{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,19]],"date-time":"2026-04-19T17:55:43Z","timestamp":1776621343603,"version":"3.51.2"},"reference-count":40,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2024,9,19]],"date-time":"2024-09-19T00:00:00Z","timestamp":1726704000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"open research fund of Songshan Lake Materials Laboratory","award":["2023SLABFK09"],"award-info":[{"award-number":["2023SLABFK09"]}]},{"name":"open research fund of Songshan Lake Materials Laboratory","award":["51901079"],"award-info":[{"award-number":["51901079"]}]},{"name":"open research fund of Songshan Lake Materials Laboratory","award":["2023A1515010655"],"award-info":[{"award-number":["2023A1515010655"]}]},{"name":"open research fund of Songshan Lake Materials Laboratory","award":["2021A1515010451"],"award-info":[{"award-number":["2021A1515010451"]}]},{"name":"open research fund of Songshan Lake Materials Laboratory","award":["2314050002348"],"award-info":[{"award-number":["2314050002348"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["2023SLABFK09"],"award-info":[{"award-number":["2023SLABFK09"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["51901079"],"award-info":[{"award-number":["51901079"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["2023A1515010655"],"award-info":[{"award-number":["2023A1515010655"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["2021A1515010451"],"award-info":[{"award-number":["2021A1515010451"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["2314050002348"],"award-info":[{"award-number":["2314050002348"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003453","name":"Natural Science Foundation of Guangdong Province","doi-asserted-by":"publisher","award":["2023SLABFK09"],"award-info":[{"award-number":["2023SLABFK09"]}],"id":[{"id":"10.13039\/501100003453","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003453","name":"Natural Science Foundation of Guangdong Province","doi-asserted-by":"publisher","award":["51901079"],"award-info":[{"award-number":["51901079"]}],"id":[{"id":"10.13039\/501100003453","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003453","name":"Natural Science Foundation of Guangdong Province","doi-asserted-by":"publisher","award":["2023A1515010655"],"award-info":[{"award-number":["2023A1515010655"]}],"id":[{"id":"10.13039\/501100003453","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003453","name":"Natural Science Foundation of Guangdong Province","doi-asserted-by":"publisher","award":["2021A1515010451"],"award-info":[{"award-number":["2021A1515010451"]}],"id":[{"id":"10.13039\/501100003453","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003453","name":"Natural Science Foundation of Guangdong Province","doi-asserted-by":"publisher","award":["2314050002348"],"award-info":[{"award-number":["2314050002348"]}],"id":[{"id":"10.13039\/501100003453","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"<jats:p>In order to improve the magnetocaloric properties of MnNiSi-based alloys, a new type of high-entropy magnetocaloric alloy was constructed. In this work, Mn0.6Ni1\u2212xSi0.62Fe0.4CoxGe0.38 (x = 0.4, 0.45, and 0.5) are found to exhibit magnetostructural first-order phase transitions from high-temperature Ni2In-type phases to low-temperature TiNiSi-type phases so that the alloys can achieve giant magnetocaloric effects. We investigate why chexagonal\/ahexagonal (chexa\/ahexa) gradually increases upon Co substitution, while phase transition temperature (Ttr) and isothermal magnetic entropy change (\u0394SM) tend to gradually decrease. In particular, the x = 0.4 alloy with remarkable magnetocaloric properties is obtained by tuning Co\/Ni, which shows a giant entropy change of 48.5 J\u2219kg\u22121K\u22121 at 309 K for 5 T and an adiabatic temperature change (\u0394Tad) of 8.6 K at 306.5 K. Moreover, the x = 0.55 HEA shows great hardness and compressive strength with values of 552 HV2 and 267 MPa, respectively, indicating that the mechanical properties undergo an effective enhancement. The large \u0394SM and \u0394Tad may enable the MnNiSi-based HEAs to become a potential commercialized magnetocaloric material.