Preparation and characterization of TiO2/acrylic resin composite coatings on sintered NdFeB permanent magnets by electrochemical deposition
The sintered Nd Fe B permanent magnets are widely used in various industries because of their excellent magnetic and comprehensive properties. However, they are seriously hindered to further developments and applications owing to its poor corrosion resistance. In this paper,TiO2/acrylic resin compos...
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| Veröffentlicht in: | Rare metals 2014-12, Vol.33 (6), p.703-708 |
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| creator | Zhong, Zhen-Chen Xu, Ji-Lin Huang, Zheng-Xian Luo, Jun-Ming |
| description | The sintered Nd Fe B permanent magnets are widely used in various industries because of their excellent magnetic and comprehensive properties. However, they are seriously hindered to further developments and applications owing to its poor corrosion resistance. In this paper,TiO2/acrylic resin composite coatings were successfully prepared on the sintered Nd Fe B permanent magnets by electrochemical deposition for the first time, and the corrosion behaviors were investigated by using immersion testing and potentiodynamic polarization tests. It is found that the coating is a composite, being composed of polymerized acrylic resin as the matrix and nano-rutile TiO2particles（-200 nm） as the reinforcements. It is about25 lm in thickness and its surface and cross-section exhibit uniform and smooth with no pores, cracks, and other defects. Compared with those of the uncoated Nd Fe B magnets, the weight loss of the coated samples immersed in H2SO4 solution reduces by two orders of magnitude,corrosion current density decreases by four orders of magnitude, and the corrosion potential of the coated sample is shifted in the noble direction by 400 m V. The mechanisms of corrosive resistance enhancement were discussed. |
| doi_str_mv | 10.1007/s12598-013-0142-x |
| format | Article |
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However, they are seriously hindered to further developments and applications owing to its poor corrosion resistance. In this paper,TiO2/acrylic resin composite coatings were successfully prepared on the sintered Nd Fe B permanent magnets by electrochemical deposition for the first time, and the corrosion behaviors were investigated by using immersion testing and potentiodynamic polarization tests. It is found that the coating is a composite, being composed of polymerized acrylic resin as the matrix and nano-rutile TiO2particles（-200 nm） as the reinforcements. It is about25 lm in thickness and its surface and cross-section exhibit uniform and smooth with no pores, cracks, and other defects. Compared with those of the uncoated Nd Fe B magnets, the weight loss of the coated samples immersed in H2SO4 solution reduces by two orders of magnitude,corrosion current density decreases by four orders of magnitude, and the corrosion potential of the coated sample is shifted in the noble direction by 400 m V. The mechanisms of corrosive resistance enhancement were discussed.</description><identifier>ISSN: 1001-0521</identifier><identifier>EISSN: 1867-7185</identifier><identifier>DOI: 10.1007/s12598-013-0142-x</identifier><language>eng</language><publisher>Springer Berlin Heidelberg: Nonferrous Metals Society of China</publisher><subject>Biomaterials ; Chemistry and Materials Science ; Energy ; Materials Engineering ; Materials Science ; Metallic Materials ; Nanoscale Science and Technology ; Physical Chemistry ; 丙烯酸树脂 ; 制备 ; 复合涂层 ; 烧结钕铁硼永磁体 ; 电化学沉积 ; 腐蚀电流密度 ; 表征 ; 金红石型TiO2</subject><ispartof>Rare metals, 2014-12, Vol.33 (6), p.703-708</ispartof><rights>The Nonferrous Metals Society of China and Springer-Verlag Berlin Heidelberg 2013</rights><rights>The Nonferrous Metals Society of China and Springer-Verlag Berlin Heidelberg 2014</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c413t-bc1b5105675542f65a8c19c16e948357d5b33b983cf3a91d6643bdac621730ee3</citedby><cites>FETCH-LOGICAL-c413t-bc1b5105675542f65a8c19c16e948357d5b33b983cf3a91d6643bdac621730ee3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/85314X/85314X.jpg</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s12598-013-0142-x$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s12598-013-0142-x$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Zhong, Zhen-Chen</creatorcontrib><creatorcontrib>Xu, Ji-Lin</creatorcontrib><creatorcontrib>Huang, Zheng-Xian</creatorcontrib><creatorcontrib>Luo, Jun-Ming</creatorcontrib><title>Preparation and characterization of TiO2/acrylic resin composite coatings on sintered NdFeB permanent magnets by electrochemical deposition</title><title>Rare metals</title><addtitle>Rare Met</addtitle><addtitle>Rare Metals</addtitle><description>The sintered Nd Fe B permanent magnets are widely used in various industries because of their excellent magnetic and comprehensive properties. 