Spark-plasma-sintering (SPS) of nanostructured and submicron titanium oxide powders

P. Angerer; L. G. Yu; K. A. Khor; G. Krumpel

doi:10.1016/j.msea.2004.02.009

Spark-plasma-sintering (SPS) of nanostructured and submicron titanium oxide powders

P. Angerer, L. G. Yu, K. A. Khor^*, G. Krumpel

^*Corresponding author for this work

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

70 Citations (Scopus)

Abstract

Spark-plasma-sintering (SPS) consolidation of submicron and nanostructured titanium oxide (TiO₂) powders was performed between 800 and 1000 °C for 1 min. The results were compared with conventional sintering using electrical resistant furnace that was performed between 600 and 1000 °C for 120 min. The compacted samples were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). This investigation clearly shows that the SPS method is capable of obtaining samples with high densities and corresponding fine grain-size from nanostructured raw TiO₂ powder. Remarkable difference in the sintering techniques was observed in samples with >95% theoretical density where the relative grain growth quotient d/d_o for the 40 nm powder was ∼3 when SPS was employed while the value obtained for conventional sintering was ∼26.

Original language	English
Pages (from-to)	16-19
Number of pages	4
Journal	Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Volume	381
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2004.02.009
Publication status	Published - Sept 15 2004
Externally published	Yes

ASJC Scopus Subject Areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Keywords

Grain growth
Nanocrystalline
Spark-plasma-sintering
Titanium oxide powders
X-ray diffraction

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10.1016/j.msea.2004.02.009

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title = "Spark-plasma-sintering (SPS) of nanostructured and submicron titanium oxide powders",

abstract = "Spark-plasma-sintering (SPS) consolidation of submicron and nanostructured titanium oxide (TiO2) powders was performed between 800 and 1000 °C for 1 min. The results were compared with conventional sintering using electrical resistant furnace that was performed between 600 and 1000 °C for 120 min. The compacted samples were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). This investigation clearly shows that the SPS method is capable of obtaining samples with high densities and corresponding fine grain-size from nanostructured raw TiO2 powder. Remarkable difference in the sintering techniques was observed in samples with >95% theoretical density where the relative grain growth quotient d/do for the 40 nm powder was ∼3 when SPS was employed while the value obtained for conventional sintering was ∼26.",

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T1 - Spark-plasma-sintering (SPS) of nanostructured and submicron titanium oxide powders

AU - Angerer, P.

AU - Yu, L. G.

AU - Khor, K. A.

AU - Krumpel, G.

PY - 2004/9/15

Y1 - 2004/9/15

N2 - Spark-plasma-sintering (SPS) consolidation of submicron and nanostructured titanium oxide (TiO2) powders was performed between 800 and 1000 °C for 1 min. The results were compared with conventional sintering using electrical resistant furnace that was performed between 600 and 1000 °C for 120 min. The compacted samples were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). This investigation clearly shows that the SPS method is capable of obtaining samples with high densities and corresponding fine grain-size from nanostructured raw TiO2 powder. Remarkable difference in the sintering techniques was observed in samples with >95% theoretical density where the relative grain growth quotient d/do for the 40 nm powder was ∼3 when SPS was employed while the value obtained for conventional sintering was ∼26.

AB - Spark-plasma-sintering (SPS) consolidation of submicron and nanostructured titanium oxide (TiO2) powders was performed between 800 and 1000 °C for 1 min. The results were compared with conventional sintering using electrical resistant furnace that was performed between 600 and 1000 °C for 120 min. The compacted samples were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). This investigation clearly shows that the SPS method is capable of obtaining samples with high densities and corresponding fine grain-size from nanostructured raw TiO2 powder. Remarkable difference in the sintering techniques was observed in samples with >95% theoretical density where the relative grain growth quotient d/do for the 40 nm powder was ∼3 when SPS was employed while the value obtained for conventional sintering was ∼26.

KW - Grain growth

KW - Nanocrystalline

KW - Spark-plasma-sintering

KW - Titanium oxide powders

KW - X-ray diffraction

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ER -

Spark-plasma-sintering (SPS) of nanostructured and submicron titanium oxide powders

Abstract

ASJC Scopus Subject Areas

Keywords

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