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不同镀膜钕铁硼磁体抗腐蚀性的体外实验研究 被引量:4

In vitro study of the corrosiveness resistance property of NdFeB magnet with different coatings
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摘要 目的:比较不同镀膜钕铁硼磁体在模拟口腔环境下的抗腐蚀性能。方法:将未镀膜、氮化钛镀膜、类金刚石镀膜钕铁硼磁体(每组45个)在37℃人工唾液环境下浸泡60 d,每瓶100 ml含磁体5个,并于浸泡之日起每10天从每瓶吸取1 ml浸泡液,以电感耦合等离子体发射光谱法(ICP-AES)测定其内铁离子浓度。浸泡结束后比较各组磁体浸泡前后质量变化占原质量的百分比。结果:氮化钛镀膜组和类金刚石镀膜组浸泡液中的铁离子浓度在10、20、30、40、50、60 d各时间点上均低于未镀膜组(P<0.01),氮化钛镀膜组和类金刚石镀膜组浸泡前后质量差与初始质量的百分比低于未镀膜组(P<0.01);镀膜组之间2项指标差异无统计学意义(P>0.05)。结论:氮化钛镀膜和类金刚石镀膜均能增加钕铁硼磁体的抗腐蚀性能。 Objective: To compare the corrosiveness resistance property of NdFeB magnet with different coatings in simulated oral en- vironment. Methods: 3 groups of magnets(45 in each group) bare magnets, magnets with titanium-TiNride (TIN) coating and magnets with diamond like carbon (DLC) coating were respectively immersed in the artificial saliva at 37℃ for 2 months. Each bottle contained 5 magnets in 100 ml of the artificial saliva. 1 ml of soak solution was taken from each bottle every 10 days after immersion. Inductively coupled plasma atomic emission spectrometry (ICP-AES) method was conducted to analyze the concentration of ferrous ion in the extractions. After immersion, the ratio of weight change to its original weight in each group was calculated and compared. Re- suits: The concentrations of ferrous ion in both TiN and DLC coating g^oups were lower than that in bare magnet group at each time- points ( 10, 20, 30, 40, 50 and 60 days) (P 〈 0.01 ). The concentrations of ferrous ion between TiN and DLC coating groups were not statistically different( P 〉 0:05 ). The ratios of weight change in TiN and DLC coating groups were not statistically different (P 〉 0.05 ) but lower than that in bare magnets group(P 〈 0.01 ). Conclusion: Both TiN coating and DLC coating can enhance its corrosiveness resistance property.
出处 《实用口腔医学杂志》 CAS CSCD 北大核心 2013年第2期195-197,共3页 Journal of Practical Stomatology
基金 国家自然科学基金资助项目(编号:81160138)
关键词 钕铁硼磁体 氮化钛镀膜 类金刚石镀膜 抗腐蚀性能 NdFeB magnets TiN coating DLC coating Corrosiveness resistance property
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  • 1梁文勇.磁力正牙研究的新进展[J].国外医学(口腔医学分册),1994,21(5):285-287. 被引量:7
  • 2Vardimon AD, Mueller I-H. In vivo and in vitro corrosion of permanent magnets in orthodontic therapy [ J ]. J Dent Res, 1985,64 (2) :89.
  • 3Evans RD, McDonald F. Effect of coorosion products ( neo- dymium iron boron)on oral fibroblast proliferation [ J ]. J Ap- pl Biomater, 1995,6 (3) : 199 - 202.
  • 4陈素华,李铮.人工唾液的研制与临床试用[J].华西药学杂志,1995,10(4):251-252. 被引量:4
  • 5国家技术监督局.GB/T16545-1996.金属和合金的腐蚀.腐蚀试样上腐蚀产物的清除[s].北京:中国标准出版社,1997.
  • 6解保生,李爱霞,朱惠兰,徐芸.口腔正畸用磁块镀氮化钛膜后抗腐蚀性能的定量研究[J].实用口腔医学杂志,2005,21(1):50-53. 被引量:9
  • 7Muguruma T, Iijima M, Brantley WA,et al. Effects of a di- amond- like carbon coating on the frictional properties of or- thodontic wires [ J ]. Angle Orthod, 2011, 81 ( 1 ) : 141 - 148.

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