Electric field effects during spark plasma sintering of ceramic nanoparticles
Abstract The effects of the applied electric field during the spark plasma sintering of ceramic nanoparticles were examined at various stages of the process. It was assumed that local intensification of the electric field arises due to the nanoscale structural features. Enhanced surface conductivity...
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| Autor*in: |
Chaim, R. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2012 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer Science+Business Media, LLC 2012 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of materials science - Springer US, 1966, 48(2012), 1 vom: 03. Aug., Seite 502-510 |
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| Übergeordnetes Werk: |
volume:48 ; year:2012 ; number:1 ; day:03 ; month:08 ; pages:502-510 |
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| DOI / URN: |
10.1007/s10853-012-6764-9 |
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OLC2046381513 |
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| 520 | |a Abstract The effects of the applied electric field during the spark plasma sintering of ceramic nanoparticles were examined at various stages of the process. It was assumed that local intensification of the electric field arises due to the nanoscale structural features. Enhanced surface conductivity is expected in the nanoparticles during the heating, which otherwise are electrically non-conducting as a bulk. Percolation of the electric current at “optimal” electrical conductivity is obtained by fractal dimension. The defective nanoparticle surfaces experience charging–discharge cycles which lead to local breakdown and to plasma formation due to the ionized surface molecules. High local temperatures which evolved in a nonlinear fashion at the particle surfaces lead to enhanced sintering and densification kinetics, consistent with the flash sintering phenomenon. The contribution of the pondermotive force to the enhancement of the diffusion kinetics is discussed. Temperature windows for enhanced densification kinetics via plastic deformation or plasma-assisted processes are estimated for MgO, $ Al_{2} $$ O_{3} $, and YAG. | ||
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10.1007/s10853-012-6764-9 doi (DE-627)OLC2046381513 (DE-He213)s10853-012-6764-9-p DE-627 ger DE-627 rakwb eng 670 VZ Chaim, R. verfasserin aut Electric field effects during spark plasma sintering of ceramic nanoparticles 2012 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2012 Abstract The effects of the applied electric field during the spark plasma sintering of ceramic nanoparticles were examined at various stages of the process. It was assumed that local intensification of the electric field arises due to the nanoscale structural features. Enhanced surface conductivity is expected in the nanoparticles during the heating, which otherwise are electrically non-conducting as a bulk. Percolation of the electric current at “optimal” electrical conductivity is obtained by fractal dimension. The defective nanoparticle surfaces experience charging–discharge cycles which lead to local breakdown and to plasma formation due to the ionized surface molecules. High local temperatures which evolved in a nonlinear fashion at the particle surfaces lead to enhanced sintering and densification kinetics, consistent with the flash sintering phenomenon. The contribution of the pondermotive force to the enhancement of the diffusion kinetics is discussed. Temperature windows for enhanced densification kinetics via plastic deformation or plasma-assisted processes are estimated for MgO, $ Al_{2} $$ O_{3} $, and YAG. Spark Plasma Sinter Plasma Formation Microwave Sinter Electric Field Effect Spark Plasma Sinter Process Enthalten in Journal of materials science Springer US, 1966 48(2012), 1 vom: 03. Aug., Seite 502-510 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:48 year:2012 number:1 day:03 month:08 pages:502-510 https://doi.org/10.1007/s10853-012-6764-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_30 GBV_ILN_32 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 48 2012 1 03 08 502-510 |
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10.1007/s10853-012-6764-9 doi (DE-627)OLC2046381513 (DE-He213)s10853-012-6764-9-p DE-627 ger DE-627 rakwb eng 670 VZ Chaim, R. verfasserin aut Electric field effects during spark plasma sintering of ceramic nanoparticles 2012 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2012 Abstract The effects of the applied electric field during the spark plasma sintering of ceramic nanoparticles were examined at various stages of the process. It was assumed that local intensification of the electric field arises due to the nanoscale structural features. Enhanced surface conductivity is expected in the nanoparticles during the heating, which otherwise are electrically non-conducting as a bulk. Percolation of the electric current at “optimal” electrical conductivity is obtained by fractal dimension. The defective nanoparticle surfaces experience charging–discharge cycles which lead to local breakdown and to plasma formation due to the ionized surface molecules. High local temperatures which evolved in a nonlinear fashion at the