Abnormal grain growth enhanced densification of liquid phase-sintered WC–Co in support of the pore filling theory
Abstract This study examines the effect of grain growth on densification during liquid phase sintering of compacts with faceted grains. Two kinds of WC powders with different sizes were used to produce WC–Co alloys. Large pores of ~5 μm size were generated in 95WC–5Co (wt%) using spherical Co partic...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Yang, Dong-Yeol [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, 47(2012), 20 vom: 24. Apr., Seite 7056-7063 |
|---|---|
| Übergeordnetes Werk: |
volume:47 ; year:2012 ; number:20 ; day:24 ; month:04 ; pages:7056-7063 |
| Links: |
|---|
| DOI / URN: |
10.1007/s10853-012-6474-3 |
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| Katalog-ID: |
OLC2046380177 |
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| 520 | |a Abstract This study examines the effect of grain growth on densification during liquid phase sintering of compacts with faceted grains. Two kinds of WC powders with different sizes were used to produce WC–Co alloys. Large pores of ~5 μm size were generated in 95WC–5Co (wt%) using spherical Co particles of the same size. The overall sintering behavior was observed by measuring grain growth and densification as a function of sintering time at a sintering temperature of 1350 °C. When the WC powder was fine (0.4 μm), large pores disappeared upon filling of pores by liquid with the formation of abnormal grains. On the contrary, when the WC powder was large (4.2 μm), grain growth is not observed, and large pores remained intact even after a long period of sintering (24 h). These observations confirm that densification during final stage liquid phase sintering occurs via filling of pores by liquid as a result of grain growth. This finding is consistent with the model of densification predicted by the pore filling theory. | ||
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10.1007/s10853-012-6474-3 doi (DE-627)OLC2046380177 (DE-He213)s10853-012-6474-3-p DE-627 ger DE-627 rakwb eng 670 VZ Yang, Dong-Yeol verfasserin aut Abnormal grain growth enhanced densification of liquid phase-sintered WC–Co in support of the pore filling theory 2012 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2012 Abstract This study examines the effect of grain growth on densification during liquid phase sintering of compacts with faceted grains. Two kinds of WC powders with different sizes were used to produce WC–Co alloys. Large pores of ~5 μm size were generated in 95WC–5Co (wt%) using spherical Co particles of the same size. The overall sintering behavior was observed by measuring grain growth and densification as a function of sintering time at a sintering temperature of 1350 °C. When the WC powder was fine (0.4 μm), large pores disappeared upon filling of pores by liquid with the formation of abnormal grains. On the contrary, when the WC powder was large (4.2 μm), grain growth is not observed, and large pores remained intact even after a long period of sintering (24 h). These observations confirm that densification during final stage liquid phase sintering occurs via filling of pores by liquid as a result of grain growth. This finding is consistent with the model of densification predicted by the pore filling theory. Powder Compact Liquid Phase Sinter Sintered Density Pore Filling Coarse Powder Yoon, Duk Yong aut Kang, Suk-Joong L. aut Enthalten in Journal of materials science Springer US, 1966 47(2012), 20 vom: 24. Apr., Seite 7056-7063 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:47 year:2012 number:20 day:24 month:04 pages:7056-7063 https://doi.org/10.1007/s10853-012-6474-3 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 47 2012 20 24 04 7056-7063 |
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10.1007/s10853-012-6474-3 doi (DE-627)OLC2046380177 (DE-He213)s10853-012-6474-3-p DE-627 ger DE-627 rakwb eng 670 VZ Yang, Dong-Yeol verfasserin aut Abnormal grain growth enhanced densification of liquid phase-sintered WC–Co in support of the pore filling theory 2012 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2012 Abstract This study examines the effect of grain growth on densification during liquid phase sintering of compacts with faceted grains. Two kinds of WC powders with different sizes were used to produce WC–Co alloys. Large pores of ~5 μm size were generated in 95WC–5Co (wt%) using spherical Co particles of the same size. The overall sintering behavior was observed by measuring grain growth and densification as a function of sintering time at a sintering temperature of 1350 °C. When the WC powder was fine (0.4 μm), large pores disappeared upon filling of pores by liquid with the formation of abnormal grains. On the contrary, when the WC powder was large (4.2 μm), grain growth is not observed, and large pores remained intact even after a long period of sintering (24 h). These observations confirm that densification during final stage liquid phase sintering occurs via filling of pores by liquid as a result of grain growth. This finding is consistent with the model of densification predicted by the pore filling theory. Powder Compact Liquid Phase Sinter Sintered Density Pore Filling Coarse Powder Yoon, Duk Yong aut Kang, Suk-Joong L. aut Enthalten in Journal of materials science Springer US, 1966 47(2012), 20 vom: 24. Apr., Seite 7056-7063 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:47 year:2012 number:20 day:24 month:04 pages:7056-7063 https://doi.org/10.1007/s10853-012-6474-3 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 47 2012 20 24 04 7056-7063 |
