Effect of B4C addition on the microstructures and mechanical properties of ZrB2-SiC ceramics

Jung Min Chae; Sung Min Lee; Yoon Suk Oh; Hyung Tae Kim; Kyung Ja Kim; Sahn Nahm; Seongwon Kim

doi:10.4191/KCERS.2010.47.6.578

Effect of B₄C addition on the microstructures and mechanical properties of ZrB₂-SiC ceramics

Jung Min Chae, Sung Min Lee, Yoon Suk Oh, Hyung Tae Kim, Kyung Ja Kim, Sahn Nahm, Seongwon Kim

Department of Materials Science and Engineering

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

4 Citations (Scopus)

Abstract

ZrB₂ has a melting point of 3245°C and a relatively low density of 6.1 g/cm³, which makes this a candidate for application to ultrahigh temperature environments over 2000°C. Beside mese properties, ZrB₂ is known to have excellent resistance to thermal shock and oxidation compared with other non-oxide engineering ceramics. In order to enhance such oxidation resistance, SiC was frequently added to ZrB ₂-based systems. Due to nonsinterability of ZrB₂-based ceramics, research on the sintering aids such as B₄C or MoSi ₂ becomes popular recently. In this study, densification and high-temperature properties of ZrB₂-SiC ceramics especially with B₄C are investigated. ZrB₂-20 vol% SiC system was selected as a basic composition and B₄C or C was added to this system in some extents. Mixed powders were sintered using hot pressing (HP). With sintered bodies, densification behavior and high-temperature (up to 1400°C) properties such as flexural strength, hardness, and so on were examined.

Original language	English
Pages (from-to)	578-582
Number of pages	5
Journal	Journal of the Korean Ceramic Society
Volume	47
Issue number	6
DOIs	https://doi.org/10.4191/KCERS.2010.47.6.578
Publication status	Published - 2010

Keywords

BC addition
High-temperature mechanical properties
Ultra-high temperature ceramics (UHTCs)
ZrB-SiC

ASJC Scopus subject areas

Ceramics and Composites

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.4191/KCERS.2010.47.6.578

Cite this

@article{0a36cd763a054d48b2ba2c78fdba491a,

title = "Effect of B4C addition on the microstructures and mechanical properties of ZrB2-SiC ceramics",

abstract = "ZrB2 has a melting point of 3245°C and a relatively low density of 6.1 g/cm3, which makes this a candidate for application to ultrahigh temperature environments over 2000°C. Beside mese properties, ZrB2 is known to have excellent resistance to thermal shock and oxidation compared with other non-oxide engineering ceramics. In order to enhance such oxidation resistance, SiC was frequently added to ZrB 2-based systems. Due to nonsinterability of ZrB2-based ceramics, research on the sintering aids such as B4C or MoSi 2 becomes popular recently. In this study, densification and high-temperature properties of ZrB2-SiC ceramics especially with B4C are investigated. ZrB2-20 vol% SiC system was selected as a basic composition and B4C or C was added to this system in some extents. Mixed powders were sintered using hot pressing (HP). With sintered bodies, densification behavior and high-temperature (up to 1400°C) properties such as flexural strength, hardness, and so on were examined.",

keywords = "BC addition, High-temperature mechanical properties, Ultra-high temperature ceramics (UHTCs), ZrB-SiC",

author = "Chae, {Jung Min} and Lee, {Sung Min} and Oh, {Yoon Suk} and Kim, {Hyung Tae} and Kim, {Kyung Ja} and Sahn Nahm and Seongwon Kim",

year = "2010",

doi = "10.4191/KCERS.2010.47.6.578",

language = "English",

volume = "47",

pages = "578--582",

journal = "Journal of the Korean Ceramic Society",

issn = "1229-7801",

publisher = "Korean Ceramic Society",

number = "6",

}

TY - JOUR

T1 - Effect of B4C addition on the microstructures and mechanical properties of ZrB2-SiC ceramics

AU - Chae, Jung Min

AU - Lee, Sung Min

AU - Oh, Yoon Suk

AU - Kim, Hyung Tae

AU - Kim, Kyung Ja

AU - Nahm, Sahn

AU - Kim, Seongwon

PY - 2010

Y1 - 2010

N2 - ZrB2 has a melting point of 3245°C and a relatively low density of 6.1 g/cm3, which makes this a candidate for application to ultrahigh temperature environments over 2000°C. Beside mese properties, ZrB2 is known to have excellent resistance to thermal shock and oxidation compared with other non-oxide engineering ceramics. In order to enhance such oxidation resistance, SiC was frequently added to ZrB 2-based systems. Due to nonsinterability of ZrB2-based ceramics, research on the sintering aids such as B4C or MoSi 2 becomes popular recently. In this study, densification and high-temperature properties of ZrB2-SiC ceramics especially with B4C are investigated. ZrB2-20 vol% SiC system was selected as a basic composition and B4C or C was added to this system in some extents. Mixed powders were sintered using hot pressing (HP). With sintered bodies, densification behavior and high-temperature (up to 1400°C) properties such as flexural strength, hardness, and so on were examined.

AB - ZrB2 has a melting point of 3245°C and a relatively low density of 6.1 g/cm3, which makes this a candidate for application to ultrahigh temperature environments over 2000°C. Beside mese properties, ZrB2 is known to have excellent resistance to thermal shock and oxidation compared with other non-oxide engineering ceramics. In order to enhance such oxidation resistance, SiC was frequently added to ZrB 2-based systems. Due to nonsinterability of ZrB2-based ceramics, research on the sintering aids such as B4C or MoSi 2 becomes popular recently. In this study, densification and high-temperature properties of ZrB2-SiC ceramics especially with B4C are investigated. ZrB2-20 vol% SiC system was selected as a basic composition and B4C or C was added to this system in some extents. Mixed powders were sintered using hot pressing (HP). With sintered bodies, densification behavior and high-temperature (up to 1400°C) properties such as flexural strength, hardness, and so on were examined.

KW - BC addition

KW - High-temperature mechanical properties

KW - Ultra-high temperature ceramics (UHTCs)

KW - ZrB-SiC

UR - http://www.scopus.com/inward/record.url?scp=78751562477&partnerID=8YFLogxK

U2 - 10.4191/KCERS.2010.47.6.578

DO - 10.4191/KCERS.2010.47.6.578

M3 - Article

AN - SCOPUS:78751562477

SN - 1229-7801

VL - 47

SP - 578

EP - 582

JO - Journal of the Korean Ceramic Society

JF - Journal of the Korean Ceramic Society

IS - 6

ER -