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Effect of La2O3 Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened Cw/SiC Composites
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| Zeitschriftentitel: | Materials Science Forum |
|---|---|
| Personen und Körperschaften: | , , |
| In: | Materials Science Forum, 650, 2010, S. 119-125 |
| Format: | E-Article |
| Sprache: | Unbestimmt |
| veröffentlicht: |
Trans Tech Publications, Ltd.
|
| Schlagwörter: |
| author_facet |
Zhang, Yun Long Zhang, Yu Min Han, Jie Cai Zhang, Yun Long Zhang, Yu Min Han, Jie Cai |
|---|---|
| author |
Zhang, Yun Long Zhang, Yu Min Han, Jie Cai |
| spellingShingle |
Zhang, Yun Long Zhang, Yu Min Han, Jie Cai Materials Science Forum Effect of La2O3 Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened Cw/SiC Composites Mechanical Engineering Mechanics of Materials Condensed Matter Physics General Materials Science |
| author_sort |
zhang, yun long |
| spelling |
Zhang, Yun Long Zhang, Yu Min Han, Jie Cai 1662-9752 Trans Tech Publications, Ltd. Mechanical Engineering Mechanics of Materials Condensed Matter Physics General Materials Science http://dx.doi.org/10.4028/www.scientific.net/msf.650.119 <jats:p>In this paper, micrometers long and 20–100nm diameter SiC nanowires had been synthesized in the Cw/SiC composites by annealing treatment. The present work demonstrated that it is possible to fabricate in-situ SiC nanowires toughening Cw/SiC composites. La2O3 had a significant effect on the morphology and distribution of the SiC nanowires in the Cw/SiC composites. The excess lanthanum resulted in the growth of SiC nanowires with an increasing growth rate in the longitudinal direction and a decreasing growth rate in radial direction. The addition of La2O3 would improve the mechanical properties in the room-temperature. The vapor–liquid-solid growth mechanism of the SiC nanowires along <111> direction was proposed. The combination of grain bridging, crack deflection, whisker debonding and SiC nanowires can improve fracture toughness.</jats:p> Effect of La<sub>2</sub>O<sub>3</sub> Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened C<sub>w</sub>/SiC Composites Materials Science Forum |
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Trans Tech Publications, Ltd., 2010 |
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Trans Tech Publications, Ltd., 2010 |
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| title |
Effect of La2O3 Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened Cw/SiC Composites |
| title_unstemmed |
Effect of La2O3 Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened Cw/SiC Composites |
| title_full |
Effect of La2O3 Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened Cw/SiC Composites |
| title_fullStr |
Effect of La2O3 Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened Cw/SiC Composites |
| title_full_unstemmed |
Effect of La2O3 Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened Cw/SiC Composites |
| title_short |
Effect of La2O3 Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened Cw/SiC Composites |
| title_sort |
effect of la<sub>2</sub>o<sub>3</sub> content on mechanical properties and toughened mechanics of sic nanowires toughened c<sub>w</sub>/sic composites |
| topic |
Mechanical Engineering Mechanics of Materials Condensed Matter Physics General Materials Science |
| url |
http://dx.doi.org/10.4028/www.scientific.net/msf.650.119 |
| publishDate |
2010 |
| physical |
119-125 |
| description |
<jats:p>In this paper, micrometers long and 20–100nm diameter SiC nanowires had been synthesized in the Cw/SiC composites by annealing treatment. The present work demonstrated that it is possible to fabricate in-situ SiC nanowires toughening Cw/SiC composites. La2O3 had a significant effect on the morphology and distribution of the SiC nanowires in the Cw/SiC composites. The excess lanthanum resulted in the growth of SiC nanowires with an increasing growth rate in the longitudinal direction and a decreasing growth rate in radial direction. The addition of La2O3 would improve the mechanical properties in the room-temperature. The vapor–liquid-solid growth mechanism of the SiC nanowires along <111> direction was proposed. The combination of grain bridging, crack deflection, whisker debonding and SiC nanowires can improve fracture toughness.</jats:p> |
