Mechanism of ultrasonic field on the particle micro-agglomeration and interfacial bonding of SiCp/7085 composites
SiCp/7085 composites with 10% particle volume fraction was prepared by a semi-solid mixture-mechanical stirring-ultrasound vibrations method. The particle distribution and interface bonding were studied through optical microscopy (OM), scanning electron microscopy (SEM) and X-ray diffraction (XRD),...
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| Format: | Article |
| Language: | zho |
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Science Press
2017-02-01
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| Series: | 工程科学学报 |
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| Online Access: | http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2017.02.011 |
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| author | WANG Kun ZHANG Li-hua LI Zheng-hua JIANG Wen LI Chang-zi |
| author_facet | WANG Kun ZHANG Li-hua LI Zheng-hua JIANG Wen LI Chang-zi |
| author_sort | WANG Kun |
| collection | DOAJ |
| description | SiCp/7085 composites with 10% particle volume fraction was prepared by a semi-solid mixture-mechanical stirring-ultrasound vibrations method. The particle distribution and interface bonding were studied through optical microscopy (OM), scanning electron microscopy (SEM) and X-ray diffraction (XRD), and the effect of ultrasonic field on the particle agglomeration and interfacial bonding of the composites was studied emphatically. The experimental results indicate that the effect of mechanical stirring on the agglomeration and interfacial bonding of 400 mesh particles is not significant. Under ultrasonic field, the coating of particles agglomeration can be effectively get rid of by instantaneous high pressure and temperature and micro jet induced by cavitation. That ultrasonic gets rid of the oxide film on the particle surface, removes the gas layer and makes magnesium in melt contact with particles directly is a very important factor in improving wettability between melt and particles. Finally, the MgAl2O4 strengthening phase is formed at the interface and a better interface bonding is got. |
| format | Article |
| id | doaj-art-b26c2d18cc6f4d36847a3ba1105ea193 |
| institution | OA Journals |
| issn | 2095-9389 |
| language | zho |
| publishDate | 2017-02-01 |
| publisher | Science Press |
| record_format | Article |
| series | 工程科学学报 |
| spelling | doaj-art-b26c2d18cc6f4d36847a3ba1105ea1932025-08-20T01:47:51ZzhoScience Press工程科学学报2095-93892017-02-0139223824310.13374/j.issn2095-9389.2017.02.011Mechanism of ultrasonic field on the particle micro-agglomeration and interfacial bonding of SiCp/7085 compositesWANG KunZHANG Li-huaLI Zheng-huaJIANG WenLI Chang-ziSiCp/7085 composites with 10% particle volume fraction was prepared by a semi-solid mixture-mechanical stirring-ultrasound vibrations method. The particle distribution and interface bonding were studied through optical microscopy (OM), scanning electron microscopy (SEM) and X-ray diffraction (XRD), and the effect of ultrasonic field on the particle agglomeration and interfacial bonding of the composites was studied emphatically. The experimental results indicate that the effect of mechanical stirring on the agglomeration and interfacial bonding of 400 mesh particles is not significant. Under ultrasonic field, the coating of particles agglomeration can be effectively get rid of by instantaneous high pressure and temperature and micro jet induced by cavitation. That ultrasonic gets rid of the oxide film on the particle surface, removes the gas layer and makes magnesium in melt contact with particles directly is a very important factor in improving wettability between melt and particles. Finally, the MgAl2O4 strengthening phase is formed at the interface and a better interface bonding is got.http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2017.02.011particle reinforced compositesultrasonic fieldaluminum alloyssilicon carbideparticle agglomerationinterface |
| spellingShingle | WANG Kun ZHANG Li-hua LI Zheng-hua JIANG Wen LI Chang-zi Mechanism of ultrasonic field on the particle micro-agglomeration and interfacial bonding of SiCp/7085 composites 工程科学学报 particle reinforced composites ultrasonic field aluminum alloys silicon carbide particle agglomeration interface |
| title | Mechanism of ultrasonic field on the particle micro-agglomeration and interfacial bonding of SiCp/7085 composites |
| title_full | Mechanism of ultrasonic field on the particle micro-agglomeration and interfacial bonding of SiCp/7085 composites |
| title_fullStr | Mechanism of ultrasonic field on the particle micro-agglomeration and interfacial bonding of SiCp/7085 composites |
| title_full_unstemmed | Mechanism of ultrasonic field on the particle micro-agglomeration and interfacial bonding of SiCp/7085 composites |
| title_short | Mechanism of ultrasonic field on the particle micro-agglomeration and interfacial bonding of SiCp/7085 composites |
| title_sort | mechanism of ultrasonic field on the particle micro agglomeration and interfacial bonding of sicp 7085 composites |
| topic | particle reinforced composites ultrasonic field aluminum alloys silicon carbide particle agglomeration interface |
| url | http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2017.02.011 |
| work_keys_str_mv | AT wangkun mechanismofultrasonicfieldontheparticlemicroagglomerationandinterfacialbondingofsicp7085composites AT zhanglihua mechanismofultrasonicfieldontheparticlemicroagglomerationandinterfacialbondingofsicp7085composites AT lizhenghua mechanismofultrasonicfieldontheparticlemicroagglomerationandinterfacialbondingofsicp7085composites AT jiangwen mechanismofultrasonicfieldontheparticlemicroagglomerationandinterfacialbondingofsicp7085composites AT lichangzi mechanismofultrasonicfieldontheparticlemicroagglomerationandinterfacialbondingofsicp7085composites |