Ultra-low temperature reactive spark plasma sintering of ZrB2-hBN ceramics

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Ultra-low temperature reactive spark plasma sintering of ZrB2-hBN ceramics. / Zou, Ji; Zhang, Guo Jun; Shen, Zhi Jian; Binner, JGP.

In: Journal of the European Ceramic Society, Vol. 36, No. 15, 11.2016, p. 3637-3645.

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@article{7c10f2af4cf4479182aa27609731b89f,
title = "Ultra-low temperature reactive spark plasma sintering of ZrB2-hBN ceramics",
abstract = "Starting from ZrN and amorphous boron, dense ZrB2 ceramics with 37vol% hexagonal BN were consolidated by spark plasma sintering. Benefiting from the moderate exothermic reaction between ZrN and B and the resultant fine powder generated, ZrB2-BN ceramics with relative density of 94% could be reached at 1100°C, further improved to 97% by 1550°C. The effects of sintering temperature and holding time on the densification behavior, microstructural evolution and mechanical properties of ZrB2-BN ceramics were investigated. ZrB2-37vol%BN ceramics densified at 1700°C exhibited attractive mechanical performance: a three-point bending strength of 353MPa, a Vicker's hardness of 6.7GPa and a Young's modulus of 197.5GPa. Note that its strength dropped sharply to 191MPa measured at 1300°C. The combination of low sintering temperature (1100-1550°C), low Young's modulus (180-200GPa) and relatively high strength (200-350MPa) make reactively sintered ZrB2-BN composites as promising matrix for continuous fiber reinforced composites.",
keywords = "Hexagonal boron nitride, Mechanical property, Reactive sintering, Spark plasma sintering, Ultra-High Temperature Ceramics",
author = "Ji Zou and Zhang, {Guo Jun} and Shen, {Zhi Jian} and JGP Binner",
year = "2016",
month = nov,
doi = "10.1016/j.jeurceramsoc.2016.01.044",
language = "English",
volume = "36",
pages = "3637--3645",
journal = "Journal of the European Ceramic Society",
issn = "0955-2219",
publisher = "Elsevier",
number = "15",

}

RIS

TY - JOUR

T1 - Ultra-low temperature reactive spark plasma sintering of ZrB2-hBN ceramics

AU - Zou, Ji

AU - Zhang, Guo Jun

AU - Shen, Zhi Jian

AU - Binner, JGP

PY - 2016/11

Y1 - 2016/11

N2 - Starting from ZrN and amorphous boron, dense ZrB2 ceramics with 37vol% hexagonal BN were consolidated by spark plasma sintering. Benefiting from the moderate exothermic reaction between ZrN and B and the resultant fine powder generated, ZrB2-BN ceramics with relative density of 94% could be reached at 1100°C, further improved to 97% by 1550°C. The effects of sintering temperature and holding time on the densification behavior, microstructural evolution and mechanical properties of ZrB2-BN ceramics were investigated. ZrB2-37vol%BN ceramics densified at 1700°C exhibited attractive mechanical performance: a three-point bending strength of 353MPa, a Vicker's hardness of 6.7GPa and a Young's modulus of 197.5GPa. Note that its strength dropped sharply to 191MPa measured at 1300°C. The combination of low sintering temperature (1100-1550°C), low Young's modulus (180-200GPa) and relatively high strength (200-350MPa) make reactively sintered ZrB2-BN composites as promising matrix for continuous fiber reinforced composites.

AB - Starting from ZrN and amorphous boron, dense ZrB2 ceramics with 37vol% hexagonal BN were consolidated by spark plasma sintering. Benefiting from the moderate exothermic reaction between ZrN and B and the resultant fine powder generated, ZrB2-BN ceramics with relative density of 94% could be reached at 1100°C, further improved to 97% by 1550°C. The effects of sintering temperature and holding time on the densification behavior, microstructural evolution and mechanical properties of ZrB2-BN ceramics were investigated. ZrB2-37vol%BN ceramics densified at 1700°C exhibited attractive mechanical performance: a three-point bending strength of 353MPa, a Vicker's hardness of 6.7GPa and a Young's modulus of 197.5GPa. Note that its strength dropped sharply to 191MPa measured at 1300°C. The combination of low sintering temperature (1100-1550°C), low Young's modulus (180-200GPa) and relatively high strength (200-350MPa) make reactively sintered ZrB2-BN composites as promising matrix for continuous fiber reinforced composites.

KW - Hexagonal boron nitride

KW - Mechanical property

KW - Reactive sintering

KW - Spark plasma sintering

KW - Ultra-High Temperature Ceramics

U2 - 10.1016/j.jeurceramsoc.2016.01.044

DO - 10.1016/j.jeurceramsoc.2016.01.044

M3 - Article

AN - SCOPUS:84957398250

VL - 36

SP - 3637

EP - 3645

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

SN - 0955-2219

IS - 15

ER -