Microstructure and mechanical properties of super-hard B                         4                         C ceramic fabricated by spark plasma sintering with (Ti                         3                         SiC                         2                         +Si) as sintering aid

Qi Song; Zhao Hui Zhang; Zheng Yang Hu; Shi Pan Yin; Hao Wang; Zhen Wu Ma

doi:10.1016/j.ceramint.2019.01.204

Microstructure and mechanical properties of super-hard B ₄ C ceramic fabricated by spark plasma sintering with (Ti ₃ SiC ₂ +Si) as sintering aid

Qi Song
, Zhao Hui Zhang^*
, Zheng Yang Hu
, Shi Pan Yin
, Hao Wang
, Zhen Wu Ma

^*此作品的通讯作者

材料学院

科研成果: 期刊稿件 › 文章 › 同行评审

47 引用（Scopus）

摘要

B ₄ C ceramics were fabricated by spark plasma sintering with 5% (Ti ₃ SiC ₂ +Si) as sintering aid. The effects of sintering temperatures and sintering aid on microstructures and properties of B ₄ C ceramics were investigated. The results indicated that the addition of a small amount of (Ti ₃ SiC ₂ +Si) could effectively improve the sintering characteristic of B ₄ C ceramics and reduce the sintering temperature. The as-sintered ceramics fabricated at 1700 °C exhibited excellent mechanical properties, including a super-high Vickers hardness of 38.4 GPa, a high flexural strength of 457.6 MPa and a good fracture toughness of 5.61 MPa m ^0.5 . Following reasons may be responsible for the improvement of the hardness of B ₄ C ceramics: high relative density due to the combination use of (Ti ₃ SiC ₂ +Si) sintering aids and SPS technology, fine-grained structure of the B ₄ C ceramics benefited from the low sintering temperature, formation of the second phases TiB ₂ and SiC by chemical reaction and existence of the nano-sized unit of (TiB ₂ +SiC) in B ₄ C grains.

源语言	英语
页（从-至）	8790-8797
页数	8
期刊	Ceramics International
卷	45
期	7
DOI	https://doi.org/10.1016/j.ceramint.2019.01.204
出版状态	已出版 - 5月 2019

联合国可持续发展目标

此成果有助于实现下列可持续发展目标：

可持续发展目标 3 良好健康与福祉

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10.1016/j.ceramint.2019.01.204

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引用此

Song, Q., Zhang, Z. H., Hu, Z. Y., Yin, S. P., Wang, H., & Ma, Z. W. (2019). Microstructure and mechanical properties of super-hard B ₄ C ceramic fabricated by spark plasma sintering with (Ti ₃ SiC ₂ +Si) as sintering aid Ceramics International, 45(7), 8790-8797. https://doi.org/10.1016/j.ceramint.2019.01.204

Song, Qi ; Zhang, Zhao Hui ; Hu, Zheng Yang 等. / Microstructure and mechanical properties of super-hard B ₄ C ceramic fabricated by spark plasma sintering with (Ti ₃ SiC ₂ +Si) as sintering aid 在: Ceramics International. 2019 ; 卷 45, 号码 7. 页码 8790-8797.

@article{a0ded96ea33f48b5b536c14f15841cad,

title = " Microstructure and mechanical properties of super-hard B 4 C ceramic fabricated by spark plasma sintering with (Ti 3 SiC 2 +Si) as sintering aid ",

abstract = " B 4 C ceramics were fabricated by spark plasma sintering with 5\% (Ti 3 SiC 2 +Si) as sintering aid. The effects of sintering temperatures and sintering aid on microstructures and properties of B 4 C ceramics were investigated. The results indicated that the addition of a small amount of (Ti 3 SiC 2 +Si) could effectively improve the sintering characteristic of B 4 C ceramics and reduce the sintering temperature. The as-sintered ceramics fabricated at 1700 °C exhibited excellent mechanical properties, including a super-high Vickers hardness of 38.4 GPa, a high flexural strength of 457.6 MPa and a good fracture toughness of 5.61 MPa m 0.5 . Following reasons may be responsible for the improvement of the hardness of B 4 C ceramics: high relative density due to the combination use of (Ti 3 SiC 2 +Si) sintering aids and SPS technology, fine-grained structure of the B 4 C ceramics benefited from the low sintering temperature, formation of the second phases TiB 2 and SiC by chemical reaction and existence of the nano-sized unit of (TiB 2 +SiC) in B 4 C grains.",

keywords = "B C ceramics, Mechanical properties, Microstructures, Spark plasma sintering, Super-high hardness",

author = "Qi Song and Zhang, \{Zhao Hui\} and Hu, \{Zheng Yang\} and Yin, \{Shi Pan\} and Hao Wang and Ma, \{Zhen Wu\}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd and Techna Group S.r.l.",

year = "2019",

month = may,

doi = "10.1016/j.ceramint.2019.01.204",

language = "English",

volume = "45",

pages = "8790--8797",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd.",

number = "7",

}

Song, Q, Zhang, ZH, Hu, ZY, Yin, SP, Wang, H & Ma, ZW 2019, ' Microstructure and mechanical properties of super-hard B ₄ C ceramic fabricated by spark plasma sintering with (Ti ₃ SiC ₂ +Si) as sintering aid ', Ceramics International, 卷 45, 号码 7, 页码 8790-8797. https://doi.org/10.1016/j.ceramint.2019.01.204