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10.1007/s10853-012-6474-3 doi (DE-627)OLC2046380177 (DE-He213)s10853-012-6474-3-p DE-627 ger DE-627 rakwb eng 670 VZ Yang, Dong-Yeol verfasserin aut Abnormal grain growth enhanced densification of liquid phase-sintered WC–Co in support of the pore filling theory 2012 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2012 Abstract This study examines the effect of grain growth on densification during liquid phase sintering of compacts with faceted grains. Two kinds of WC powders with different sizes were used to produce WC–Co alloys. Large pores of ~5 μm size were generated in 95WC–5Co (wt%) using spherical Co particles of the same size. The overall sintering behavior was observed by measuring grain growth and densification as a function of sintering time at a sintering temperature of 1350 °C. When the WC powder was fine (0.4 μm), large pores disappeared upon filling of pores by liquid with the formation of abnormal grains. On the contrary, when the WC powder was large (4.2 μm), grain growth is not observed, and large pores remained intact even after a long period of sintering (24 h). These observations confirm that densification during final stage liquid phase sintering occurs via filling of pores by liquid as a result of grain growth. This finding is consistent with the model of densification predicted by the pore filling theory. Powder Compact Liquid Phase Sinter Sintered Density Pore Filling Coarse Powder Yoon, Duk Yong aut Kang, Suk-Joong L. aut Enthalten in Journal of materials science Springer US, 1966 47(2012), 20 vom: 24. Apr., Seite 7056-7063 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:47 year:2012 number:20 day:24 month:04 pages:7056-7063 https://doi.org/10.1007/s10853-012-6474-3 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 47 2012 20 24 04 7056-7063 |
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10.1007/s10853-012-6474-3 doi (DE-627)OLC2046380177 (DE-He213)s10853-012-6474-3-p DE-627 ger DE-627 rakwb eng 670 VZ Yang, Dong-Yeol verfasserin aut Abnormal grain growth enhanced densification of liquid phase-sintered WC–Co in support of the pore filling theory 2012 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2012 Abstract This study examines the effect of grain growth on densification during liquid phase sintering of compacts with faceted grains. Two kinds of WC powders with different sizes were used to produce WC–Co alloys. Large pores of ~5 μm size were generated in 95WC–5Co (wt%) using spherical Co particles of the same size. The overall sintering behavior was observed by measuring grain growth and densification as a function of sintering time at a sintering temperature of 1350 °C. When the WC powder was fine (0.4 μm), large pores disappeared upon filling of pores by liquid with the formation of abnormal grains. On the contrary, when the WC powder was large (4.2 μm), grain growth is not observed, and large pores remained intact even after a long period of sintering (24 h). These observations confirm that densification during final stage liquid phase sintering occurs via filling of pores by liquid as a result of grain growth. This finding is consistent with the model of densification predicted by the pore filling theory. Powder Compact Liquid Phase Sinter Sintered Density Pore Filling Coarse Powder Yoon, Duk Yong aut Kang, Suk-Joong L. aut Enthalten in Journal of materials science Springer US, 1966 47(2012), 20 vom: 24. Apr., Seite 7056-7063 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:47 year:2012 number:20 day:24 month:04 pages:7056-7063 https://doi.org/10.1007/s10853-012-6474-3 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 47 2012 20 24 04 7056-7063 |
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10.1007/s10853-012-6474-3 doi (DE-627)OLC2046380177 (DE-He213)s10853-012-6474-3-p DE-627 ger DE-627 rakwb eng 670 VZ Yang, Dong-Yeol verfasserin aut Abnormal grain growth enhanced densification of liquid phase-sintered WC–Co in support of the pore filling theory 2012 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2012 Abstract This study examines the effect of grain growth on densification during liquid phase sintering of compacts with faceted grains. Two kinds of WC powders with different sizes were used to produce WC–Co alloys. Large pores of ~5 μm size were generated in 95WC–5Co (wt%) using spherical Co particles of the same size. The overall sintering behavior was observed by measuring grain growth and densification as a function of sintering time at a sintering temperature of 1350 °C. When the WC powder was fine (0.4 μm), large pores