High temperature flexural strength of B4C–ZrB2 ceramic at 1000–1600 °C in air

Xiangmeng Cheng; Rujie He; Zhaoliang Qu; Shigang Ai; Daining Fang

doi:10.1016/j.ceramint.2015.07.174

High temperature flexural strength of B₄C–ZrB₂ ceramic at 1000–1600 °C in air

Xiangmeng Cheng, Rujie He^*, Zhaoliang Qu, Shigang Ai, Daining Fang

^*Corresponding author for this work

Institute of Advanced Structure Technology

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

30 Citations (Scopus)

Abstract

B₄C-30 vol% ZrB₂ ceramic was prepared using hot pressing. The room temperature and high temperature flexural strength of the as-prepared ceramic were investigated. The room temperature flexural strength was measured to be 604.5 MPa. When the ceramic was tested at 1000 °C, the flexural strength kept nearly the same as room temperature flexural strength, because no serious oxidation happens and the oxide product can heal the cracks on the surface. When the temperature was above 1000 °C, oxidation becomes severer and the mechanical properties decrease sharply. The flexural strength at 1200, 1400 and 1600 °C is 451.5, 287.5 and 202.5 MPa, respectively. Microstructure evolution of the B₄C–ZrB₂ ceramic was also investigated.

Original language	English
Pages (from-to)	14574-14578
Number of pages	5
Journal	Ceramics International
Volume	41
Issue number	10
DOIs	https://doi.org/10.1016/j.ceramint.2015.07.174
Publication status	Published - Dec 2015

Keywords

BC
C. Mechanical properties
High temperature
Oxidation

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10.1016/j.ceramint.2015.07.174

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title = "High temperature flexural strength of B4C–ZrB2 ceramic at 1000–1600 °C in air",

abstract = "B4C-30 vol% ZrB2 ceramic was prepared using hot pressing. The room temperature and high temperature flexural strength of the as-prepared ceramic were investigated. The room temperature flexural strength was measured to be 604.5 MPa. When the ceramic was tested at 1000 °C, the flexural strength kept nearly the same as room temperature flexural strength, because no serious oxidation happens and the oxide product can heal the cracks on the surface. When the temperature was above 1000 °C, oxidation becomes severer and the mechanical properties decrease sharply. The flexural strength at 1200, 1400 and 1600 °C is 451.5, 287.5 and 202.5 MPa, respectively. Microstructure evolution of the B4C–ZrB2 ceramic was also investigated.",

keywords = "BC, C. Mechanical properties, High temperature, Oxidation",

author = "Xiangmeng Cheng and Rujie He and Zhaoliang Qu and Shigang Ai and Daining Fang",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd and Techna Group S.r.l.",

year = "2015",

month = dec,

doi = "10.1016/j.ceramint.2015.07.174",

language = "English",

volume = "41",

pages = "14574--14578",

journal = "Ceramics International",

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TY - JOUR

T1 - High temperature flexural strength of B4C–ZrB2 ceramic at 1000–1600 °C in air

AU - Cheng, Xiangmeng

AU - He, Rujie

AU - Qu, Zhaoliang

AU - Ai, Shigang

AU - Fang, Daining

PY - 2015/12

Y1 - 2015/12

N2 - B4C-30 vol% ZrB2 ceramic was prepared using hot pressing. The room temperature and high temperature flexural strength of the as-prepared ceramic were investigated. The room temperature flexural strength was measured to be 604.5 MPa. When the ceramic was tested at 1000 °C, the flexural strength kept nearly the same as room temperature flexural strength, because no serious oxidation happens and the oxide product can heal the cracks on the surface. When the temperature was above 1000 °C, oxidation becomes severer and the mechanical properties decrease sharply. The flexural strength at 1200, 1400 and 1600 °C is 451.5, 287.5 and 202.5 MPa, respectively. Microstructure evolution of the B4C–ZrB2 ceramic was also investigated.

AB - B4C-30 vol% ZrB2 ceramic was prepared using hot pressing. The room temperature and high temperature flexural strength of the as-prepared ceramic were investigated. The room temperature flexural strength was measured to be 604.5 MPa. When the ceramic was tested at 1000 °C, the flexural strength kept nearly the same as room temperature flexural strength, because no serious oxidation happens and the oxide product can heal the cracks on the surface. When the temperature was above 1000 °C, oxidation becomes severer and the mechanical properties decrease sharply. The flexural strength at 1200, 1400 and 1600 °C is 451.5, 287.5 and 202.5 MPa, respectively. Microstructure evolution of the B4C–ZrB2 ceramic was also investigated.

KW - BC

KW - C. Mechanical properties

KW - High temperature

KW - Oxidation

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U2 - 10.1016/j.ceramint.2015.07.174

DO - 10.1016/j.ceramint.2015.07.174

M3 - Article

AN - SCOPUS:84939489043

SN - 0272-8842

VL - 41

SP - 14574

EP - 14578

JO - Ceramics International

JF - Ceramics International

IS - 10

ER -

High temperature flexural strength of B₄C–ZrB₂ ceramic at 1000–1600 °C in air

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Keywords

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