Microstructure and mechanical properties of the ZrB2–SiC eutectic phase obtained via induction plasma spheroidization

Shijie Sun; Yanbo Liu; Zhuang Ma; Jian Jiao; Chunrong Jiao; Jinhua Yang

doi:10.1016/j.ceramint.2021.07.074

Microstructure and mechanical properties of the ZrB₂–SiC eutectic phase obtained via induction plasma spheroidization

Shijie Sun, Yanbo Liu^*, Zhuang Ma, Jian Jiao, Chunrong Jiao, Jinhua Yang

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Aeronautical Materials

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The microstructure, phase composition and interfaces of ZrB₂-30 vol%SiC eutectic were investigated using TEM fabricated via induction plasma spheroidization(IPS). The obtained ZrB₂–SiC hypereutectic consists of the alternating H–ZrB₂ and 6H–SiC lamellas, and its composition is ZrB₂-65.04 mol.%SiC. 3 types of interfaces including SiC lamella-ZrB₂ granule, ZrB₂ lamella-SiC lamella and ZrB₂ lamella-ZrB₂ granule present a preferential orientation relationship. High-resolution TEM observations show that the ZrB₂ phase in the eutectic prefers to growth along the (101) plane. In addition, the mechanical properties of each phase in the IPS-treated ZrB₂–SiC powder were measured by nanoindentation. Hardness and elastic modulus of ZrB₂ granules were measured 17.86 GPa and 168.97 GPa, respectively, while these values were obtained 9.99 GPa and 120.66 GPa for ZrB₂–SiC eutectic phase.

Original language	English
Pages (from-to)	29120-29127
Number of pages	8
Journal	Ceramics International
Volume	47
Issue number	20
DOIs	https://doi.org/10.1016/j.ceramint.2021.07.074
Publication status	Published - 15 Oct 2021

Keywords

Eutectic
Induction plasma spheroidization
Nanoindentation
TEM
ZrB-SiC

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10.1016/j.ceramint.2021.07.074

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title = "Microstructure and mechanical properties of the ZrB2–SiC eutectic phase obtained via induction plasma spheroidization",

abstract = "The microstructure, phase composition and interfaces of ZrB2-30 vol%SiC eutectic were investigated using TEM fabricated via induction plasma spheroidization(IPS). The obtained ZrB2–SiC hypereutectic consists of the alternating H–ZrB2 and 6H–SiC lamellas, and its composition is ZrB2-65.04 mol.%SiC. 3 types of interfaces including SiC lamella-ZrB2 granule, ZrB2 lamella-SiC lamella and ZrB2 lamella-ZrB2 granule present a preferential orientation relationship. High-resolution TEM observations show that the ZrB2 phase in the eutectic prefers to growth along the (101) plane. In addition, the mechanical properties of each phase in the IPS-treated ZrB2–SiC powder were measured by nanoindentation. Hardness and elastic modulus of ZrB2 granules were measured 17.86 GPa and 168.97 GPa, respectively, while these values were obtained 9.99 GPa and 120.66 GPa for ZrB2–SiC eutectic phase.",

keywords = "Eutectic, Induction plasma spheroidization, Nanoindentation, TEM, ZrB-SiC",

author = "Shijie Sun and Yanbo Liu and Zhuang Ma and Jian Jiao and Chunrong Jiao and Jinhua Yang",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd and Techna Group S.r.l.",

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AU - Sun, Shijie

AU - Liu, Yanbo

AU - Ma, Zhuang

AU - Jiao, Jian

AU - Jiao, Chunrong

AU - Yang, Jinhua

PY - 2021/10/15

Y1 - 2021/10/15

N2 - The microstructure, phase composition and interfaces of ZrB2-30 vol%SiC eutectic were investigated using TEM fabricated via induction plasma spheroidization(IPS). The obtained ZrB2–SiC hypereutectic consists of the alternating H–ZrB2 and 6H–SiC lamellas, and its composition is ZrB2-65.04 mol.%SiC. 3 types of interfaces including SiC lamella-ZrB2 granule, ZrB2 lamella-SiC lamella and ZrB2 lamella-ZrB2 granule present a preferential orientation relationship. High-resolution TEM observations show that the ZrB2 phase in the eutectic prefers to growth along the (101) plane. In addition, the mechanical properties of each phase in the IPS-treated ZrB2–SiC powder were measured by nanoindentation. Hardness and elastic modulus of ZrB2 granules were measured 17.86 GPa and 168.97 GPa, respectively, while these values were obtained 9.99 GPa and 120.66 GPa for ZrB2–SiC eutectic phase.

AB - The microstructure, phase composition and interfaces of ZrB2-30 vol%SiC eutectic were investigated using TEM fabricated via induction plasma spheroidization(IPS). The obtained ZrB2–SiC hypereutectic consists of the alternating H–ZrB2 and 6H–SiC lamellas, and its composition is ZrB2-65.04 mol.%SiC. 3 types of interfaces including SiC lamella-ZrB2 granule, ZrB2 lamella-SiC lamella and ZrB2 lamella-ZrB2 granule present a preferential orientation relationship. High-resolution TEM observations show that the ZrB2 phase in the eutectic prefers to growth along the (101) plane. In addition, the mechanical properties of each phase in the IPS-treated ZrB2–SiC powder were measured by nanoindentation. Hardness and elastic modulus of ZrB2 granules were measured 17.86 GPa and 168.97 GPa, respectively, while these values were obtained 9.99 GPa and 120.66 GPa for ZrB2–SiC eutectic phase.

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KW - Induction plasma spheroidization

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KW - TEM

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Microstructure and mechanical properties of the ZrB₂–SiC eutectic phase obtained via induction plasma spheroidization

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