Effects of different Si3N4 starting powders and sintering conditions on the grain morphology and mechanical properties of α-SiAlON ceramics

S. R. Kushan; H. Mandal

Effects of different Si₃N₄ starting powders and sintering conditions on the grain morphology and mechanical properties of α-SiAlON ceramics

S. R. Kushan^*, H. Mandal

^*Corresponding author for this work

Anadolu University

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

The preparation of α-SiAlON microstructures by β-Si₃N₄ starting powder or by applying nucleation step during sintering was studied. The application of sintering cycles on nucleation effect and the effect of different Si₃N₄ starting powders on the grain morphology of α-SiAlON ceramics and mechanical properties were investigated. Nucleation occured during the dwell time above eutectic temperature. The elongation in the grain was due to the pre-sintering cycles prior the final sintering at 1800°celcius. The results showed that the toughness was improved by the elongated grain morphology.

Original language	English
Pages (from-to)	417-420
Number of pages	4
Journal	Key Engineering Materials
Volume	206-213
Issue number	I
Publication status	Published - 2001
Externally published	Yes
Event	7th Conference of the European Ceramic Society - Brugge, Belgium Duration: 9 Sept 2001 → 13 Sept 2001

Keywords

Grain morphology
Sintering conditions
Starting powders
α-SiAlON

Cite this

@article{a3d01a180c8f4f1eaa0b7c1e3c694127,

title = "Effects of different Si3N4 starting powders and sintering conditions on the grain morphology and mechanical properties of α-SiAlON ceramics",

abstract = "The preparation of α-SiAlON microstructures by β-Si3N4 starting powder or by applying nucleation step during sintering was studied. The application of sintering cycles on nucleation effect and the effect of different Si3N4 starting powders on the grain morphology of α-SiAlON ceramics and mechanical properties were investigated. Nucleation occured during the dwell time above eutectic temperature. The elongation in the grain was due to the pre-sintering cycles prior the final sintering at 1800°celcius. The results showed that the toughness was improved by the elongated grain morphology.",

keywords = "Grain morphology, Sintering conditions, Starting powders, α-SiAlON",

author = "Kushan, {S. R.} and H. Mandal",

year = "2001",

language = "English",

volume = "206-213",

pages = "417--420",

journal = "Key Engineering Materials",

issn = "1013-9826",

publisher = "Trans Tech Publications Ltd",

number = "I",

note = "7th Conference of the European Ceramic Society ; Conference date: 09-09-2001 Through 13-09-2001",

}

TY - JOUR

T1 - Effects of different Si3N4 starting powders and sintering conditions on the grain morphology and mechanical properties of α-SiAlON ceramics

AU - Kushan, S. R.

AU - Mandal, H.

PY - 2001

Y1 - 2001

N2 - The preparation of α-SiAlON microstructures by β-Si3N4 starting powder or by applying nucleation step during sintering was studied. The application of sintering cycles on nucleation effect and the effect of different Si3N4 starting powders on the grain morphology of α-SiAlON ceramics and mechanical properties were investigated. Nucleation occured during the dwell time above eutectic temperature. The elongation in the grain was due to the pre-sintering cycles prior the final sintering at 1800°celcius. The results showed that the toughness was improved by the elongated grain morphology.

AB - The preparation of α-SiAlON microstructures by β-Si3N4 starting powder or by applying nucleation step during sintering was studied. The application of sintering cycles on nucleation effect and the effect of different Si3N4 starting powders on the grain morphology of α-SiAlON ceramics and mechanical properties were investigated. Nucleation occured during the dwell time above eutectic temperature. The elongation in the grain was due to the pre-sintering cycles prior the final sintering at 1800°celcius. The results showed that the toughness was improved by the elongated grain morphology.

KW - Grain morphology

KW - Sintering conditions

KW - Starting powders

KW - α-SiAlON

UR - http://www.scopus.com/inward/record.url?scp=0034782696&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0034782696

SN - 1013-9826

VL - 206-213

SP - 417

EP - 420

JO - Key Engineering Materials

JF - Key Engineering Materials

IS - I

T2 - 7th Conference of the European Ceramic Society

Y2 - 9 September 2001 through 13 September 2001

ER -

Effects of different Si₃N₄ starting powders and sintering conditions on the grain morphology and mechanical properties of α-SiAlON ceramics

Abstract

Keywords

Other files and links

Fingerprint

Cite this