Properties of chemical vapor deposited ZrC coating layer using by Zirconium sponge materials

Jun Gyu Kim, Yoo Youl Choi, Young Woo Lee, Ji Yeon Park, Doo Jin Choi

Research output: Contribution to journalArticle

Abstract

The SiC and ZrC are critical and essential materials in TRISO coated fuel particles since they act as protective layers against diffusion of metallic and gaseous fission products and provides mechanical strength for the fuel particle. However, SiC and ZrC have critical disadvantage that SiC loses chemical integrity by thermal dissociation at high temperature and mechanical properties of ZrC are weaker than SiC. In order to complement these problems, we made new combinations of the coating layers that the ZrC layers composed of SiC. In this study, after Silicon carbide (SiC) were chemically vapor deposited on graphite substrate, Zirconium carbide (ZrC) were deposited on SiC/graphite substrate by using Zr reaction technology with Zr sponge materials. The different morphologies of sub-deposited SiC layers were correlated with microstructure, chemical composition and mechanical properties of deposited ZrC films. Relationships between deposition pressure and microstructure of deposited ZrC films were discussed. The deposited ZrC films on SiC of faceted structure with smaller grain size has better mechanical properties than deposited ZrC on another structure due to surface growth trend and microstructure of sub-deposited layer.

Original languageEnglish
Pages (from-to)245-249
Number of pages5
JournalJournal of the Korean Ceramic Society
Volume45
Issue number4
DOIs
Publication statusPublished - 2008 Jan 1

Fingerprint

Zirconium sponge
Zirconium
Silicon carbide
Carbides
Vapors
Coatings
Graphite
Mechanical properties
Microstructure
Coated fuel particles
High temperature properties
silicon carbide
Fission products
Substrates
Strength of materials

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

Cite this

Kim, Jun Gyu ; Choi, Yoo Youl ; Lee, Young Woo ; Park, Ji Yeon ; Choi, Doo Jin. / Properties of chemical vapor deposited ZrC coating layer using by Zirconium sponge materials. In: Journal of the Korean Ceramic Society. 2008 ; Vol. 45, No. 4. pp. 245-249.
@article{e04a93678d8a481c807190f2450f720c,
title = "Properties of chemical vapor deposited ZrC coating layer using by Zirconium sponge materials",
abstract = "The SiC and ZrC are critical and essential materials in TRISO coated fuel particles since they act as protective layers against diffusion of metallic and gaseous fission products and provides mechanical strength for the fuel particle. However, SiC and ZrC have critical disadvantage that SiC loses chemical integrity by thermal dissociation at high temperature and mechanical properties of ZrC are weaker than SiC. In order to complement these problems, we made new combinations of the coating layers that the ZrC layers composed of SiC. In this study, after Silicon carbide (SiC) were chemically vapor deposited on graphite substrate, Zirconium carbide (ZrC) were deposited on SiC/graphite substrate by using Zr reaction technology with Zr sponge materials. The different morphologies of sub-deposited SiC layers were correlated with microstructure, chemical composition and mechanical properties of deposited ZrC films. Relationships between deposition pressure and microstructure of deposited ZrC films were discussed. The deposited ZrC films on SiC of faceted structure with smaller grain size has better mechanical properties than deposited ZrC on another structure due to surface growth trend and microstructure of sub-deposited layer.",
author = "Kim, {Jun Gyu} and Choi, {Yoo Youl} and Lee, {Young Woo} and Park, {Ji Yeon} and Choi, {Doo Jin}",
year = "2008",
month = "1",
day = "1",
doi = "10.4191/KCERS.2008.45.4.245",
language = "English",
volume = "45",
pages = "245--249",
journal = "Journal of the Korean Ceramic Society",
issn = "1229-7801",
publisher = "Korean Ceramic Society",
number = "4",

}

Properties of chemical vapor deposited ZrC coating layer using by Zirconium sponge materials. / Kim, Jun Gyu; Choi, Yoo Youl; Lee, Young Woo; Park, Ji Yeon; Choi, Doo Jin.

In: Journal of the Korean Ceramic Society, Vol. 45, No. 4, 01.01.2008, p. 245-249.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Properties of chemical vapor deposited ZrC coating layer using by Zirconium sponge materials

AU - Kim, Jun Gyu

AU - Choi, Yoo Youl

AU - Lee, Young Woo

AU - Park, Ji Yeon

AU - Choi, Doo Jin

PY - 2008/1/1

Y1 - 2008/1/1

N2 - The SiC and ZrC are critical and essential materials in TRISO coated fuel particles since they act as protective layers against diffusion of metallic and gaseous fission products and provides mechanical strength for the fuel particle. However, SiC and ZrC have critical disadvantage that SiC loses chemical integrity by thermal dissociation at high temperature and mechanical properties of ZrC are weaker than SiC. In order to complement these problems, we made new combinations of the coating layers that the ZrC layers composed of SiC. In this study, after Silicon carbide (SiC) were chemically vapor deposited on graphite substrate, Zirconium carbide (ZrC) were deposited on SiC/graphite substrate by using Zr reaction technology with Zr sponge materials. The different morphologies of sub-deposited SiC layers were correlated with microstructure, chemical composition and mechanical properties of deposited ZrC films. Relationships between deposition pressure and microstructure of deposited ZrC films were discussed. The deposited ZrC films on SiC of faceted structure with smaller grain size has better mechanical properties than deposited ZrC on another structure due to surface growth trend and microstructure of sub-deposited layer.

AB - The SiC and ZrC are critical and essential materials in TRISO coated fuel particles since they act as protective layers against diffusion of metallic and gaseous fission products and provides mechanical strength for the fuel particle. However, SiC and ZrC have critical disadvantage that SiC loses chemical integrity by thermal dissociation at high temperature and mechanical properties of ZrC are weaker than SiC. In order to complement these problems, we made new combinations of the coating layers that the ZrC layers composed of SiC. In this study, after Silicon carbide (SiC) were chemically vapor deposited on graphite substrate, Zirconium carbide (ZrC) were deposited on SiC/graphite substrate by using Zr reaction technology with Zr sponge materials. The different morphologies of sub-deposited SiC layers were correlated with microstructure, chemical composition and mechanical properties of deposited ZrC films. Relationships between deposition pressure and microstructure of deposited ZrC films were discussed. The deposited ZrC films on SiC of faceted structure with smaller grain size has better mechanical properties than deposited ZrC on another structure due to surface growth trend and microstructure of sub-deposited layer.

UR - http://www.scopus.com/inward/record.url?scp=44949185437&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=44949185437&partnerID=8YFLogxK

U2 - 10.4191/KCERS.2008.45.4.245

DO - 10.4191/KCERS.2008.45.4.245

M3 - Article

AN - SCOPUS:44949185437

VL - 45

SP - 245

EP - 249

JO - Journal of the Korean Ceramic Society

JF - Journal of the Korean Ceramic Society

SN - 1229-7801

IS - 4

ER -