Hot isostatic pressing of Si3N4 with Y2O3 additions

O. Yeheskel; Y. Gefen; M. Talianker

doi:10.1007/BF00540444

Hot isostatic pressing of Si₃N₄ with Y₂O₃ additions

O. Yeheskel, Y. Gefen, M. Talianker

Department of Materials Engineering

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4 Scopus citations

Abstract

The effect of Y₂O₃ additive on the properties of hot isostatically pressed silicon nitride was studied. The influence of small additions of Y₂O₃ on the densification of silicon nitride was investigated. The density and elastic moduli of the product increase with increasing of the Y₂O₃ additions. The hot isostatically pressed pure silicon nitride consists of α-Si₃N₄, β-Si₃N₄and Si₂N₂O; phase content of the hot isostatically pressed silicon nitride with 10 wt % Y₂O₃addition consists of β-Si₃N₄, yttrium silicate and Y₂Si₃O₃N₄. The effect of the outgassing of the specimens prior to hot isostatical pressing on the properties of the final material is discussed.

Original language	English
Pages (from-to)	745-752
Number of pages	8
Journal	Journal of Materials Science
Volume	19
Issue number	3
DOIs	https://doi.org/10.1007/BF00540444
State	Published - 1 Mar 1984

ASJC Scopus subject areas

Materials Science (all)
Mechanics of Materials
Mechanical Engineering

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title = "Hot isostatic pressing of Si3N4 with Y2O3 additions",

abstract = "The effect of Y2O3 additive on the properties of hot isostatically pressed silicon nitride was studied. The influence of small additions of Y2O3 on the densification of silicon nitride was investigated. The density and elastic moduli of the product increase with increasing of the Y2O3 additions. The hot isostatically pressed pure silicon nitride consists of α-Si3N4, β-Si3N4and Si2N2O; phase content of the hot isostatically pressed silicon nitride with 10 wt % Y2O3addition consists of β-Si3N4, yttrium silicate and Y2Si3O3N4. The effect of the outgassing of the specimens prior to hot isostatical pressing on the properties of the final material is discussed.",

author = "O. Yeheskel and Y. Gefen and M. Talianker",

year = "1984",

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T1 - Hot isostatic pressing of Si3N4 with Y2O3 additions

AU - Yeheskel, O.

AU - Gefen, Y.

AU - Talianker, M.

PY - 1984/3/1

Y1 - 1984/3/1

N2 - The effect of Y2O3 additive on the properties of hot isostatically pressed silicon nitride was studied. The influence of small additions of Y2O3 on the densification of silicon nitride was investigated. The density and elastic moduli of the product increase with increasing of the Y2O3 additions. The hot isostatically pressed pure silicon nitride consists of α-Si3N4, β-Si3N4and Si2N2O; phase content of the hot isostatically pressed silicon nitride with 10 wt % Y2O3addition consists of β-Si3N4, yttrium silicate and Y2Si3O3N4. The effect of the outgassing of the specimens prior to hot isostatical pressing on the properties of the final material is discussed.

AB - The effect of Y2O3 additive on the properties of hot isostatically pressed silicon nitride was studied. The influence of small additions of Y2O3 on the densification of silicon nitride was investigated. The density and elastic moduli of the product increase with increasing of the Y2O3 additions. The hot isostatically pressed pure silicon nitride consists of α-Si3N4, β-Si3N4and Si2N2O; phase content of the hot isostatically pressed silicon nitride with 10 wt % Y2O3addition consists of β-Si3N4, yttrium silicate and Y2Si3O3N4. The effect of the outgassing of the specimens prior to hot isostatical pressing on the properties of the final material is discussed.

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ER -

Hot isostatic pressing of Si₃N₄ with Y₂O₃ additions

Abstract

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