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Compared with those of the uncoated Nd Fe B magnets, the weight loss of the coated samples immersed in H2SO4 solution reduces by two orders of magnitude,corrosion current density decreases by four orders of magnitude, and the corrosion potential of the coated sample is shifted in the noble direction by 400 m V. The mechanisms of corrosive resistance enhancement were discussed.</description><subject>Biomaterials</subject><subject>Chemistry and Materials Science</subject><subject>Energy</subject><subject>Materials Engineering</subject><subject>Materials Science</subject><subject>Metallic Materials</subject><subject>Nanoscale Science and Technology</subject><subject>Physical Chemistry</subject><subject>丙烯酸树脂</subject><subject>制备</subject><subject>复合涂层</subject><subject>烧结钕铁硼永磁体</subject><subject>电化学沉积</subject><subject>腐蚀电流密度</subject><subject>表征</subject><subject>金红石型TiO2</subject><issn>1001-0521</issn><issn>1867-7185</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp9kM1OxCAUhYnRRB19AHdE11Vu-Wm7VONfYtTFuCaU3s50MoUKNXF8BV9atMa4ckG4wPnOIYeQI2CnwFhxFiGXVZkx4GmJPHvbIntQqiIroJTbaWYMMiZz2CX7Ma4YE0Iptkc-ngIOJpix844a11C7TCc7Yujep0vf0nn3mJ8ZGzbrztKAsXPU-n7wsRsxTUnnFpEmbXpJJDb0obnGCzpg6I1DN9LeLByOkdYbimu0Y_B2iX1nzZo2-G2Uog7ITmvWEQ9_9hl5vr6aX95m9483d5fn95kVwMestlBLYFIVUoq8VdKUFioLCitRclk0sua8rkpuW24qaJQSvG6MVTkUnCHyGTmZfIfgX14xjnrlX4NLkRpUXgpViRQ0IzCpbPAxBmz1ELrehI0Gpr8611PnOnWuvzrXb4nJJyYmrVtg-OP8D3T8E7T0bvGSuN8kpWT6iQDJPwGx4ZKM</recordid><startdate>20141201</startdate><enddate>20141201</enddate><creator>Zhong, Zhen-Chen</creator><creator>Xu, Ji-Lin</creator><creator>Huang, Zheng-Xian</creator><creator>Luo, Jun-Ming</creator><general>Nonferrous Metals Society of China</general><general>Springer Nature B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PHGZM</scope><scope>PHGZT</scope><scope>PKEHL</scope><scope>PQEST</scope><scope>PQGLB</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20141201</creationdate><title>Preparation and characterization of TiO2/acrylic resin composite coatings on sintered NdFeB permanent magnets by electrochemical deposition</title><author>Zhong, Zhen-Chen ; 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However, they are seriously hindered to further developments and applications owing to its poor corrosion resistance. In this paper,TiO2/acrylic resin composite coatings were successfully prepared on the sintered Nd Fe B permanent magnets by electrochemical deposition for the first time, and the corrosion behaviors were investigated by using immersion testing and potentiodynamic polarization tests. It is found that the coating is a composite, being composed of polymerized acrylic resin as the matrix and nano-rutile TiO2particles（-200 nm） as the reinforcements. It is about25 lm in thickness and its surface and cross-section exhibit uniform and smooth with no pores, cracks, and other defects. Compared with those of the uncoated Nd Fe B magnets, the weight loss of the coated samples immersed in H2SO4 solution reduces by two orders of magnitude,corrosion current density decreases by four orders of magnitude, and the corrosion potential of the coated sample is shifted in the noble direction by 400 m V. The mechanisms of corrosive resistance enhancement were discussed.</abstract><cop>Springer Berlin Heidelberg</cop><pub>Nonferrous Metals Society of China</pub><doi>10.1007/s12598-013-0142-x</doi><tpages>6</tpages></addata></record> |
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| subjects | Biomaterials Chemistry and Materials Science Energy Materials Engineering Materials Science Metallic Materials Nanoscale Science and Technology Physical Chemistry 丙烯酸树脂 制备 复合涂层 烧结钕铁硼永磁体 电化学沉积 腐蚀电流密度 表征 金红石型TiO2 |
| title | Preparation and characterization of TiO2/acrylic resin composite coatings on sintered NdFeB permanent magnets by electrochemical deposition |
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