<\/jats:p>","DOI":"10.3390\/e26090799","type":"journal-article","created":{"date-parts":[[2024,9,19]],"date-time":"2024-09-19T04:59:54Z","timestamp":1726721994000},"page":"799","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Enhanced Magnetocaloric Properties of the (MnNi)0.6Si0.62(FeCo)0.4Ge0.38 High-Entropy Alloy Obtained by Co Substitution"],"prefix":"10.3390","volume":"26","author":[{"given":"Zhigang","family":"Zheng","sequence":"first","affiliation":[{"name":"School of Materials Science & Engineering, South China University of Technology, Guangzhou 510640, China"},{"name":"Yangjiang Branch, Guangdong Laboratory Materials Science and Technology Yangjing Advanced Alloys Laboratory, Yangjiang 529599, China"}]},{"given":"Pengyan","family":"Huang","sequence":"additional","affiliation":[{"name":"School of Materials Science & Engineering, South China University of Technology, Guangzhou 510640, China"}]},{"given":"Xinglin","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Materials Science & Engineering, South China University of Technology, Guangzhou 510640, China"}]},{"given":"Hongyu","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Materials Science & Engineering, South China University of Technology, Guangzhou 510640, China"}]},{"given":"Shan","family":"Da","sequence":"additional","affiliation":[{"name":"School of Materials Science & Engineering, South China University of Technology, Guangzhou 510640, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9810-6342","authenticated-orcid":false,"given":"Gang","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Materials Science & Engineering, South China University of Technology, Guangzhou 510640, China"},{"name":"Yangjiang Branch, Guangdong Laboratory Materials Science and Technology Yangjing Advanced Alloys Laboratory, Yangjiang 529599, China"}]},{"given":"Zhaoguo","family":"Qiu","sequence":"additional","affiliation":[{"name":"School of Materials Science & Engineering, South China University of Technology, Guangzhou 510640, China"},{"name":"Yangjiang Branch, Guangdong Laboratory Materials Science and Technology Yangjing Advanced Alloys Laboratory, Yangjiang 529599, China"}]},{"given":"Dechang","family":"Zeng","sequence":"additional","affiliation":[{"name":"School of Materials Science & Engineering, South China University of Technology, Guangzhou 510640, China"},{"name":"Yangjiang Branch, Guangdong Laboratory Materials Science and Technology Yangjing Advanced Alloys Laboratory, Yangjiang 529599, China"}]}],"member":"1968","published-online":{"date-parts":[[2024,9,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"294","DOI":"10.1080\/01430750.2014.962088","article-title":"Magnetic Refrigeration: A Promising New Technology for Energy Saving","volume":"37","author":"Aprea","year":"2016","journal-title":"Int. J. Ambient. Energy"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"3165","DOI":"10.1007\/s12206-022-0547-2","article-title":"Experimental Study on a Piston-Driven Type Magnetic Refrigeration Apparatus","volume":"36","author":"Lee","year":"2022","journal-title":"J. Mech. Sci. Technol."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"777","DOI":"10.1016\/j.jmmm.2008.11.078","article-title":"Application of Magnetic Refrigeration and its Assessment","volume":"321","author":"Kitanovski","year":"2009","journal-title":"J. Magn. Magn. Mater."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Xie, Z., Zou, Z., He, B., Liu, L., and Mao, Z. (2021). Research Progress of Doped Manganite Materials in Magnetic Refrigeration. Front. Mater., 8.","DOI":"10.3389\/fmats.2021.771941"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"48","DOI":"10.1063\/PT.3.3022","article-title":"Solid-state Cooling with Caloric Materials","volume":"68","author":"Takeuchi","year":"2015","journal-title":"Phys. Today"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1394","DOI":"10.1002\/ente.201800201","article-title":"Caloric effects in Ferroic Materials: New Concepts for Cooling","volume":"6","year":"2018","journal-title":"Energy Technol."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"439","DOI":"10.1038\/nmat3951","article-title":"Caloric Materials near Ferroic Phase Transitions","volume":"13","author":"Moya","year":"2014","journal-title":"Nat. Mater."