Residual stress of ruthenium powder samples compacted by spark-plasma-sintering (SPS) determined by X-ray diffraction

P. Angerer; J. Wosik; E. Neubauer; L. G. Yu; G. E. Nauer; K. A. Khor

doi:10.1016/j.ijrmhm.2008.04.002

Residual stress of ruthenium powder samples compacted by spark-plasma-sintering (SPS) determined by X-ray diffraction

P. Angerer^*, J. Wosik, E. Neubauer, L. G. Yu, G. E. Nauer, K. A. Khor

^*Corresponding author for this work

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

20 Citations (Scopus)

Abstract

Spark-plasma-sintering (SPS) experiments of cylindrical ruthenium powder samples have been performed at different sintering temperatures between 1200 °C and 1600 °C applying a comparatively short sintering time of 1 min. The compacted samples have been characterized in respect of crystallite size, phase composition, and microstructure by X-ray diffraction and scanning electron microscopy techniques. Furthermore, the stress components σ₁₁ and σ₃₃ directed parallel and vertical to the compaction axis have been determined by means of the sin²ψ method. The SPS process resulted in a significant reduction of the residual stress in the material in comparison with samples compacted by conventional hot pressing methods (HP) which were compacted at 1200 °C and 1400 °C for 60 min. This effect is also associated with an enhanced crystallite growth.

Original language	English
Pages (from-to)	105-110
Number of pages	6
Journal	International Journal of Refractory Metals and Hard Materials
Volume	27
Issue number	1
DOIs	https://doi.org/10.1016/j.ijrmhm.2008.04.002
Publication status	Published - Jan 2009
Externally published	Yes

ASJC Scopus Subject Areas

Ceramics and Composites
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Keywords

Residual stress
Ruthenium
Spark-plasma-sintering

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10.1016/j.ijrmhm.2008.04.002

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title = "Residual stress of ruthenium powder samples compacted by spark-plasma-sintering (SPS) determined by X-ray diffraction",

abstract = "Spark-plasma-sintering (SPS) experiments of cylindrical ruthenium powder samples have been performed at different sintering temperatures between 1200 °C and 1600 °C applying a comparatively short sintering time of 1 min. The compacted samples have been characterized in respect of crystallite size, phase composition, and microstructure by X-ray diffraction and scanning electron microscopy techniques. Furthermore, the stress components σ11 and σ33 directed parallel and vertical to the compaction axis have been determined by means of the sin2ψ method. The SPS process resulted in a significant reduction of the residual stress in the material in comparison with samples compacted by conventional hot pressing methods (HP) which were compacted at 1200 °C and 1400 °C for 60 min. This effect is also associated with an enhanced crystallite growth.",

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doi = "10.1016/j.ijrmhm.2008.04.002",

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AU - Angerer, P.

AU - Wosik, J.

AU - Neubauer, E.

AU - Yu, L. G.

AU - Nauer, G. E.

AU - Khor, K. A.

PY - 2009/1

Y1 - 2009/1

N2 - Spark-plasma-sintering (SPS) experiments of cylindrical ruthenium powder samples have been performed at different sintering temperatures between 1200 °C and 1600 °C applying a comparatively short sintering time of 1 min. The compacted samples have been characterized in respect of crystallite size, phase composition, and microstructure by X-ray diffraction and scanning electron microscopy techniques. Furthermore, the stress components σ11 and σ33 directed parallel and vertical to the compaction axis have been determined by means of the sin2ψ method. The SPS process resulted in a significant reduction of the residual stress in the material in comparison with samples compacted by conventional hot pressing methods (HP) which were compacted at 1200 °C and 1400 °C for 60 min. This effect is also associated with an enhanced crystallite growth.

AB - Spark-plasma-sintering (SPS) experiments of cylindrical ruthenium powder samples have been performed at different sintering temperatures between 1200 °C and 1600 °C applying a comparatively short sintering time of 1 min. The compacted samples have been characterized in respect of crystallite size, phase composition, and microstructure by X-ray diffraction and scanning electron microscopy techniques. Furthermore, the stress components σ11 and σ33 directed parallel and vertical to the compaction axis have been determined by means of the sin2ψ method. The SPS process resulted in a significant reduction of the residual stress in the material in comparison with samples compacted by conventional hot pressing methods (HP) which were compacted at 1200 °C and 1400 °C for 60 min. This effect is also associated with an enhanced crystallite growth.

KW - Residual stress

KW - Ruthenium

KW - Spark-plasma-sintering

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Residual stress of ruthenium powder samples compacted by spark-plasma-sintering (SPS) determined by X-ray diffraction

Abstract

ASJC Scopus Subject Areas

Keywords

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