Effects of ZrB2 contents on the mechanical properties and thermal shock resistance of B4C-ZrB2 ceramics

Rujie He; Li Jing; Zhaoliang Qu; Zhili Zhou; Shigang Ai; Wei Kai

doi:10.1016/j.matdes.2015.01.002

Effects of ZrB₂ contents on the mechanical properties and thermal shock resistance of B₄C-ZrB₂ ceramics

Rujie He
, Li Jing
, Zhaoliang Qu
, Zhili Zhou
, Shigang Ai^*
, Wei Kai

^*此作品的通讯作者

Peking University
Science and Technology on Space Physics Laboratory
Beijing Jiaotong University

科研成果: 期刊稿件 › 文章 › 同行评审

44 引用（Scopus）

摘要

B₄C-ZrB₂ ceramics with different ZrB₂ contents were fabricated using hot-pressing technique. The introduction of ZrB₂ greatly promotes the sintering process, and all B₄C-ZrB₂ samples achieve full densification. With the ZrB₂ content increasing from 10 to 40vol.%, the Vickers hardness ranges from 28.8 to 34.6GPa, the flexure strength ranges from 233.3 to 523.4MPa, and the fracture toughness ranges from 6.0 to 7.0MPam^1/2, respectively. The thermal shock properties of B₄C-ZrB₂ ceramics were also investigated using water quenching method. The critical thermal shock temperature difference (δT_c) for B₄C-10vol.% ZrB₂, B₄C-20vol.% ZrB₂, B₄C-30vol.% ZrB₂ and B₄C-40vol.% ZrB₂ ceramics are 293.5, 337.5, 365.4 and 373.5°C, respectively. Considering the ceramic should maintain a relatively high initial strength, B₄C-30vol.% ZrB₂ is found to exhibit the optimal thermal shock behavior.

源语言	英语
页（从-至）	56-61
页数	6
期刊	Materials and Design
卷	71
DOI	https://doi.org/10.1016/j.matdes.2015.01.002
出版状态	已出版 - 15 4月 2015
已对外发布	是

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@article{5154af85f94c4f7b898887e95ad1211f,

title = "Effects of ZrB2 contents on the mechanical properties and thermal shock resistance of B4C-ZrB2 ceramics",

abstract = "B4C-ZrB2 ceramics with different ZrB2 contents were fabricated using hot-pressing technique. The introduction of ZrB2 greatly promotes the sintering process, and all B4C-ZrB2 samples achieve full densification. With the ZrB2 content increasing from 10 to 40vol.\%, the Vickers hardness ranges from 28.8 to 34.6GPa, the flexure strength ranges from 233.3 to 523.4MPa, and the fracture toughness ranges from 6.0 to 7.0MPam1/2, respectively. The thermal shock properties of B4C-ZrB2 ceramics were also investigated using water quenching method. The critical thermal shock temperature difference (δTc) for B4C-10vol.\% ZrB2, B4C-20vol.\% ZrB2, B4C-30vol.\% ZrB2 and B4C-40vol.\% ZrB2 ceramics are 293.5, 337.5, 365.4 and 373.5°C, respectively. Considering the ceramic should maintain a relatively high initial strength, B4C-30vol.\% ZrB2 is found to exhibit the optimal thermal shock behavior.",

keywords = "Carbide boride, Ceramics, Mechanical properties, Microstructure, Thermal shock resistance",

author = "Rujie He and Li Jing and Zhaoliang Qu and Zhili Zhou and Shigang Ai and Wei Kai",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

month = apr,

day = "15",

doi = "10.1016/j.matdes.2015.01.002",

language = "English",

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TY - JOUR

T1 - Effects of ZrB2 contents on the mechanical properties and thermal shock resistance of B4C-ZrB2 ceramics

AU - He, Rujie

AU - Jing, Li

AU - Qu, Zhaoliang

AU - Zhou, Zhili

AU - Ai, Shigang

AU - Kai, Wei

PY - 2015/4/15

Y1 - 2015/4/15

N2 - B4C-ZrB2 ceramics with different ZrB2 contents were fabricated using hot-pressing technique. The introduction of ZrB2 greatly promotes the sintering process, and all B4C-ZrB2 samples achieve full densification. With the ZrB2 content increasing from 10 to 40vol.%, the Vickers hardness ranges from 28.8 to 34.6GPa, the flexure strength ranges from 233.3 to 523.4MPa, and the fracture toughness ranges from 6.0 to 7.0MPam1/2, respectively. The thermal shock properties of B4C-ZrB2 ceramics were also investigated using water quenching method. The critical thermal shock temperature difference (δTc) for B4C-10vol.% ZrB2, B4C-20vol.% ZrB2, B4C-30vol.% ZrB2 and B4C-40vol.% ZrB2 ceramics are 293.5, 337.5, 365.4 and 373.5°C, respectively. Considering the ceramic should maintain a relatively high initial strength, B4C-30vol.% ZrB2 is found to exhibit the optimal thermal shock behavior.

AB - B4C-ZrB2 ceramics with different ZrB2 contents were fabricated using hot-pressing technique. The introduction of ZrB2 greatly promotes the sintering process, and all B4C-ZrB2 samples achieve full densification. With the ZrB2 content increasing from 10 to 40vol.%, the Vickers hardness ranges from 28.8 to 34.6GPa, the flexure strength ranges from 233.3 to 523.4MPa, and the fracture toughness ranges from 6.0 to 7.0MPam1/2, respectively. The thermal shock properties of B4C-ZrB2 ceramics were also investigated using water quenching method. The critical thermal shock temperature difference (δTc) for B4C-10vol.% ZrB2, B4C-20vol.% ZrB2, B4C-30vol.% ZrB2 and B4C-40vol.% ZrB2 ceramics are 293.5, 337.5, 365.4 and 373.5°C, respectively. Considering the ceramic should maintain a relatively high initial strength, B4C-30vol.% ZrB2 is found to exhibit the optimal thermal shock behavior.

KW - Carbide boride

KW - Ceramics

KW - Mechanical properties

KW - Microstructure

KW - Thermal shock resistance

UR - https://www.scopus.com/pages/publications/84923238566

U2 - 10.1016/j.matdes.2015.01.002

DO - 10.1016/j.matdes.2015.01.002

M3 - Article

AN - SCOPUS:84923238566

SN - 0264-1275

VL - 71

SP - 56

EP - 61

JO - Materials and Design

JF - Materials and Design

ER -

Effects of ZrB2 contents on the mechanical properties and thermal shock resistance of B4C-ZrB2 ceramics

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Effects of ZrB₂ contents on the mechanical properties and thermal shock resistance of B₄C-ZrB₂ ceramics