Abstract
This paper describes the influence of silicon carbide (SiC) coating on hydrogen sorption kinetics of zirconium alloy E110 (Zr-1Nb). Amorphous SiC coating of 1.5-μm thickness was deposited on Zr-1Nb alloy substrate by direct current magnetron sputtering of composite cathode. Hydrogen absorption by SiC-coated Zr-1Nb alloy significantly decreased due to low hydrogen permeability of the coating. Hydrogenation tests show that SiC coating provides protective properties against hydrogen permeation in the investigated temperature range of 350-450 °C. It was shown that hydrogenation of uncoated Zr-1Nb leads to formation of δ hydrides at 350 °C and ° and γ hydrides at higher temperatures whereas in the SiC-coated Zr-1Nb alloy only δ hydrides formed. Gradient hydrogen distribution through the SiC coating and H trapping in the carbon-rich interface was observed. The adhesion strength of the coating was ~5 N. Hydrogenation up to 450 °C for 5 h does not degrade the adhesion properties during scratch testing.
| Original language | English |
|---|---|
| Article number | 31 |
| Journal | Coatings |
| Volume | 9 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 8 Jan 2019 |
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Keywords
- Adhesion
- E110 (Zr-1Nb)
- Hydrogen sorption
- Hydrogenation
- Magnetron sputtering
- SiC coating
- Zirconium alloys
ASJC Scopus subject areas
- Surfaces, Coatings and Films
- Materials Chemistry
- Surfaces and Interfaces
Cite this
Hydrogen sorption kinetics of SiC-coated Zr-1Nb alloy. / Kashkarov, Egor B.; Syrtanov, Maxim S.; Murashkina, Tatyana L.; Kurochkin, Alexander V.; Shanenkova, Yulia; Obrosov, Aleksei.
In: Coatings, Vol. 9, No. 1, 31, 08.01.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Hydrogen sorption kinetics of SiC-coated Zr-1Nb alloy
AU - Kashkarov, Egor B.
AU - Syrtanov, Maxim S.
AU - Murashkina, Tatyana L.
AU - Kurochkin, Alexander V.
AU - Shanenkova, Yulia
AU - Obrosov, Aleksei
PY - 2019/1/8
Y1 - 2019/1/8
N2 - This paper describes the influence of silicon carbide (SiC) coating on hydrogen sorption kinetics of zirconium alloy E110 (Zr-1Nb). Amorphous SiC coating of 1.5-μm thickness was deposited on Zr-1Nb alloy substrate by direct current magnetron sputtering of composite cathode. Hydrogen absorption by SiC-coated Zr-1Nb alloy significantly decreased due to low hydrogen permeability of the coating. Hydrogenation tests show that SiC coating provides protective properties against hydrogen permeation in the investigated temperature range of 350-450 °C. It was shown that hydrogenation of uncoated Zr-1Nb leads to formation of δ hydrides at 350 °C and ° and γ hydrides at higher temperatures whereas in the SiC-coated Zr-1Nb alloy only δ hydrides formed. Gradient hydrogen distribution through the SiC coating and H trapping in the carbon-rich interface was observed. The adhesion strength of the coating was ~5 N. Hydrogenation up to 450 °C for 5 h does not degrade the adhesion properties during scratch testing.
AB - This paper describes the influence of silicon carbide (SiC) coating on hydrogen sorption kinetics of zirconium alloy E110 (Zr-1Nb). Amorphous SiC coating of 1.5-μm thickness was deposited on Zr-1Nb alloy substrate by direct current magnetron sputtering of composite cathode. Hydrogen absorption by SiC-coated Zr-1Nb alloy significantly decreased due to low hydrogen permeability of the coating. Hydrogenation tests show that SiC coating provides protective properties against hydrogen permeation in the investigated temperature range of 350-450 °C. It was shown that hydrogenation of uncoated Zr-1Nb leads to formation of δ hydrides at 350 °C and ° and γ hydrides at higher temperatures whereas in the SiC-coated Zr-1Nb alloy only δ hydrides formed. Gradient hydrogen distribution through the SiC coating and H trapping in the carbon-rich interface was observed. The adhesion strength of the coating was ~5 N. Hydrogenation up to 450 °C for 5 h does not degrade the adhesion properties during scratch testing.
KW - Adhesion
KW - E110 (Zr-1Nb)
KW - Hydrogen sorption
KW - Hydrogenation
KW - Magnetron sputtering
KW - SiC coating
KW - Zirconium alloys
UR - http://www.scopus.com/inward/record.url?scp=85060540456&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85060540456&partnerID=8YFLogxK
U2 - 10.3390/coatings9010031
DO - 10.3390/coatings9010031
M3 - Article
AN - SCOPUS:85060540456
VL - 9
JO - Progress in Organic Coatings
JF - Progress in Organic Coatings
SN - 0033-0655
IS - 1
M1 - 31
ER -