静电纺丝法制备YAG-ZrO2复合纳米纤维

兰州理工大学学报 ›› 2020, Vol. 46 ›› Issue (3): 28-33.

静电纺丝法制备YAG-ZrO₂复合纳米纤维

何玲^1,2, 秦兴文^1,2, 冯玉洁³, 潘莉莉^1,2, 孙卫民¹, 李文生^1,2

1.兰州理工大学材料科学与工程学院, 甘肃兰州 730050;
2.兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室, 甘肃兰州 730050;
3.上海蓝滨石化设和轩有限责任公司, 上海 201518

收稿日期:2019-05-13 出版日期:2020-06-28 发布日期:2020-08-19
作者简介:何玲(1976-),女,甘肃天水人,教授.
基金资助:
甘肃省重点研发计划项目(17JR7GA014)

Preparation of YAG-ZrO₂ composite nanofibers by electrospinning

HE Ling^1,2, QIN Xing-wen^1,2, FENG Yu-jie³, PAN Li-li^1,2, SUN Wei-min¹, LI Wen-sheng^1,2

1. College of Materials Engineering, LanzhouInst. of Tech., Lanzhou 730050, China;
2. State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou Univ. of Tech., Lanzhou 730050, China;
3. LANPEC Technologyies Limited, Shanghai 201518, China

Received:2019-05-13 Online:2020-06-28 Published:2020-08-19

摘要/Abstract

摘要： 运用静电纺丝技术结合热处理工艺成功制备了形貌光滑、尺寸均匀的YAG-ZrO₂复合纳米纤维.采用XRD、FT-IR和SEM探索了电压与浓度对复合纤维物相及形貌的影响.结果表明:电压为25 kV、PVA质量分数为11%时得到表面光滑、尺寸均一的复合纤维前躯体.前驱体纤维经过1 200 ℃煅烧5 h后,具有较高的结晶度,直径约为500 nm且比较均匀.为了使YAG-ZrO₂纤维增强的复合材料具有自检性,研究了YAG-ZrO₂纤维的发光性能,发现用290 nm紫外光激发YAG-ZrO₂:Tb³⁺复合纳米纤维,在581 nm处出现明显的发射峰,并发出绿光,这一现象属于Tb³⁺的⁴D₄→⁷F₄跃迁.应力-发光实验结果表明,YAG-ZrO₂:Tb³⁺纤维可以实现对铝基复合材料应力-应变的检测.

关键词: 静电纺丝技术, YAG-ZrO₂纳米纤维, 发光性能

Abstract: YAG-ZrO₂ composite nano-fibers with smooth morphology and uniform size were successfully prepared by electrospinning and heat treatment. Effects of voltage and concentration on the phase and morphology of composite fibers were studied by XRD, FT-IR and SEM in this research. Obtained results show that the composite fiber has a smooth surface and uniform size if voltage of 25 kV and the PVA content of 11% applied. After annealing at 1 200 ℃ for 5 h, the precursor fiber has a higher crystallinity and a uniform diameter of about 500 nm. In order to make the YAG-ZrO₂ fiber reinforced composites, which possesses the function of self-testing, the luminescence properties of YAG-ZrO₂ fibers were also investigated. It was found that sharp emission peaks at 581 nm were detected when YAG-ZrO₂:Tb³⁺ composite nanofibers were excited by 290 nm UV light, emitting green light as well. This phenomenon belongs to the ⁴D₄→⁷F₄ transition of Tb³⁺. Stress-luminescence experiment results show that YAG-ZrO₂:Tb³⁺ fiber could detect the stress and strain of aluminum matrix composites.

Key words: electrospinning technology, YAG-ZrO₂ nanofibers, luminescence properties

中图分类号:

TB34

何玲, 秦兴文, 冯玉洁, 潘莉莉, 孙卫民, 李文生. 静电纺丝法制备YAG-ZrO₂复合纳米纤维[J]. 兰州理工大学学报, 2020, 46(3): 28-33.

HE Ling, QIN Xing-wen, FENG Yu-jie, PAN Li-li, SUN Wei-min, LI Wen-sheng. Preparation of YAG-ZrO₂ composite nanofibers by electrospinning[J]. Journal of Lanzhou University of Technology, 2020, 46(3): 28-33.

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静电纺丝法制备YAG-ZrO₂复合纳米纤维

Preparation of YAG-ZrO₂ composite nanofibers by electrospinning

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