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 | |
| Publication status | Published - 2010 Dec 1 |
Fingerprint
Keywords
- BC addition
- High-temperature mechanical properties
- Ultra-high temperature ceramics (UHTCs)
- ZrB-SiC
ASJC Scopus subject areas
- Ceramics and Composites
Cite this
Effect of B4C addition on the microstructures and mechanical properties of ZrB2-SiC ceramics. / Chae, Jung Min; Lee, Sung Min; Oh, Yoon Suk; Kim, Hyung Tae; Kim, Kyung Ja; Nahm, Sahn; Kim, Seongwon.
In: Journal of the Korean Ceramic Society, Vol. 47, No. 6, 01.12.2010, p. 578-582.Research output: Contribution to journal › Article
}
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 - 2010/12/1
Y1 - 2010/12/1
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
UR - http://www.scopus.com/inward/citedby.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
VL - 47
SP - 578
EP - 582
JO - Journal of the Korean Ceramic Society
JF - Journal of the Korean Ceramic Society
SN - 1229-7801
IS - 6
ER -