Hot-corrosion behavior of silicon nitride-bonded silicon carbide

Sang Kook Woo; In Sub Han; Gyeong Geun Ri; Sung Chul Park; Kurn Cho; Byung Koog Jang

doi:10.2109/jcersj.109.23

Hot-corrosion behavior of silicon nitride-bonded silicon carbide

Sang Kook Woo, In Sub Han, Gyeong Geun Ri, Sung Chul Park, Kurn Cho, Byung Koog Jang

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

2 Citations (Scopus)

Abstract

In this work, the hot-corrosion behavior of silicon nitride-bonded silicon carbide composite (SCN) in aluminum melt are studied especially on the similar environment to the actual working condition. The thermal shock resistance and cyclic thermal shock behavior of this composite are also studied. Pre-oxidized specimens corroded more extensively than as-cut specimens in Al melt at the same temperature. The specimens, which were pre-oxidized and immersed in Al melt, showed a severe reduction in their mean compressive strength. The mass changes of SCN oxidized at 850 °C-1200 °C followed parabolic kinetics but pore neck blocking happened at 1200 °C. The activation energy was found to be 223 kJ/mol. In water quenching test of SCN composite, the critical thermal shock temperature difference was about 425 °C. The repeated thermal stress by the cyclic heating and cooling caused the decrease in strength.

Original language	English
Pages (from-to)	23-28
Number of pages	6
Journal	Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Volume	109
Issue number	1265
DOIs	https://doi.org/10.2109/jcersj.109.23
Publication status	Published - 2001
Externally published	Yes

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Chemistry(all)
Condensed Matter Physics
Materials Chemistry

Access to Document

10.2109/jcersj.109.23

Fingerprint Dive into the research topics of 'Hot-corrosion behavior of silicon nitride-bonded silicon carbide'. Together they form a unique fingerprint.

Cite this

@article{9c614ca23b7d4133a970302a171ba930,

title = "Hot-corrosion behavior of silicon nitride-bonded silicon carbide",

abstract = "In this work, the hot-corrosion behavior of silicon nitride-bonded silicon carbide composite (SCN) in aluminum melt are studied especially on the similar environment to the actual working condition. The thermal shock resistance and cyclic thermal shock behavior of this composite are also studied. Pre-oxidized specimens corroded more extensively than as-cut specimens in Al melt at the same temperature. The specimens, which were pre-oxidized and immersed in Al melt, showed a severe reduction in their mean compressive strength. The mass changes of SCN oxidized at 850 °C-1200 °C followed parabolic kinetics but pore neck blocking happened at 1200 °C. The activation energy was found to be 223 kJ/mol. In water quenching test of SCN composite, the critical thermal shock temperature difference was about 425 °C. The repeated thermal stress by the cyclic heating and cooling caused the decrease in strength.",

author = "Woo, {Sang Kook} and Han, {In Sub} and Ri, {Gyeong Geun} and Park, {Sung Chul} and Kurn Cho and Jang, {Byung Koog}",

year = "2001",

doi = "10.2109/jcersj.109.23",

language = "English",

volume = "109",

pages = "23--28",

journal = "Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan",

issn = "1882-0743",

publisher = "Ceramic Society of Japan/Nippon Seramikkusu Kyokai",

number = "1265",

}

TY - JOUR

T1 - Hot-corrosion behavior of silicon nitride-bonded silicon carbide

AU - Woo, Sang Kook

AU - Han, In Sub

AU - Ri, Gyeong Geun

AU - Park, Sung Chul

AU - Cho, Kurn

AU - Jang, Byung Koog

PY - 2001

Y1 - 2001

N2 - In this work, the hot-corrosion behavior of silicon nitride-bonded silicon carbide composite (SCN) in aluminum melt are studied especially on the similar environment to the actual working condition. The thermal shock resistance and cyclic thermal shock behavior of this composite are also studied. Pre-oxidized specimens corroded more extensively than as-cut specimens in Al melt at the same temperature. The specimens, which were pre-oxidized and immersed in Al melt, showed a severe reduction in their mean compressive strength. The mass changes of SCN oxidized at 850 °C-1200 °C followed parabolic kinetics but pore neck blocking happened at 1200 °C. The activation energy was found to be 223 kJ/mol. In water quenching test of SCN composite, the critical thermal shock temperature difference was about 425 °C. The repeated thermal stress by the cyclic heating and cooling caused the decrease in strength.

AB - In this work, the hot-corrosion behavior of silicon nitride-bonded silicon carbide composite (SCN) in aluminum melt are studied especially on the similar environment to the actual working condition. The thermal shock resistance and cyclic thermal shock behavior of this composite are also studied. Pre-oxidized specimens corroded more extensively than as-cut specimens in Al melt at the same temperature. The specimens, which were pre-oxidized and immersed in Al melt, showed a severe reduction in their mean compressive strength. The mass changes of SCN oxidized at 850 °C-1200 °C followed parabolic kinetics but pore neck blocking happened at 1200 °C. The activation energy was found to be 223 kJ/mol. In water quenching test of SCN composite, the critical thermal shock temperature difference was about 425 °C. The repeated thermal stress by the cyclic heating and cooling caused the decrease in strength.

UR - http://www.scopus.com/inward/record.url?scp=0035111820&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035111820&partnerID=8YFLogxK

U2 - 10.2109/jcersj.109.23

DO - 10.2109/jcersj.109.23

M3 - Article

AN - SCOPUS:0035111820

VL - 109

SP - 23

EP - 28

JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan

JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan

SN - 1882-0743

IS - 1265

ER -

Hot-corrosion behavior of silicon nitride-bonded silicon carbide

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Cite this