A structural design approach toward metallic glass with simultaneous tunable thermal expansion and high structural stiffness

A structural design approach toward metallic glass with simultaneous tunable thermal expansion and high structural stiffness | 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 Research Article A structural design approach toward metallic glass with simultaneous tunable thermal expansion and high structural stiffness Yunhao Zhang, Ye Zhou, Conghao Xu, Jiacheng Zhang, Zhendong Sha This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5786055/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 28 Apr, 2025 Read the published version in Journal of Materials Science: Materials in Engineering → Version 1 posted You are reading this latest preprint version Abstract Although metallic glasses (MGs) possess relatively low thermal expansion coefficient (TEC)compared to their crystalline counterparts due to the existence of free volume, their TEC values are still too large to meet the demands of practical application. Here, we report that a bi-material structure (BMS) consisting of curved traditional materials (e.g., Al alloy) with MGs can be used to obtain tunable TEC, while maintaining high structural stiffness. The curved Al alloy has a pulling effect on the MGs when the curvature changes, limiting the thermal expansion of MGs. Through the theoretical model and finite element method analysis, it is further found that both TEC and stiffness can be significantly altered through changing the degree of curvature, the contact surface, and the thickness ratio of MG over Al alloy. The present study not only offers a solution to the TEC reduction of MGs, but also suggests that BMS can be used to design advanced structural materials that possess adjustable TEC and high stiffness. Metallic glass Thermal expansion Stiffness Finite element method Full Text Cite Share Download PDF Status: Published Journal Publication published 28 Apr, 2025 Read the published version in Journal of Materials Science: Materials in Engineering → 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-5786055","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":400512977,"identity":"ec0c07c6-79ff-4e0d-89f1-89167260983e","order_by":0,"name":"Yunhao Zhang","email":"","orcid":"","institution":"Xi'an Jiaotong University","correspondingAuthor":false,"prefix":"","firstName":"Yunhao","middleName":"","lastName":"Zhang","suffix":""},{"id":400512978,"identity":"a13c5c0b-e389-4ae1-b8df-4a070a5a9c0f","order_by":1,"name":"Ye Zhou","email":"","orcid":"","institution":"Xi'an Jiaotong University","correspondingAuthor":false,"prefix":"","firstName":"Ye","middleName":"","lastName":"Zhou","suffix":""},{"id":400512979,"identity":"b2e73219-12b1-4fad-b6ea-c220c575ff26","order_by":2,"name":"Conghao Xu","email":"","orcid":"","institution":"Xi'an Jiaotong University","correspondingAuthor":false,"prefix":"","firstName":"Conghao","middleName":"","lastName":"Xu","suffix":""},{"id":400512980,"identity":"5d2d58d0-a36a-4adc-9937-6a7c9e5f1e6e","order_by":3,"name":"Jiacheng Zhang","email":"","orcid":"","institution":"Xi'an Jiaotong University","correspondingAuthor":false,"prefix":"","firstName":"Jiacheng","middleName":"","lastName":"Zhang","suffix":""},{"id":400512981,"identity":"68857444-22a7-4f17-a15a-50b8f7d57741","order_by":4,"name":"Zhendong Sha","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABKElEQVRIiWNgGAWjYDACCSDmgTAYHwBJGSAzAcRnbCBCC7MBkASxExuI1cIGYzPi1SI/u/nYgzcVd+zmz25+VnWjxoKHQSLh+WMeBhvZDQeYnz3AooVxzrF0wzlnniVvuHPM7HbOMaDDeA4kNvMwpBlvOMBmboBFC7NEjpk0b9vhZAOJBKAWNqAW9gaQlsOJGw7wgJ2KDtgk8r+BtcjPSP9WnPMPqIWZAaTlP04tPBI5bCAtdgw3csyYc9vgthzAqUVCIs1Mcs6ZwwkGN3KKpXP7JHjYgH6ZOccg2XjmYTYzbFrkZyQ/k3hTcdge6LCNn3O+1cnxS+QkfHhTYSfbd7z5GTYtMACOPYjvGHgSGBhAQcWMRz0Q2COx2Q/gVzsKRsEoGAUjDQAAgFxeR46bnmsAAAAASUVORK5CYII=","orcid":"https://orcid.org/0000-0003-3641-4080","institution":"Xi'an Jiaotong University","correspondingAuthor":true,"prefix":"","firstName":"Zhendong","middleName":"","lastName":"Sha","suffix":""}],"badges":[],"createdAt":"2025-01-08 06:12:03","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-5786055/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-5786055/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1186/s40712-025-00257-0","type":"published","date":"2025-04-28T15:57:28+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":81987908,"identity":"0444bc74-838c-4d3a-8a36-18940363993b","added_by":"auto","created_at":"2025-05-05 16:06:46","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":737250,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-5786055/v1_covered_01f6e0ae-8fd6-4a81-91c6-f28d685964c9.pdf"}],"financialInterests":"","formattedTitle":"A structural design approach toward metallic glass with simultaneous tunable thermal expansion and high structural stiffness","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":true,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"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},"keywords":"Metallic glass, Thermal expansion, Stiffness, Finite element method","lastPublishedDoi":"10.21203/rs.3.rs-5786055/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-5786055/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eAlthough metallic glasses (MGs) possess relatively low thermal expansion coefficient (TEC)compared to their crystalline counterparts due to the existence of free volume, their TEC values are still too large to meet the demands of practical application. 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