

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 - 2002/4/28

Y1 - 2002/4/28

N2 - Composite coating particles consisting of alpha alumina cores (α-Al2O3, average particle size 0.26 μm) with outer homogeneous amorphous silica layer were prepared by the heterogeneous nucleation-and-growth processing. Densification of composite coating particles was studied at different sintering temperatures. Density of samples sintered at different temperatures was measured by the Archimedes method. Densification procedure of samples was observed and analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD). Based on the density of samples, XRD and SEM, densification procedure of samples is divided into two stages: one is the transient viscous flow of amorphous silica layer below 1350 °C, the other is mullitization of composite coating particles at 1500 °C.

AB - Composite coating particles consisting of alpha alumina cores (α-Al2O3, average particle size 0.26 μm) with outer homogeneous amorphous silica layer were prepared by the heterogeneous nucleation-and-growth processing. Densification of composite coating particles was studied at different sintering temperatures. Density of samples sintered at different temperatures was measured by the Archimedes method. Densification procedure of samples was observed and analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD). Based on the density of samples, XRD and SEM, densification procedure of samples is divided into two stages: one is the transient viscous flow of amorphous silica layer below 1350 °C, the other is mullitization of composite coating particles at 1500 °C.

KW - Composite coating particles

KW - Densification

KW - Mullitization

KW - The heterogeneous nucleation-and-growth processing

KW - Transient viscous sintering

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U2 - 10.1016/S0254-0584(02)00074-3

DO - 10.1016/S0254-0584(02)00074-3

M3 - 会议文章

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SN - 0254-0584

VL - 75

SP - 265

EP - 269

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 1-3

T2 - ICMAT 2001 Symposium C (Novel and Advanced Ceramics)

Y2 - 28 April 2002

ER -

Study on the densification of composite coating particles of α-Al₂O₃-SiO₂

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Keywords

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