Microstructure and mechanical properties of super-hard B ₄ C ceramic fabricated by spark plasma sintering with (Ti ₃ SiC ₂ +Si) as sintering aid . / Song, Qi; Zhang, Zhao Hui; Hu, Zheng Yang 等.
在: Ceramics International, 卷 45, 号码 7, 05.2019, 页码 8790-8797.

科研成果: 期刊稿件 › 文章 › 同行评审

TY - JOUR

T1 - Microstructure and mechanical properties of super-hard B 4 C ceramic fabricated by spark plasma sintering with (Ti 3 SiC 2 +Si) as sintering aid

AU - Song, Qi

AU - Zhang, Zhao Hui

AU - Hu, Zheng Yang

AU - Yin, Shi Pan

AU - Wang, Hao

AU - Ma, Zhen Wu

PY - 2019/5

Y1 - 2019/5

N2 - B 4 C ceramics were fabricated by spark plasma sintering with 5% (Ti 3 SiC 2 +Si) as sintering aid. The effects of sintering temperatures and sintering aid on microstructures and properties of B 4 C ceramics were investigated. The results indicated that the addition of a small amount of (Ti 3 SiC 2 +Si) could effectively improve the sintering characteristic of B 4 C ceramics and reduce the sintering temperature. The as-sintered ceramics fabricated at 1700 °C exhibited excellent mechanical properties, including a super-high Vickers hardness of 38.4 GPa, a high flexural strength of 457.6 MPa and a good fracture toughness of 5.61 MPa m 0.5 . Following reasons may be responsible for the improvement of the hardness of B 4 C ceramics: high relative density due to the combination use of (Ti 3 SiC 2 +Si) sintering aids and SPS technology, fine-grained structure of the B 4 C ceramics benefited from the low sintering temperature, formation of the second phases TiB 2 and SiC by chemical reaction and existence of the nano-sized unit of (TiB 2 +SiC) in B 4 C grains.

AB - B 4 C ceramics were fabricated by spark plasma sintering with 5% (Ti 3 SiC 2 +Si) as sintering aid. The effects of sintering temperatures and sintering aid on microstructures and properties of B 4 C ceramics were investigated. The results indicated that the addition of a small amount of (Ti 3 SiC 2 +Si) could effectively improve the sintering characteristic of B 4 C ceramics and reduce the sintering temperature. The as-sintered ceramics fabricated at 1700 °C exhibited excellent mechanical properties, including a super-high Vickers hardness of 38.4 GPa, a high flexural strength of 457.6 MPa and a good fracture toughness of 5.61 MPa m 0.5 . Following reasons may be responsible for the improvement of the hardness of B 4 C ceramics: high relative density due to the combination use of (Ti 3 SiC 2 +Si) sintering aids and SPS technology, fine-grained structure of the B 4 C ceramics benefited from the low sintering temperature, formation of the second phases TiB 2 and SiC by chemical reaction and existence of the nano-sized unit of (TiB 2 +SiC) in B 4 C grains.

KW - B C ceramics

KW - Mechanical properties

KW - Microstructures

KW - Spark plasma sintering

KW - Super-high hardness

UR - https://www.scopus.com/pages/publications/85060676518

U2 - 10.1016/j.ceramint.2019.01.204

DO - 10.1016/j.ceramint.2019.01.204

M3 - Article

AN - SCOPUS:85060676518

SN - 0272-8842

VL - 45

SP - 8790

EP - 8797

JO - Ceramics International

JF - Ceramics International

IS - 7

ER -

Song Q, Zhang ZH, Hu ZY, Yin SP, Wang H, Ma ZW. Microstructure and mechanical properties of super-hard B ₄ C ceramic fabricated by spark plasma sintering with (Ti ₃ SiC ₂ +Si) as sintering aid Ceramics International. 2019 5月;45(7):8790-8797. doi: 10.1016/j.ceramint.2019.01.204

Microstructure and mechanical properties of super-hard B 4 C ceramic fabricated by spark plasma sintering with (Ti 3 SiC 2 +Si) as sintering aid

摘要

联合国可持续发展目标

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Microstructure and mechanical properties of super-hard B ₄ C ceramic fabricated by spark plasma sintering with (Ti ₃ SiC ₂ +Si) as sintering aid