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| author | Zhang, Yun Long, Zhang, Yu Min, Han, Jie Cai |
| author_facet | Zhang, Yun Long, Zhang, Yu Min, Han, Jie Cai, Zhang, Yun Long, Zhang, Yu Min, Han, Jie Cai |
| author_sort | zhang, yun long |
| container_start_page | 119 |
| container_title | Materials Science Forum |
| container_volume | 650 |
| description | <jats:p>In this paper, micrometers long and 20–100nm diameter SiC nanowires had been synthesized in the Cw/SiC composites by annealing treatment. The present work demonstrated that it is possible to fabricate in-situ SiC nanowires toughening Cw/SiC composites. La2O3 had a significant effect on the morphology and distribution of the SiC nanowires in the Cw/SiC composites. The excess lanthanum resulted in the growth of SiC nanowires with an increasing growth rate in the longitudinal direction and a decreasing growth rate in radial direction. The addition of La2O3 would improve the mechanical properties in the room-temperature. The vapor–liquid-solid growth mechanism of the SiC nanowires along <111> direction was proposed. The combination of grain bridging, crack deflection, whisker debonding and SiC nanowires can improve fracture toughness.</jats:p> |
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| imprint | Trans Tech Publications, Ltd., 2010 |
| imprint_str_mv | Trans Tech Publications, Ltd., 2010 |
| institution | DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1 |
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| physical | 119-125 |
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| source_id | 49 |
| spelling | Zhang, Yun Long Zhang, Yu Min Han, Jie Cai 1662-9752 Trans Tech Publications, Ltd. Mechanical Engineering Mechanics of Materials Condensed Matter Physics General Materials Science http://dx.doi.org/10.4028/www.scientific.net/msf.650.119 <jats:p>In this paper, micrometers long and 20–100nm diameter SiC nanowires had been synthesized in the Cw/SiC composites by annealing treatment. The present work demonstrated that it is possible to fabricate in-situ SiC nanowires toughening Cw/SiC composites. La2O3 had a significant effect on the morphology and distribution of the SiC nanowires in the Cw/SiC composites. The excess lanthanum resulted in the growth of SiC nanowires with an increasing growth rate in the longitudinal direction and a decreasing growth rate in radial direction. The addition of La2O3 would improve the mechanical properties in the room-temperature. The vapor–liquid-solid growth mechanism of the SiC nanowires along <111> direction was proposed. The combination of grain bridging, crack deflection, whisker debonding and SiC nanowires can improve fracture toughness.</jats:p> Effect of La<sub>2</sub>O<sub>3</sub> Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened C<sub>w</sub>/SiC Composites Materials Science Forum |
| spellingShingle | Zhang, Yun Long, Zhang, Yu Min, Han, Jie Cai, Materials Science Forum, Effect of La2O3 Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened Cw/SiC Composites, Mechanical Engineering, Mechanics of Materials, Condensed Matter Physics, General Materials Science |
| title | Effect of La2O3 Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened Cw/SiC Composites |
| title_full | Effect of La2O3 Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened Cw/SiC Composites |
| title_fullStr | Effect of La2O3 Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened Cw/SiC Composites |
| title_full_unstemmed | Effect of La2O3 Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened Cw/SiC Composites |
| title_short | Effect of La2O3 Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened Cw/SiC Composites |
| title_sort | effect of la<sub>2</sub>o<sub>3</sub> content on mechanical properties and toughened mechanics of sic nanowires toughened c<sub>w</sub>/sic composites |
| title_unstemmed | Effect of La2O3 Content on Mechanical Properties and Toughened Mechanics of SiC Nanowires Toughened Cw/SiC Composites |
| topic | Mechanical Engineering, Mechanics of Materials, Condensed Matter Physics, General Materials Science |
| url | http://dx.doi.org/10.4028/www.scientific.net/msf.650.119 |