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Zirconium nitride (ZrN) ceramics were prepared via hot pressed sintering (HP) at 1750 ℃ in N2 atmosphere with ZrO2–Y2O3 as sintering additive. X-ray diffraction was applied to analyze the phase composition of the as-prepared ceramics to study the high temperature phase relation in ZrN–ZrO2–Y2O3 ternary system and establish ZrN–ZrO2–Y2O3 ternary phase diagrams. The results show that ZrN and tetragonal ZrO2 (t-ZrO2) solid solution, face-centered cubic ZrO2 (c-ZrO2) solid solution, body-centered cubic Y2O3 (c-Y2O3) solid solution coexist in the system of ZrN–ZrO2–Y2O3.


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High-temperature phase relations of ZrN–ZrO2–Y2O3 ternary system

Show Author's information Youjun LUa( )Zhenxia YUANaHongfang SHENaXiaochen HUAIbZhenkun HUANGa
School of Materials Science and Engineering, North Minzu University, Yinchuan 750021, China
School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

Abstract

Zirconium nitride (ZrN) ceramics were prepared via hot pressed sintering (HP) at 1750 ℃ in N2 atmosphere with ZrO2–Y2O3 as sintering additive. X-ray diffraction was applied to analyze the phase composition of the as-prepared ceramics to study the high temperature phase relation in ZrN–ZrO2–Y2O3 ternary system and establish ZrN–ZrO2–Y2O3 ternary phase diagrams. The results show that ZrN and tetragonal ZrO2 (t-ZrO2) solid solution, face-centered cubic ZrO2 (c-ZrO2) solid solution, body-centered cubic Y2O3 (c-Y2O3) solid solution coexist in the system of ZrN–ZrO2–Y2O3.

Keywords:

high temperature phase relations, zirconium nitride (ZrN), ternary system, X-ray diffraction
Received: 03 January 2018 Revised: 15 October 2018 Accepted: 07 November 2018 Published: 28 November 2018 Issue date: December 2018
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Publication history
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Publication history

Received: 03 January 2018
Revised: 15 October 2018
Accepted: 07 November 2018
Published: 28 November 2018
Issue date: December 2018

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© The author(s) 2018

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