抄録
Y2SiO5 coatings are deposited by a flame-spray technique as protection layer on SiC substrates to prevent oxidation and steam corrosion. In this research, Y2SiO5 coatings were isothermally heat treated at different temperatures and different exposure times in a laboratory environment. The thermal behaviors such as phase transformation, microstructural change and thermally grown oxide (TGO) formation have been examined by XRD, SEM, and EDS analysis. Different modes of TGO growth behavior were found at different temperatures. In addition, the mechanical properties were evaluated by a Martens hardness tester. The results show that the change of microstructure and composition is not too critical, but higher temperatures and longer heating times do lead to the formation of Y2SiO5 crystalline phases and a β-Y2O3 phase. Thus, the isothermal heat treatment improves the hardness and elastic modulus of Y2SiO5 coatings.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 24-30 |
| ページ数 | 7 |
| ジャーナル | Surface and Coatings Technology |
| 巻 | 308 |
| DOI | |
| 出版物ステータス | 出版済み - 12 25 2016 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry
これを引用
Thermal behavior and mechanical properties of Y2SiO5 environmental barrier coatings after isothermal heat treatment. / Jang, Byung Koog; Feng, Fan Jie; Lee, Kee Sung; García, Eugenio; Nistal, Andrés; Nagashima, Nobuo; Kim, Seongwon; Oh, Yoon Suk; Kim, Hyung Tae.
：: Surface and Coatings Technology, 巻 308, 25.12.2016, p. 24-30.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Thermal behavior and mechanical properties of Y2SiO5 environmental barrier coatings after isothermal heat treatment
AU - Jang, Byung Koog
AU - Feng, Fan Jie
AU - Lee, Kee Sung
AU - García, Eugenio
AU - Nistal, Andrés
AU - Nagashima, Nobuo
AU - Kim, Seongwon
AU - Oh, Yoon Suk
AU - Kim, Hyung Tae
PY - 2016/12/25
Y1 - 2016/12/25
N2 - Y2SiO5 coatings are deposited by a flame-spray technique as protection layer on SiC substrates to prevent oxidation and steam corrosion. In this research, Y2SiO5 coatings were isothermally heat treated at different temperatures and different exposure times in a laboratory environment. The thermal behaviors such as phase transformation, microstructural change and thermally grown oxide (TGO) formation have been examined by XRD, SEM, and EDS analysis. Different modes of TGO growth behavior were found at different temperatures. In addition, the mechanical properties were evaluated by a Martens hardness tester. The results show that the change of microstructure and composition is not too critical, but higher temperatures and longer heating times do lead to the formation of Y2SiO5 crystalline phases and a β-Y2O3 phase. Thus, the isothermal heat treatment improves the hardness and elastic modulus of Y2SiO5 coatings.
AB - Y2SiO5 coatings are deposited by a flame-spray technique as protection layer on SiC substrates to prevent oxidation and steam corrosion. In this research, Y2SiO5 coatings were isothermally heat treated at different temperatures and different exposure times in a laboratory environment. The thermal behaviors such as phase transformation, microstructural change and thermally grown oxide (TGO) formation have been examined by XRD, SEM, and EDS analysis. Different modes of TGO growth behavior were found at different temperatures. In addition, the mechanical properties were evaluated by a Martens hardness tester. The results show that the change of microstructure and composition is not too critical, but higher temperatures and longer heating times do lead to the formation of Y2SiO5 crystalline phases and a β-Y2O3 phase. Thus, the isothermal heat treatment improves the hardness and elastic modulus of Y2SiO5 coatings.
UR - http://www.scopus.com/inward/record.url?scp=85001945930&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85001945930&partnerID=8YFLogxK
U2 - 10.1016/j.surfcoat.2016.09.088
DO - 10.1016/j.surfcoat.2016.09.088
M3 - Article
AN - SCOPUS:85001945930
VL - 308
SP - 24
EP - 30
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
SN - 0257-8972
ER -