Home > Research > Publications & Outputs > Microstructure development and properties of no...
View graph of relations

Microstructure development and properties of novel Ba-doped phase Sialon ceramics

Research output: Contribution to journalJournal articlepeer-review

Published

Standard

Microstructure development and properties of novel Ba-doped phase Sialon ceramics. / Basu, B.; Lewis, M.H.; Smith, M.E.; Bunyard, M.; Kemp, T.

In: Journal of the European Ceramic Society, Vol. 26, No. 16, 2006, p. 3919-3924.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Basu, B, Lewis, MH, Smith, ME, Bunyard, M & Kemp, T 2006, 'Microstructure development and properties of novel Ba-doped phase Sialon ceramics', Journal of the European Ceramic Society, vol. 26, no. 16, pp. 3919-3924. https://doi.org/10.1016/j.jeurceramsoc.2006.01.004

APA

Basu, B., Lewis, M. H., Smith, M. E., Bunyard, M., & Kemp, T. (2006). Microstructure development and properties of novel Ba-doped phase Sialon ceramics. Journal of the European Ceramic Society, 26(16), 3919-3924. https://doi.org/10.1016/j.jeurceramsoc.2006.01.004

Vancouver

Basu B, Lewis MH, Smith ME, Bunyard M, Kemp T. Microstructure development and properties of novel Ba-doped phase Sialon ceramics. Journal of the European Ceramic Society. 2006;26(16):3919-3924. https://doi.org/10.1016/j.jeurceramsoc.2006.01.004

Author

Basu, B. ; Lewis, M.H. ; Smith, M.E. ; Bunyard, M. ; Kemp, T. / Microstructure development and properties of novel Ba-doped phase Sialon ceramics. In: Journal of the European Ceramic Society. 2006 ; Vol. 26, No. 16. pp. 3919-3924.

Bibtex

@article{dce9433b000a4bb495302d862aa43dc8,
title = "Microstructure development and properties of novel Ba-doped phase Sialon ceramics",
abstract = "Herein, we report the microstructure and properties of the newly developed near monophasic S-Sialon ceramic, based on the composition of Ba2Si12-xAlxO2+xN16-x (x = 20.2). Appropriate amount of the precursor powders (BaCO3, α-Si3N4, AlN, Al2O3) with a targeted composition of BaAlSi5O2N7 was ball milled and hot pressed to full density in the temperature range of 1600-1750 °C for 2 h in nitrogen atmosphere. Extensive transmission electron microscopy (TEM) study has been conducted to understand the microstructure development and characterise the various morphological features in hot pressed S-Sialon. The sintering mechanism is based on the liquid phase sintering route, which involves the formation of a Ba-Al silicate liquid (<5%) with dissolved nitrogen at intergranular pockets. The experimental observation suggests that the S-phase crystallises in elongated platelet morphology with preferred growth parallel to the orthorhombic 'c' axis and primary facet planes parallel to (1 0 0) and (0 1 0). The Ba-S-phase ceramic has an acoustically measured Young modulus of 210-230 GPa, a hardness of 13 GPa and a fracture toughness of 4 MPa m1/2, little lower than typical of a ceramic with morphologically anisotropic grains contributing to bridging and pullout mechanisms. {\textcopyright} 2006 Elsevier Ltd. All rights reserved.",
keywords = "Electron microscopy, Mechanical Properties, Microstructure, S-Sialon, Sintering, Anisotropy, Barium compounds, Crystal growth, Crystal microstructure, Crystallization, Elastic moduli, Fracture toughness, Hardness, Morphology, Transmission electron microscopy, Facet planes, Liquid phase sentering, Precursor powders, Sialon ceramic, Ceramic materials",
author = "B. Basu and M.H. Lewis and M.E. Smith and M. Bunyard and T. Kemp",
year = "2006",
doi = "10.1016/j.jeurceramsoc.2006.01.004",
language = "English",
volume = "26",
pages = "3919--3924",
journal = "Journal of the European Ceramic Society",
issn = "0955-2219",
publisher = "Elsevier BV",
number = "16",

}

RIS

TY - JOUR

T1 - Microstructure development and properties of novel Ba-doped phase Sialon ceramics

AU - Basu, B.

AU - Lewis, M.H.

AU - Smith, M.E.

AU - Bunyard, M.

AU - Kemp, T.

PY - 2006

Y1 - 2006

N2 - Herein, we report the microstructure and properties of the newly developed near monophasic S-Sialon ceramic, based on the composition of Ba2Si12-xAlxO2+xN16-x (x = 20.2). Appropriate amount of the precursor powders (BaCO3, α-Si3N4, AlN, Al2O3) with a targeted composition of BaAlSi5O2N7 was ball milled and hot pressed to full density in the temperature range of 1600-1750 °C for 2 h in nitrogen atmosphere. Extensive transmission electron microscopy (TEM) study has been conducted to understand the microstructure development and characterise the various morphological features in hot pressed S-Sialon. The sintering mechanism is based on the liquid phase sintering route, which involves the formation of a Ba-Al silicate liquid (<5%) with dissolved nitrogen at intergranular pockets. The experimental observation suggests that the S-phase crystallises in elongated platelet morphology with preferred growth parallel to the orthorhombic 'c' axis and primary facet planes parallel to (1 0 0) and (0 1 0). The Ba-S-phase ceramic has an acoustically measured Young modulus of 210-230 GPa, a hardness of 13 GPa and a fracture toughness of 4 MPa m1/2, little lower than typical of a ceramic with morphologically anisotropic grains contributing to bridging and pullout mechanisms. © 2006 Elsevier Ltd. All rights reserved.

AB - Herein, we report the microstructure and properties of the newly developed near monophasic S-Sialon ceramic, based on the composition of Ba2Si12-xAlxO2+xN16-x (x = 20.2). Appropriate amount of the precursor powders (BaCO3, α-Si3N4, AlN, Al2O3) with a targeted composition of BaAlSi5O2N7 was ball milled and hot pressed to full density in the temperature range of 1600-1750 °C for 2 h in nitrogen atmosphere. Extensive transmission electron microscopy (TEM) study has been conducted to understand the microstructure development and characterise the various morphological features in hot pressed S-Sialon. The sintering mechanism is based on the liquid phase sintering route, which involves the formation of a Ba-Al silicate liquid (<5%) with dissolved nitrogen at intergranular pockets. The experimental observation suggests that the S-phase crystallises in elongated platelet morphology with preferred growth parallel to the orthorhombic 'c' axis and primary facet planes parallel to (1 0 0) and (0 1 0). The Ba-S-phase ceramic has an acoustically measured Young modulus of 210-230 GPa, a hardness of 13 GPa and a fracture toughness of 4 MPa m1/2, little lower than typical of a ceramic with morphologically anisotropic grains contributing to bridging and pullout mechanisms. © 2006 Elsevier Ltd. All rights reserved.

KW - Electron microscopy

KW - Mechanical Properties

KW - Microstructure

KW - S-Sialon

KW - Sintering

KW - Anisotropy

KW - Barium compounds

KW - Crystal growth

KW - Crystal microstructure

KW - Crystallization

KW - Elastic moduli

KW - Fracture toughness

KW - Hardness

KW - Morphology

KW - Transmission electron microscopy

KW - Facet planes

KW - Liquid phase sentering

KW - Precursor powders

KW - Sialon ceramic

KW - Ceramic materials

U2 - 10.1016/j.jeurceramsoc.2006.01.004

DO - 10.1016/j.jeurceramsoc.2006.01.004

M3 - Journal article

VL - 26

SP - 3919

EP - 3924

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

SN - 0955-2219

IS - 16

ER -