particle surfaces lead to enhanced sintering and densification kinetics, consistent with the flash sintering phenomenon. The contribution of the pondermotive force to the enhancement of the diffusion kinetics is discussed. Temperature windows for enhanced densification kinetics via plastic deformation or plasma-assisted processes are estimated for MgO, $ Al_{2} $$ O_{3} $, and YAG. Spark Plasma Sinter Plasma Formation Microwave Sinter Electric Field Effect Spark Plasma Sinter Process Enthalten in Journal of materials science Springer US, 1966 48(2012), 1 vom: 03. Aug., Seite 502-510 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:48 year:2012 number:1 day:03 month:08 pages:502-510 https://doi.org/10.1007/s10853-012-6764-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_30 GBV_ILN_32 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 48 2012 1 03 08 502-510 |
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10.1007/s10853-012-6764-9 doi (DE-627)OLC2046381513 (DE-He213)s10853-012-6764-9-p DE-627 ger DE-627 rakwb eng 670 VZ Chaim, R. verfasserin aut Electric field effects during spark plasma sintering of ceramic nanoparticles 2012 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2012 Abstract The effects of the applied electric field during the spark plasma sintering of ceramic nanoparticles were examined at various stages of the process. It was assumed that local intensification of the electric field arises due to the nanoscale structural features. Enhanced surface conductivity is expected in the nanoparticles during the heating, which otherwise are electrically non-conducting as a bulk. Percolation of the electric current at “optimal” electrical conductivity is obtained by fractal dimension. The defective nanoparticle surfaces experience charging–discharge cycles which lead to local breakdown and to plasma formation due to the ionized surface molecules. High local temperatures which evolved in a nonlinear fashion at the particle surfaces lead to enhanced sintering and densification kinetics, consistent with the flash sintering phenomenon. The contribution of the pondermotive force to the enhancement of the diffusion kinetics is discussed. Temperature windows for enhanced densification kinetics via plastic deformation or plasma-assisted processes are estimated for MgO, $ Al_{2} $$ O_{3} $, and YAG. Spark Plasma Sinter Plasma Formation Microwave Sinter Electric Field Effect Spark Plasma Sinter Process Enthalten in Journal of materials science Springer US, 1966 48(2012), 1 vom: 03. Aug., Seite 502-510 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:48 year:2012 number:1 day:03 month:08 pages:502-510 https://doi.org/10.1007/s10853-012-6764-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_30 GBV_ILN_32 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 48 2012 1 03 08 502-510 |
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10.1007/s10853-012-6764-9 doi (DE-627)OLC2046381513 (DE-He213)s10853-012-6764-9-p DE-627 ger DE-627 rakwb eng 670 VZ Chaim, R. verfasserin aut Electric field effects during spark plasma sintering of ceramic nanoparticles 2012 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2012 Abstract The effects of the applied electric field during the spark plasma sintering of ceramic nanoparticles were examined at various stages of the process. It was assumed that local intensification of the electric field arises due to the nanoscale structural features. Enhanced surface conductivity is expected in the nanoparticles during the heating, which otherwise are electrically non-conducting as a bulk. Percolation of the electric current at “optimal” electrical conductivity is obtained by fractal dimension. The defective nanoparticle surfaces experience charging–discharge cycles which lead to local breakdown and to plasma formation due to the ionized surface molecules. High local temperatures which evolved in a nonlinear fashion at the particle surfaces lead to enhanced sintering and densification kinetics, consistent with the flash sintering phenomenon. The contribution of the pondermotive force to the enhancement of the diffusion kinetics is discussed. Temperature windows for enhanced densification kinetics via plastic deformation or plasma-assisted processes are estimated for MgO, $ Al_{2} $$ O_{3} $, and YAG. Spark Plasma Sinter Plasma Formation Microwave Sinter Electric Field Effect Spark Plasma Sinter Process Enthalten in Journal of materials science Springer US, 1966 48(2012), 1 vom: 03. Aug., Seite 502-510 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:48 year:2012 number:1 day:03 month:08 pages:502-510 https://doi.org/10.1007/s10853-012-6764-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_30 GBV_ILN_32 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 48 2012 1 03 08 502-510 |
