马治,陈焕铭,潘凤春,席丽莹,林雪玲,王琴,吕琼.氧化物颗粒增强 Ni-W-P / Nb2 O5 复合镀层制备及其耐腐蚀性能[J].表面技术,2015,44(10):16-21,39.
MA Zhi,CHEN Huan-ming,PAN Feng-chun,XI Li-ying,LIN Xue-ling,WANG Qin,LYU Qiong.Preparation of Oxide Particles Enhanced Ni-W-P / Nb2O5 Composite Coatings by Electroless Plating and Its Corrosion Resistance[J].Surface Technology,2015,44(10):16-21,39
氧化物颗粒增强 Ni-W-P / Nb2 O5 复合镀层制备及其耐腐蚀性能
Preparation of Oxide Particles Enhanced Ni-W-P / Nb2O5 Composite Coatings by Electroless Plating and Its Corrosion Resistance
投稿时间:2015-07-03  修订日期:2015-10-20
DOI:10.16490/j.cnki.issn.1001-3660.2015.10.003
中文关键词:  化学镀  Ni-W-P/ Nb2O5 复合镀层  耐腐蚀性能  钕铁硼  颗粒增强  共沉积
英文关键词:electroless plating  Ni-W-P / Nb2 O5 composite coating  corrosion resistance  NdFeB  particle enhancement  codeposition
基金项目:宁夏大学自然科学基金(ZR1408)
作者单位
马治 宁夏大学 物理电气信息学院, 银川 750021 
陈焕铭 宁夏大学 物理电气信息学院, 银川 750021 
潘凤春 宁夏大学 物理电气信息学院, 银川 750021 
席丽莹 宁夏大学 物理电气信息学院, 银川 750021 
林雪玲 宁夏大学 物理电气信息学院, 银川 750021 
王琴 宁夏大学 物理电气信息学院, 银川 750021 
吕琼 宁夏大学 物理电气信息学院, 银川 750021 
AuthorInstitution
MA Zhi School of Physics & Electrical Information Engineering, Ningxia University, Yinchuan 750021, China 
CHEN Huan-ming School of Physics & Electrical Information Engineering, Ningxia University, Yinchuan 750021, China 
PAN Feng-chun School of Physics & Electrical Information Engineering, Ningxia University, Yinchuan 750021, China 
XI Li-ying School of Physics & Electrical Information Engineering, Ningxia University, Yinchuan 750021, China 
LIN Xue-ling School of Physics & Electrical Information Engineering, Ningxia University, Yinchuan 750021, China 
WANG Qin School of Physics & Electrical Information Engineering, Ningxia University, Yinchuan 750021, China 
LYU Qiong School of Physics & Electrical Information Engineering, Ningxia University, Yinchuan 750021, China 
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中文摘要:
      目的 对 NdFeB 磁性材料进行表面防护处理,改善其耐腐蚀性能。 方法 利用化学镀方法,在NdFeB 基体材料表面制备氧化物颗粒增强的晶态和非晶态 Ni-W-P/ Nb2O5 复合镀层,对镀层的组织形貌、元素组成分布及物相进行分析,并通过化学腐蚀失重法对耐腐蚀性能进行测试。 结果 当镀液中的次亚磷酸钠含量为 20 g/ L 时,形成了晶态镀层;为 35 g/ L 时,形成了非晶态镀层。 晶态和非晶态 Ni-W-P/Nb2O5 镀层均由胞状突起组成,其中弥散分布着共沉积的 Nb2O5 颗粒。 镀层样品的 XRD 图谱中没有出现与钕铁硼相关的衍射峰。 对于制备的晶态和非晶态复合镀层,镀液中 Nb2O5 质量浓度由 5 g/ L 增加到15 g/ L 时,化学腐蚀速率明显下降;Nb2O5 质量浓度由 15 g/ L 增加到 20 g/ L 时,化学腐蚀速率的下降变得缓慢。 结论 利用化学镀可以在 NdFeB 磁性材料表面制备致密的 Nb2O5 增强 Ni-W-P 复合镀层,且随着 Nb2O5 含量的增加,复合镀层的耐腐蚀性能提高。
英文摘要:
      Objective To protect the surface of NdFeB permanent magnetic materials and improve its corrosion resistance. Methods The oxide particles enhanced crystalline and amorphous Ni-W-P/ Nb2O5 composite coatings were deposited on the NdFeB substrate using electroless plating, respectively. The microstructure, chemical elements distribution and the existed phases of the coatings were analyzed. The corrosion resistance of the composite coatings was also evaluated using weight loss experiments. Results The crystalline and amorphous composite coatings were formed correspondingly while the mass concentration of NaH2PO2· H2 O was 20 g / L and 35 g / L, respectively. The dissimilar Nb2 O5 particles were dispersed inside the crystalline and amorphous Ni-W-P / Nb2 O5 composite coatings which showed closely nodules structure. The XRD patterns of the coatings indicated that there was no diffraction peak related to the NdFeB substrate. When the Nb2 O5 mass concentration was increased from 5 to 15 g / L, the corrosion rate of the crystalline and amorphous coatings formed decreased markedly, whereas the corrosion rate of the coatings decreased tardily when the Nb2 O5 mass concentration was increased from 15 to 20 g / L. Conclusion The consolidated Nb2 O5 particles enhanced Ni-W-P / Nb2 O5 composite coatings could be prepared by electroless plating. And its corrosion resistance was improved with increasing Nb2 O5 concentration.
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