Microstructural evolution and oxidation behavior of TiB2–SiC–B4C composite fabricated by reactive spark plasma sintering

Chao Wu; Yunkai Li; Xingwang Cheng; Shihui Xie

doi:10.1016/j.jallcom.2018.06.219

Microstructural evolution and oxidation behavior of TiB₂–SiC–B₄C composite fabricated by reactive spark plasma sintering

Chao Wu^*
, Yunkai Li
, Xingwang Cheng
, Shihui Xie

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology
Jiangsu Bree Optronics Co., Ltd.

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

29 Citations (Scopus)

Abstract

Microstructural evolution and oxidation behavior of TiB₂–SiC–B₄C composite fabricated from Ti–SiC–B₄C system with different weight ratios via reactive SPS were investigated in detail. Based on the characterizations of SEM, XRD, TEM and HRTEM, it was found that the solid diffusion induces reactions between Ti and B₄C to form TiB₂(TiB), C and Ti(B,C,Si). Afterwards, the results of oxidation tests at 800 °C, 900 °C and 1000 °C demonstrated that the sample with highest TiB₂ contents performed the best oxidation resistance due to the lowest porosity. Furthermore, the smoothly glassy oxidation layer above substrate composed of TiO₂ and B₂O₃ became thicker with temperature increasing, meanwhile, the vaporized B₂O₃ recrystallized into plate-like, rose-like even large-monolithic grains.

Original language	English
Pages (from-to)	158-165
Number of pages	8
Journal	Journal of Alloys and Compounds
Volume	765
DOIs	https://doi.org/10.1016/j.jallcom.2018.06.219
Publication status	Published - 15 Oct 2018

Keywords

Microstructural evolution
Oxidation behavior
Reactive SPS
TiB-SiC–BC

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10.1016/j.jallcom.2018.06.219

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title = "Microstructural evolution and oxidation behavior of TiB2–SiC–B4C composite fabricated by reactive spark plasma sintering",

abstract = "Microstructural evolution and oxidation behavior of TiB2–SiC–B4C composite fabricated from Ti–SiC–B4C system with different weight ratios via reactive SPS were investigated in detail. Based on the characterizations of SEM, XRD, TEM and HRTEM, it was found that the solid diffusion induces reactions between Ti and B4C to form TiB2(TiB), C and Ti(B,C,Si). Afterwards, the results of oxidation tests at 800 °C, 900 °C and 1000 °C demonstrated that the sample with highest TiB2 contents performed the best oxidation resistance due to the lowest porosity. Furthermore, the smoothly glassy oxidation layer above substrate composed of TiO2 and B2O3 became thicker with temperature increasing, meanwhile, the vaporized B2O3 recrystallized into plate-like, rose-like even large-monolithic grains.",

keywords = "Microstructural evolution, Oxidation behavior, Reactive SPS, TiB-SiC–BC",

author = "Chao Wu and Yunkai Li and Xingwang Cheng and Shihui Xie",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = oct,

day = "15",

doi = "10.1016/j.jallcom.2018.06.219",

language = "English",

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pages = "158--165",

journal = "Journal of Alloys and Compounds",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Microstructural evolution and oxidation behavior of TiB2–SiC–B4C composite fabricated by reactive spark plasma sintering

AU - Wu, Chao

AU - Li, Yunkai

AU - Cheng, Xingwang

AU - Xie, Shihui

PY - 2018/10/15

Y1 - 2018/10/15

N2 - Microstructural evolution and oxidation behavior of TiB2–SiC–B4C composite fabricated from Ti–SiC–B4C system with different weight ratios via reactive SPS were investigated in detail. Based on the characterizations of SEM, XRD, TEM and HRTEM, it was found that the solid diffusion induces reactions between Ti and B4C to form TiB2(TiB), C and Ti(B,C,Si). Afterwards, the results of oxidation tests at 800 °C, 900 °C and 1000 °C demonstrated that the sample with highest TiB2 contents performed the best oxidation resistance due to the lowest porosity. Furthermore, the smoothly glassy oxidation layer above substrate composed of TiO2 and B2O3 became thicker with temperature increasing, meanwhile, the vaporized B2O3 recrystallized into plate-like, rose-like even large-monolithic grains.

AB - Microstructural evolution and oxidation behavior of TiB2–SiC–B4C composite fabricated from Ti–SiC–B4C system with different weight ratios via reactive SPS were investigated in detail. Based on the characterizations of SEM, XRD, TEM and HRTEM, it was found that the solid diffusion induces reactions between Ti and B4C to form TiB2(TiB), C and Ti(B,C,Si). Afterwards, the results of oxidation tests at 800 °C, 900 °C and 1000 °C demonstrated that the sample with highest TiB2 contents performed the best oxidation resistance due to the lowest porosity. Furthermore, the smoothly glassy oxidation layer above substrate composed of TiO2 and B2O3 became thicker with temperature increasing, meanwhile, the vaporized B2O3 recrystallized into plate-like, rose-like even large-monolithic grains.

KW - Microstructural evolution

KW - Oxidation behavior

KW - Reactive SPS

KW - TiB-SiC–BC

UR - https://www.scopus.com/pages/publications/85049020634

U2 - 10.1016/j.jallcom.2018.06.219

DO - 10.1016/j.jallcom.2018.06.219

M3 - Article

AN - SCOPUS:85049020634

SN - 0925-8388

VL - 765

SP - 158

EP - 165

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Microstructural evolution and oxidation behavior of TiB₂–SiC–B₄C composite fabricated by reactive spark plasma sintering

Abstract

Keywords

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