Study on the coating performance of copper layer

Study on the coating performance of copper layer | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Study on the coating performance of copper layer Jingguo Zhang, Yubo Zhang, Shanyu Han, Zhanrong Li, Huijun He, and 7 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8131772/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract A copper-coated iron composite exhibits both the mechanical properties of iron and the electrical conductivity of copper; however, its interfacial bonding strength and coating uniformity are significantly influenced by the preparation process. In this paper, the effects of the amount of additives in copper salt solution, the accumulation time of wet powder after coating, and the reduction temperature on the microstructure and properties of copper-iron composite powder were studied by the chemical replacement method. The microstructure and macroscopic morphology of the copper-iron composite powder were characterized using scanning electron microscopy (SEM) and a Digital Microscope. The crystal phase structure of copper-iron composite powder was detected by X-ray diffractometer (XRD). The results show that when the amount of additive in the copper salt solution is 1.0%, the copper coating layer on the surface is smooth and continuous. Deviation from this value will lead to overlap of the copper layer, rough surface, and an increase in oxygen content. When the wet powder accumulation time is more than 0 h, the copper layer on the surface is oxidized, and the CuO phase appears. The reduction temperature has a significant effect on the morphology and comprehensive properties of the copper layer. The optimum reduction temperature is 650°C. The copper layer on the surface of the obtained copper-iron composite powder is smooth, continuous, and dense. The oxygen content is 0.31%, the apparent density is 2.12 g / cm 3 , and the flow rate is 43.47 s / 50 g. This study provides a theoretical basis and process guidance for the development of high-density coated and low-oxygen copper-coated iron powder materials. Physical sciences/Engineering Physical sciences/Materials science copper-iron composite powder additive accumulation time reduction temperature copper coating layer Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-8131772","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":562586073,"identity":"828c4bd4-855e-4c5e-8698-05eee2108959","order_by":0,"name":"Jingguo Zhang","email":"","orcid":"","institution":"Gricy Advanced Materials Co., Ltd.","correspondingAuthor":false,"prefix":"","firstName":"Jingguo","middleName":"","lastName":"Zhang","suffix":""},{"id":562586074,"identity":"6aeb0355-d816-40f8-ba10-f6f0bb0f043c","order_by":1,"name":"Yubo Zhang","email":"","orcid":"","institution":"Gricy Advanced Materials Co., 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In this paper, the effects of the amount of additives in copper salt solution, the accumulation time of wet powder after coating, and the reduction temperature on the microstructure and properties of copper-iron composite powder were studied by the chemical replacement method. The microstructure and macroscopic morphology of the copper-iron composite powder were characterized using scanning electron microscopy (SEM) and a Digital Microscope. The crystal phase structure of copper-iron composite powder was detected by X-ray diffractometer (XRD). The results show that when the amount of additive in the copper salt solution is 1.0%, the copper coating layer on the surface is smooth and continuous. Deviation from this value will lead to overlap of the copper layer, rough surface, and an increase in oxygen content. When the wet powder accumulation time is more than 0 h, the copper layer on the surface is oxidized, and the CuO phase appears. The reduction temperature has a significant effect on the morphology and comprehensive properties of the copper layer. The optimum reduction temperature is 650\u0026deg;C. The copper layer on the surface of the obtained copper-iron composite powder is smooth, continuous, and dense. The oxygen content is 0.31%, the apparent density is 2.12 g / cm\u003csup\u003e3\u003c/sup\u003e, and the flow rate is 43.47 s / 50 g. This study provides a theoretical basis and process guidance for the development of high-density coated and low-oxygen copper-coated iron powder materials.\u003c/p\u003e","manuscriptTitle":"Study on the coating performance of copper layer","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-12-19 12:42:35","doi":"10.21203/rs.3.rs-8131772/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"bf60ec1c-69dd-4203-9185-0e38708e75d1","owner":[],"postedDate":"December 19th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[{"id":59912511,"name":"Physical sciences/Engineering"},{"id":59912512,"name":"Physical sciences/Materials science"}],"tags":[],"updatedAt":"2026-01-12T09:25:01+00:00","versionOfRecord":[],"versionCreatedAt":"2025-12-19 12:42:35","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-8131772","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-8131772","identity":"rs-8131772","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}