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10.1007/s10853-012-6764-9 doi (DE-627)OLC2046381513 (DE-He213)s10853-012-6764-9-p DE-627 ger DE-627 rakwb eng 670 VZ Chaim, R. verfasserin aut Electric field effects during spark plasma sintering of ceramic nanoparticles 2012 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2012 Abstract The effects of the applied electric field during the spark plasma sintering of ceramic nanoparticles were examined at various stages of the process. It was assumed that local intensification of the electric field arises due to the nanoscale structural features. Enhanced surface conductivity is expected in the nanoparticles during the heating, which otherwise are electrically non-conducting as a bulk. Percolation of the electric current at “optimal” electrical conductivity is obtained by fractal dimension. The defective nanoparticle surfaces experience charging–discharge cycles which lead to local breakdown and to plasma formation due to the ionized surface molecules. High local temperatures which evolved in a nonlinear fashion at the particle surfaces lead to enhanced sintering and densification kinetics, consistent with the flash sintering phenomenon. The contribution of the pondermotive force to the enhancement of the diffusion kinetics is discussed. Temperature windows for enhanced densification kinetics via plastic deformation or plasma-assisted processes are estimated for MgO, $ Al_{2} $$ O_{3} $, and YAG. Spark Plasma Sinter Plasma Formation Microwave Sinter Electric Field Effect Spark Plasma Sinter Process Enthalten in Journal of materials science Springer US, 1966 48(2012), 1 vom: 03. Aug., Seite 502-510 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:48 year:2012 number:1 day:03 month:08 pages:502-510 https://doi.org/10.1007/s10853-012-6764-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_30 GBV_ILN_32 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 48 2012 1 03 08 502-510 |
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Abstract The effects of the applied electric field during the spark plasma sintering of ceramic nanoparticles were examined at various stages of the process. It was assumed that local intensification of the electric field arises due to the nanoscale structural features. Enhanced surface conductivity is expected in the nanoparticles during the heating, which otherwise are electrically non-conducting as a bulk. Percolation of the electric current at “optimal” electrical conductivity is obtained by fractal dimension. The defective nanoparticle surfaces experience charging–discharge cycles which lead to local breakdown and to plasma formation due to the ionized surface molecules. High local temperatures which evolved in a nonlinear fashion at the particle surfaces lead to enhanced sintering and densification kinetics, consistent with the flash sintering phenomenon. The contribution of the pondermotive force to the enhancement of the diffusion kinetics is discussed. Temperature windows for enhanced densification kinetics via plastic deformation or plasma-assisted processes are estimated for MgO, $ Al_{2} $$ O_{3} $, and YAG. © Springer Science+Business Media, LLC 2012 |
| abstractGer |
Abstract The effects of the applied electric field during the spark plasma sintering of ceramic nanoparticles were examined at various stages of the process. It was assumed that local intensification of the electric field arises due to the nanoscale structural features. Enhanced surface conductivity is expected in the nanoparticles during the heating, which otherwise are electrically non-conducting as a bulk. Percolation of the electric current at “optimal” electrical conductivity is obtained by fractal dimension. The defective nanoparticle surfaces experience charging–discharge cycles which lead to local breakdown and to plasma formation due to the ionized surface molecules. High local temperatures which evolved in a nonlinear fashion at the particle surfaces lead to enhanced sintering and densification kinetics, consistent with the flash sintering phenomenon. The contribution of the pondermotive force to the enhancement of the diffusion kinetics is discussed. Temperature windows for enhanced densification kinetics via plastic deformation or plasma-assisted processes are estimated for MgO, $ Al_{2} $$ O_{3} $, and YAG. © Springer Science+Business Media, LLC 2012 |
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Abstract The effects of the applied electric field during the spark plasma sintering of ceramic nanoparticles were examined at various stages of the process. It was assumed that local intensification of the electric field arises due to the nanoscale structural features. Enhanced surface conductivity is expected in the nanoparticles during the heating, which otherwise are electrically non-conducting as a bulk. Percolation of the electric current at “optimal” electrical conductivity is obtained by fractal dimension. The defective nanoparticle surfaces experience charging–discharge cycles which lead to local breakdown and to plasma formation due to the ionized surface molecules. High local temperatures which evolved in a nonlinear fashion at the particle surfaces lead to enhanced sintering and densification kinetics, consistent with the flash sintering phenomenon. The contribution of the pondermotive force to the enhancement of the diffusion kinetics is discussed. Temperature windows for enhanced densification kinetics via plastic deformation or plasma-assisted processes are estimated for MgO, $ Al_{2} $$ O_{3} $, and YAG. © Springer Science+Business Media, LLC 2012 |
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Electric field effects during spark plasma sintering of ceramic nanoparticles |
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