disappeared upon filling of pores by liquid with the formation of abnormal grains. On the contrary, when the WC powder was large (4.2 μm), grain growth is not observed, and large pores remained intact even after a long period of sintering (24 h). These observations confirm that densification during final stage liquid phase sintering occurs via filling of pores by liquid as a result of grain growth. This finding is consistent with the model of densification predicted by the pore filling theory. Powder Compact Liquid Phase Sinter Sintered Density Pore Filling Coarse Powder Yoon, Duk Yong aut Kang, Suk-Joong L. aut Enthalten in Journal of materials science Springer US, 1966 47(2012), 20 vom: 24. Apr., Seite 7056-7063 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:47 year:2012 number:20 day:24 month:04 pages:7056-7063 https://doi.org/10.1007/s10853-012-6474-3 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 47 2012 20 24 04 7056-7063 |
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Yang, Dong-Yeol |
| doi_str_mv |
10.1007/s10853-012-6474-3 |
| dewey-full |
670 |
| title_sort |
abnormal grain growth enhanced densification of liquid phase-sintered wc–co in support of the pore filling theory |
| title_auth |
Abnormal grain growth enhanced densification of liquid phase-sintered WC–Co in support of the pore filling theory |
| abstract |
Abstract This study examines the effect of grain growth on densification during liquid phase sintering of compacts with faceted grains. Two kinds of WC powders with different sizes were used to produce WC–Co alloys. Large pores of ~5 μm size were generated in 95WC–5Co (wt%) using spherical Co particles of the same size. The overall sintering behavior was observed by measuring grain growth and densification as a function of sintering time at a sintering temperature of 1350 °C. When the WC powder was fine (0.4 μm), large pores disappeared upon filling of pores by liquid with the formation of abnormal grains. On the contrary, when the WC powder was large (4.2 μm), grain growth is not observed, and large pores remained intact even after a long period of sintering (24 h). These observations confirm that densification during final stage liquid phase sintering occurs via filling of pores by liquid as a result of grain growth. This finding is consistent with the model of densification predicted by the pore filling theory. © Springer Science+Business Media, LLC 2012 |
| abstractGer |
Abstract This study examines the effect of grain growth on densification during liquid phase sintering of compacts with faceted grains. Two kinds of WC powders with different sizes were used to produce WC–Co alloys. Large pores of ~5 μm size were generated in 95WC–5Co (wt%) using spherical Co particles of the same size. The overall sintering behavior was observed by measuring grain growth and densification as a function of sintering time at a sintering temperature of 1350 °C. When the WC powder was fine (0.4 μm), large pores disappeared upon filling of pores by liquid with the formation of abnormal grains. On the contrary, when the WC powder was large (4.2 μm), grain growth is not observed, and large pores remained intact even after a long period of sintering (24 h). These observations confirm that densification during final stage liquid phase sintering occurs via filling of pores by liquid as a result of grain growth. This finding is consistent with the model of densification predicted by the pore filling theory. © Springer Science+Business Media, LLC 2012 |
| abstract_unstemmed |
Abstract This study examines the effect of grain growth on densification during liquid phase sintering of compacts with faceted grains. Two kinds of WC powders with different sizes were used to produce WC–Co alloys. Large pores of ~5 μm size were generated in 95WC–5Co (wt%) using spherical Co particles of the same size. The overall sintering behavior was observed by measuring grain growth and densification as a function of sintering time at a sintering temperature of 1350 °C. When the WC powder was fine (0.4 μm), large pores disappeared upon filling of pores by liquid with the formation of abnormal grains. On the contrary, when the WC powder was large (4.2 μm), grain growth is not observed, and large pores remained intact even after a long period of sintering (24 h). These observations confirm that densification during final stage liquid phase sintering occurs via filling of pores by liquid as a result of grain growth. This finding is consistent with the model of densification predicted by the pore filling theory. © Springer Science+Business Media, LLC 2012 |
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| container_issue |
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| title_short |
Abnormal grain growth enhanced densification of liquid phase-sintered WC–Co in support of the pore filling theory |
| url |
https://doi.org/10.1007/s10853-012-6474-3 |
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| author2 |
Yoon, Duk Yong Kang, Suk-Joong L. |
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| up_date |
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