Plasma spray processing of Al2O3/AlN composite powders

L.H. Cao; K.A. Khor; L. Fu; F. Boey

doi:10.1016/S0924-0136(99)00063-1

Plasma spray processing of Al₂O₃/AlN composite powders

L.H. Cao, K.A. Khor^*, L. Fu, F. Boey

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

26 Citations (Scopus)

Abstract

A novel method is proposed to prepare Al₂O₃/AlN composite powders. The composite powders were synthesized by direct nitridation of Al₂O₃ powders in Ar/N₂ plasma. The processing characteristics were studied. The results show that the particle size of the initial materials the nitrogen plasma gas flow rate and the power of the plasma generator are important factors that influence the phase composition of the Al₂O₃/AlN composite powders. Post treatment of the Al₂O₃/AlN composites in nitrogen atmosphere was carried out. Microstructure analysis showed that the composite powders are spheroids, with the small particle size AlN formed on the surface of the Al₂O₃.

Original language	English
Pages (from-to)	392-398
Journal	Journal of Materials Processing Technology
Volume	89-90
DOIs	https://doi.org/10.1016/S0924-0136(99)00063-1
Publication status	Published - 19 May 1999
Externally published	Yes
Event	4th Asia Pacific Conference on Materials Processing (APCMP 1999) - , Singapore Duration: 19 May 1999 → 20 May 1999

Research Keywords

Plasma spraying
Composite powder
Alumina and aluminium nitride
Phase composition
Post-treatment

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10.1016/S0924-0136(99)00063-1

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Cite this

@article{91af7e09e4404bce9b2c31ef60acc19e,

title = "Plasma spray processing of Al2O3/AlN composite powders",

abstract = "A novel method is proposed to prepare Al2O3/AlN composite powders. The composite powders were synthesized by direct nitridation of Al2O3 powders in Ar/N2 plasma. The processing characteristics were studied. The results show that the particle size of the initial materials the nitrogen plasma gas flow rate and the power of the plasma generator are important factors that influence the phase composition of the Al2O3/AlN composite powders. Post treatment of the Al2O3/AlN composites in nitrogen atmosphere was carried out. Microstructure analysis showed that the composite powders are spheroids, with the small particle size AlN formed on the surface of the Al2O3.",

keywords = "Plasma spraying, Composite powder, Alumina and aluminium nitride, Phase composition, Post-treatment",

author = "L.H. Cao and K.A. Khor and L. Fu and F. Boey",

year = "1999",

month = may,

day = "19",

doi = "10.1016/S0924-0136(99)00063-1",

language = "English",

volume = "89-90",

pages = "392--398",

journal = "Journal of Materials Processing Technology",

issn = "0924-0136",

publisher = "Elsevier B.V.",

note = "4th Asia Pacific Conference on Materials Processing (APCMP 1999) ; Conference date: 19-05-1999 Through 20-05-1999",

}

TY - JOUR

T1 - Plasma spray processing of Al2O3/AlN composite powders

AU - Cao, L.H.

AU - Khor, K.A.

AU - Fu, L.

AU - Boey, F.

PY - 1999/5/19

Y1 - 1999/5/19

N2 - A novel method is proposed to prepare Al2O3/AlN composite powders. The composite powders were synthesized by direct nitridation of Al2O3 powders in Ar/N2 plasma. The processing characteristics were studied. The results show that the particle size of the initial materials the nitrogen plasma gas flow rate and the power of the plasma generator are important factors that influence the phase composition of the Al2O3/AlN composite powders. Post treatment of the Al2O3/AlN composites in nitrogen atmosphere was carried out. Microstructure analysis showed that the composite powders are spheroids, with the small particle size AlN formed on the surface of the Al2O3.

AB - A novel method is proposed to prepare Al2O3/AlN composite powders. The composite powders were synthesized by direct nitridation of Al2O3 powders in Ar/N2 plasma. The processing characteristics were studied. The results show that the particle size of the initial materials the nitrogen plasma gas flow rate and the power of the plasma generator are important factors that influence the phase composition of the Al2O3/AlN composite powders. Post treatment of the Al2O3/AlN composites in nitrogen atmosphere was carried out. Microstructure analysis showed that the composite powders are spheroids, with the small particle size AlN formed on the surface of the Al2O3.

KW - Plasma spraying

KW - Composite powder

KW - Alumina and aluminium nitride

KW - Phase composition

KW - Post-treatment

UR - http://www.scopus.com/inward/record.url?scp=0344240198&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0344240198&origin=recordpage

U2 - 10.1016/S0924-0136(99)00063-1

DO - 10.1016/S0924-0136(99)00063-1

M3 - RGC 21 - Publication in refereed journal

SN - 0924-0136

VL - 89-90

SP - 392

EP - 398

JO - Journal of Materials Processing Technology

JF - Journal of Materials Processing Technology

T2 - 4th Asia Pacific Conference on Materials Processing (APCMP 1999)

Y2 - 19 May 1999 through 20 May 1999

ER -