在Ti10Ni5Si合金上阳极制备Ti-Ni-Si-O纳米结构

Anodic Fabrication of Ti-Ni-Si-O Nanostructures on Ti10Ni5Si Alloy.

作者信息

Li Ting, Ding Dongyan, Li Nan

机构信息

Handan Institute of Innovation, Peking University, Handan 056000, China.

Institute of Electronic Materials and Technology, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.

出版信息

Materials (Basel). 2019 Apr 23;12(8):1315. doi: 10.3390/ma12081315.

DOI:10.3390/ma12081315

PMID:31018514

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6515224/

Abstract

Ti-Ni-Si-O nanostructures were synthesized on Ti10Ni5Si alloy through an electrochemical anodization in electrolyte solutions containing ammonium fluoride (NHF). The anodic oxide structures were affected by the electrochemical anodization parameters, including the electrolyte viscosity, water content, anodization potential and anodization time. Using an anodization potential of 40 V for 90 min in an ethylene glycol/glycerol electrolyte with 3 vol.% deionized water, highly ordered self-organized nanotube arrays were obtained in the α-Ti phase region of the alloy substrate, with an average inner diameter of 70 nm and a wall thickness of about 12 nm. Self-organized nanopore structures with an average pore diameter of 25 nm grew in the TiSi phase region. Only etching pits were found in the TiNi phase region. The Ti-Ni-Si-O nanostructures were characterized using scanning electron microscopy and energy dispersive spectroscopy. In addition, a formation mechanism of different nanostructures was presented.

摘要

通过在含有氟化铵（NHF）的电解液中进行电化学阳极氧化，在Ti10Ni5Si合金上合成了Ti-Ni-Si-O纳米结构。阳极氧化结构受电化学阳极氧化参数的影响，这些参数包括电解液粘度、含水量、阳极氧化电位和阳极氧化时间。在含有3体积%去离子水的乙二醇/甘油电解液中，以40 V的阳极氧化电位进行90分钟的阳极氧化，在合金基底的α-Ti相区域获得了高度有序的自组织纳米管阵列，其平均内径为70 nm，壁厚约为12 nm。在TiSi相区域生长出平均孔径为25 nm的自组织纳米孔结构。在TiNi相区域仅发现蚀刻坑。使用扫描电子显微镜和能量色散光谱对Ti-Ni-Si-O纳米结构进行了表征。此外，还提出了不同纳米结构的形成机理。