Comprehensive study on the sintering behavior of yttria nano-powder in contact with electrolytic iron using the rapid solidification processing technique

Katelijne Verhiest; Steven Mullens; Johan Paul; Iris De Graeve; Nico De Wispelaere; Serge Claessens; Anne De Bremaecker; Kim Verbeken

doi:10.1016/j.ceramint.2013.12.109

Comprehensive study on the sintering behavior of yttria nano-powder in contact with electrolytic iron using the rapid solidification processing technique

Katelijne Verhiest, Steven Mullens, Johan Paul, Iris De Graeve, Nico De Wispelaere, Serge Claessens, Anne De Bremaecker, Kim Verbeken

Research output › peer-review

7 Scopus citations

Abstract

Oxide dispersion strengthened (ODS) steels are considered as the future structural material of interest for nuclear power plants, due to their elevated creep resistance at higher operation temperatures. In this study, a 0.3 wt% nano-yttria (Y₂O₃) dispersed iron cast trial was elaborated using rapid solidification processing (RSP). The nano-sized Y ₂O₃ particles were introduced into the iron matrix using the formulation of a low-concentrated colloidal dispersion. The aim of this study is to understand the dispersibility behaviour of the ceramic Y ₂O₃ nano-powder when added to an iron melt as a colloidal dispersion, during high-temperature melting or RSP. It was found, after casting the iron/Y₂O₃ composites, that apart from an inhomogeneous dispersion, super-micron agglomerates alternate dispersed zones. Overall, this study tried to assay the casting practice of iron/Y₂O₃ composites using RSP. As an overall conclusion, it can be stated that wettability in synergy with porous materials characteristics, (especially powder purity) seems to have a significant impact on the dispersibility of Y ₂O₃ particles and its super-micron sphere formation behavior in an iron melt.

Original language	English
Pages (from-to)	7679-7692
Number of pages	14
Journal	Ceramics International
Volume	40
Issue number	6
DOIs	https://doi.org/10.1016/j.ceramint.2013.12.109
State	Published - Jul 2014

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.ceramint.2013.12.109

Cite this

Verhiest, K., Mullens, S., Paul, J., De Graeve, I., De Wispelaere, N., Claessens, S., De Bremaecker, A., & Verbeken, K. (2014). Comprehensive study on the sintering behavior of yttria nano-powder in contact with electrolytic iron using the rapid solidification processing technique. Ceramics International, 40(6), 7679-7692. https://doi.org/10.1016/j.ceramint.2013.12.109

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title = "Comprehensive study on the sintering behavior of yttria nano-powder in contact with electrolytic iron using the rapid solidification processing technique",

abstract = "Oxide dispersion strengthened (ODS) steels are considered as the future structural material of interest for nuclear power plants, due to their elevated creep resistance at higher operation temperatures. In this study, a 0.3 wt% nano-yttria (Y2O3) dispersed iron cast trial was elaborated using rapid solidification processing (RSP). The nano-sized Y 2O3 particles were introduced into the iron matrix using the formulation of a low-concentrated colloidal dispersion. The aim of this study is to understand the dispersibility behaviour of the ceramic Y 2O3 nano-powder when added to an iron melt as a colloidal dispersion, during high-temperature melting or RSP. It was found, after casting the iron/Y2O3 composites, that apart from an inhomogeneous dispersion, super-micron agglomerates alternate dispersed zones. Overall, this study tried to assay the casting practice of iron/Y2O3 composites using RSP. As an overall conclusion, it can be stated that wettability in synergy with porous materials characteristics, (especially powder purity) seems to have a significant impact on the dispersibility of Y 2O3 particles and its super-micron sphere formation behavior in an iron melt.",

keywords = "Dispersibility, Iron melt, Rapid solidification processing, Wettability, Yttrium oxides",

author = "Katelijne Verhiest and Steven Mullens and Johan Paul and {De Graeve}, Iris and {De Wispelaere}, Nico and Serge Claessens and {De Bremaecker}, Anne and Kim Verbeken",

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Verhiest, K, Mullens, S, Paul, J, De Graeve, I, De Wispelaere, N, Claessens, S, De Bremaecker, A & Verbeken, K 2014, 'Comprehensive study on the sintering behavior of yttria nano-powder in contact with electrolytic iron using the rapid solidification processing technique', Ceramics International, vol. 40, no. 6, pp. 7679-7692. https://doi.org/10.1016/j.ceramint.2013.12.109

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T1 - Comprehensive study on the sintering behavior of yttria nano-powder in contact with electrolytic iron using the rapid solidification processing technique

AU - Verhiest, Katelijne

AU - Mullens, Steven

AU - Paul, Johan

AU - De Graeve, Iris

AU - De Wispelaere, Nico

AU - Claessens, Serge

AU - De Bremaecker, Anne

AU - Verbeken, Kim

PY - 2014/7

Y1 - 2014/7

N2 - Oxide dispersion strengthened (ODS) steels are considered as the future structural material of interest for nuclear power plants, due to their elevated creep resistance at higher operation temperatures. In this study, a 0.3 wt% nano-yttria (Y2O3) dispersed iron cast trial was elaborated using rapid solidification processing (RSP). The nano-sized Y 2O3 particles were introduced into the iron matrix using the formulation of a low-concentrated colloidal dispersion. The aim of this study is to understand the dispersibility behaviour of the ceramic Y 2O3 nano-powder when added to an iron melt as a colloidal dispersion, during high-temperature melting or RSP. It was found, after casting the iron/Y2O3 composites, that apart from an inhomogeneous dispersion, super-micron agglomerates alternate dispersed zones. Overall, this study tried to assay the casting practice of iron/Y2O3 composites using RSP. As an overall conclusion, it can be stated that wettability in synergy with porous materials characteristics, (especially powder purity) seems to have a significant impact on the dispersibility of Y 2O3 particles and its super-micron sphere formation behavior in an iron melt.

AB - Oxide dispersion strengthened (ODS) steels are considered as the future structural material of interest for nuclear power plants, due to their elevated creep resistance at higher operation temperatures. In this study, a 0.3 wt% nano-yttria (Y2O3) dispersed iron cast trial was elaborated using rapid solidification processing (RSP). The nano-sized Y 2O3 particles were introduced into the iron matrix using the formulation of a low-concentrated colloidal dispersion. The aim of this study is to understand the dispersibility behaviour of the ceramic Y 2O3 nano-powder when added to an iron melt as a colloidal dispersion, during high-temperature melting or RSP. It was found, after casting the iron/Y2O3 composites, that apart from an inhomogeneous dispersion, super-micron agglomerates alternate dispersed zones. Overall, this study tried to assay the casting practice of iron/Y2O3 composites using RSP. As an overall conclusion, it can be stated that wettability in synergy with porous materials characteristics, (especially powder purity) seems to have a significant impact on the dispersibility of Y 2O3 particles and its super-micron sphere formation behavior in an iron melt.

KW - Dispersibility

KW - Iron melt

KW - Rapid solidification processing

KW - Wettability

KW - Yttrium oxides

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