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Hu H, Xu C, Lai T, Yang Q, Peng X, Liu J, Xiong Y, Qiu J. Sub-Nanometer Accuracy Combination Processing Technology for Nickel–Phosphorus Modified Surfaces Based on Aluminum Reflector Mirror. MICROMACHINES 2022; 13:mi13040560. [PMID: 35457865 PMCID: PMC9025228 DOI: 10.3390/mi13040560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/25/2022] [Accepted: 03/27/2022] [Indexed: 11/16/2022]
Abstract
The surface of metal mirrors is often polished by electroless coating with a Ni–P modified layer after single-point diamond turning. In practice, however, improvements in mirror quality are closely related to the polishing environment, polishing medium, and polishing force. If not adequately controlled, processing defects such as visible scratches can lead to the deterioration of surface roughness. Based on the Ni–P modified surface of a metal reflector mirror, this study optimizes the configuration of magnetorheological figuring (MRF) fluid and polishing process parameters so that MRF high-efficiency surface modification can be realized and the scratch problem can be resolved. The processing method of a high-performance metal mirror is developed by studying the high-efficiency and high-precision processing technology based on small head smoothing. The surface roughness achieved by the proposed method was better than Ra = 0.39 nm. The ultrasonic cleaning process effectively improved the surface roughness after processing. According to the combined processing technology developed in this study, the modified layer of the parabolic mirror with a diameter of 370 mm was processed, and the surface quality was increased from RMS = 338.684 nm to RMS = 21.267 nm.
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Affiliation(s)
- Hao Hu
- Laboratory of Science and Technology on Integrated Logistics Support, College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China; (H.H.); (C.X.); (Q.Y.); (J.L.); (Y.X.)
- Hunan Key Laboratory of Ultra-Precision Machining Technology, Changsha 410073, China
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410022, China;
| | - Chao Xu
- Laboratory of Science and Technology on Integrated Logistics Support, College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China; (H.H.); (C.X.); (Q.Y.); (J.L.); (Y.X.)
- Hunan Key Laboratory of Ultra-Precision Machining Technology, Changsha 410073, China
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410022, China;
| | - Tao Lai
- Laboratory of Science and Technology on Integrated Logistics Support, College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China; (H.H.); (C.X.); (Q.Y.); (J.L.); (Y.X.)
- Hunan Key Laboratory of Ultra-Precision Machining Technology, Changsha 410073, China
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410022, China;
- Correspondence: (T.L.); (X.P.)
| | - Qilin Yang
- Laboratory of Science and Technology on Integrated Logistics Support, College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China; (H.H.); (C.X.); (Q.Y.); (J.L.); (Y.X.)
- Hunan Key Laboratory of Ultra-Precision Machining Technology, Changsha 410073, China
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410022, China;
| | - Xiaoqiang Peng
- Laboratory of Science and Technology on Integrated Logistics Support, College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China; (H.H.); (C.X.); (Q.Y.); (J.L.); (Y.X.)
- Hunan Key Laboratory of Ultra-Precision Machining Technology, Changsha 410073, China
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410022, China;
- Correspondence: (T.L.); (X.P.)
| | - Junfeng Liu
- Laboratory of Science and Technology on Integrated Logistics Support, College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China; (H.H.); (C.X.); (Q.Y.); (J.L.); (Y.X.)
- Hunan Key Laboratory of Ultra-Precision Machining Technology, Changsha 410073, China
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410022, China;
| | - Yupeng Xiong
- Laboratory of Science and Technology on Integrated Logistics Support, College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China; (H.H.); (C.X.); (Q.Y.); (J.L.); (Y.X.)
- Hunan Key Laboratory of Ultra-Precision Machining Technology, Changsha 410073, China
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410022, China;
| | - Jia Qiu
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410022, China;
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Electrochemical Processing and Thermal Properties of Functional Core/Multi-Shell ZnAl/Ni/NiP Microparticles. MATERIALS 2021; 14:ma14040834. [PMID: 33572411 PMCID: PMC7916222 DOI: 10.3390/ma14040834] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 01/30/2021] [Accepted: 02/04/2021] [Indexed: 11/30/2022]
Abstract
Electroless deposition on zinc and its alloys is challenging because of the negative standard potential of zinc, the formation of poor surface layers during oxidation in aqueous solutions, and extensive hydrogen evolution. Therefore, there are only few reports of electroless deposition on Zn and its alloys, neither of them on micro/nano powders. Here, we propose a two-step process that allows the formation of compact, uniform, and conformal Ni/NiP shell on Zn-based alloy microparticles without agglomeration. The process utilizes controlled galvanic displacement of Ni deposition in ethanol-based bath, followed by NiP autocatalytic deposition in an alkaline aqueous solution. The mechanism and effect of deposition conditions on the shell formation are discussed. Thermal stability and functional analysis of core-shell powder reveal a thermal storage capability of 98.5% with an encapsulation ratio of 66.5%. No significant morphological change of the core-shell powder and no apparent leakage of the ZnAl alloy through the Ni shell are evident following differential scanning calorimetry tests. Our two-step process paves the way to utilize electroless deposition for depositing metallic-based functional coatings on Zn-based bulk and powder materials.
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Vinokurov EG, Mukhametova GM, Vasil’ev VV, Burukhina TF, Skopintsev VD. Influence of Characteristics of Nickel Complex Compounds on the Rate of Chemical Deposition and Composition of Nickel–Phosphorus Alloy. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2019. [DOI: 10.1134/s0040579519040286] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Kovalska N, Pfaffeneder-Kmen M, Tsyntsaru N, Mann R, Henrikas Cesiulis, Hansal W, Kautek W. The role of glycine in the iron-phosphorous alloy electrodeposition. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.03.203] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wojewoda-Budka J, Wierzbicka-Miernik A, Litynska-Dobrzynska L, Szczerba M, Mordarski G, Mosiałek M, Huber Z, Zieba P. Microstructure characteristics and phase transformations of the Ni-P and Ni-P-Re electroless deposited coatings after heat treatment. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.05.043] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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