Preparation of ultrafine spherical nickel powders
Ultrafine nickel powders were synthesized by liquid phase reduction using water as the reaction system and hydrazine hydrate as the reducing agent without the dispersant and surfactant. The powders were characterized by scanning electron microscope (SEM), X-ray diffractometer (XRD), laser particle s...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Powder Metallurgy Technology
2021-04-01
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| Series: | Fenmo yejin jishu |
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| Online Access: | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2019090003 |
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| author | SI Jia-jia SU Xiao-lei |
| author_facet | SI Jia-jia SU Xiao-lei |
| author_sort | SI Jia-jia |
| collection | DOAJ |
| description | Ultrafine nickel powders were synthesized by liquid phase reduction using water as the reaction system and hydrazine hydrate as the reducing agent without the dispersant and surfactant. The powders were characterized by scanning electron microscope (SEM), X-ray diffractometer (XRD), laser particle size analyzer, and energy disperse spectroscope (EDS). The effects of the reaction temperature and [N2H4]/[Ni2+] concentration ratio on the average particle size, morphology, dispersibility, reduction rate, and purity of the nickel powders were investigated. The variation of the powder dispersibility during the morphology transformation of nickel powders from thorn spherical to spherical was discussed. The results show that, under the reaction temperature of 80 ℃ and [N2H4]/[Ni2+]=8, the prepared nickel powders show the high purity, good sphericity, narrow particle size distribution, and high reduction rate with the average particle size of 380 nm. |
| format | Article |
| id | doaj-art-ac0408696c694bc8889e881069d0d261 |
| institution | OA Journals |
| issn | 1001-3784 |
| language | zho |
| publishDate | 2021-04-01 |
| publisher | Editorial Office of Powder Metallurgy Technology |
| record_format | Article |
| series | Fenmo yejin jishu |
| spelling | doaj-art-ac0408696c694bc8889e881069d0d2612025-08-20T02:34:19ZzhoEditorial Office of Powder Metallurgy TechnologyFenmo yejin jishu1001-37842021-04-0139217718310.19591/j.cnki.cn11-1974/tf.2019090003Preparation of ultrafine spherical nickel powdersSI Jia-jiaSU Xiao-leiUltrafine nickel powders were synthesized by liquid phase reduction using water as the reaction system and hydrazine hydrate as the reducing agent without the dispersant and surfactant. The powders were characterized by scanning electron microscope (SEM), X-ray diffractometer (XRD), laser particle size analyzer, and energy disperse spectroscope (EDS). The effects of the reaction temperature and [N2H4]/[Ni2+] concentration ratio on the average particle size, morphology, dispersibility, reduction rate, and purity of the nickel powders were investigated. The variation of the powder dispersibility during the morphology transformation of nickel powders from thorn spherical to spherical was discussed. The results show that, under the reaction temperature of 80 ℃ and [N2H4]/[Ni2+]=8, the prepared nickel powders show the high purity, good sphericity, narrow particle size distribution, and high reduction rate with the average particle size of 380 nm.https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2019090003liquid phase reductionnickel powdersmorphologysize distribution |
| spellingShingle | SI Jia-jia SU Xiao-lei Preparation of ultrafine spherical nickel powders Fenmo yejin jishu liquid phase reduction nickel powders morphology size distribution |
| title | Preparation of ultrafine spherical nickel powders |
| title_full | Preparation of ultrafine spherical nickel powders |
| title_fullStr | Preparation of ultrafine spherical nickel powders |
| title_full_unstemmed | Preparation of ultrafine spherical nickel powders |
| title_short | Preparation of ultrafine spherical nickel powders |
| title_sort | preparation of ultrafine spherical nickel powders |
| topic | liquid phase reduction nickel powders morphology size distribution |
| url | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2019090003 |
| work_keys_str_mv | AT sijiajia preparationofultrafinesphericalnickelpowders AT suxiaolei preparationofultrafinesphericalnickelpowders |