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"797","DOI":"10.1126\/science.abb0973","article-title":"Caloric Materials for Cooling and Heating","volume":"370","author":"Moya","year":"2020","journal-title":"Science"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"2067","DOI":"10.1016\/j.ssc.2012.08.016","article-title":"The Multicaloric Effect in Multiferroic Materials","volume":"152","author":"Vopson","year":"2012","journal-title":"Solid State Commun."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"214113","DOI":"10.1103\/PhysRevB.94.214113","article-title":"Towards multicaloric effect with ferroelectrics","volume":"94","author":"Liu","year":"2016","journal-title":"Phys. Rev. B"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"24016","DOI":"10.1088\/2515-7655\/acc6ef","article-title":"Cross-Coupling Contribution to the Isothermal Entropy Change in Multicaloric Materials","volume":"5","author":"Planes","year":"2023","journal-title":"J. Phys. Energy"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1971","DOI":"10.1007\/s10948-018-4666-z","article-title":"Review on Magnetocaloric Effect and Materials","volume":"31","author":"Ram","year":"2018","journal-title":"J. Supercond. Nov. Magn."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"150","DOI":"10.1038\/415150a","article-title":"Transition-metal-based magnetic refrigerants for room-temperature applications","volume":"415","author":"Tegus","year":"2002","journal-title":"Nature"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"021907","DOI":"10.1063\/1.5011743","article-title":"Barocaloric and Magnetocaloric effects in (MnNiSi)1\u2212x (FeCoGe)x","volume":"112","author":"Samanta","year":"2018","journal-title":"Appl. Phys. Lett."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"96","DOI":"10.1016\/j.scriptamat.2018.02.044","article-title":"Enhanced Mechanical Properties and Large Magnetocaloric effect in Epoxy-Bonded Mn0.98CoGe","volume":"150","author":"Zhu","year":"2018","journal-title":"Scr. Mater."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"117830","DOI":"10.1016\/j.actamat.2022.117830","article-title":"Low-melting Metal Bonded MM\u2032X\/In Composite with Largely Enhanced Mechanical Property and Anisotropic Negative Thermal Expansion","volume":"229","author":"Zhou","year":"2022","journal-title":"Acta Mater."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"336","DOI":"10.1016\/j.scriptamat.2020.04.035","article-title":"High-Strength and High-Ductility AlCoCrFeNi2.1 Eutectic High-Entropy Alloy Achieved via Precipitation Strengthening in a Heterogeneous Structure","volume":"186","author":"Xiong","year":"2020","journal-title":"Scr. Mater."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"114875","DOI":"10.1016\/j.scriptamat.2022.114875","article-title":"Rapid Alloy Design from Superior Eutectic High-Entropy Alloys","volume":"219","author":"Wu","year":"2022","journal-title":"Scr. Mater."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"e20220154","DOI":"10.1590\/1980-5373-mr-2022-0154","article-title":"Microstructure and Properties of Laser Cladding AlxFeCoCrNiMn High Entropy Alloy of Q345 Steel","volume":"26","author":"Yan","year":"2023","journal-title":"Mater. Res."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"1386","DOI":"10.1007\/s11666-022-01352-w","article-title":"An Assessment of the High-Temperature Oxidation Resistance of Selected Thermal Sprayed High Entropy Alloy Coatings","volume":"31","author":"Zhang","year":"2022","journal-title":"J. Therm. Spray Technol."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.jmst.2023.01.024","article-title":"High-Entropy (Sm0.2Eu0.2Gd0.2Dy0.2Er0.2)2Hf2O7 Ceramic with Superb Resistance to Radiation-Induced Amorphization","volume":"155","author":"Wu","year":"2023","journal-title":"J. Mater. Sci. Technol."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"111764","DOI":"10.1016\/j.commatsci.2022.111764","article-title":"Chemical Ordering effect on the Radiation Resistance of a CoNiCrFeMn High-Entropy Alloy","volume":"214","author":"Li","year":"2022","journal-title":"Comput. Mater. Sci."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"152111","DOI":"10.1016\/j.jallcom.2019.152111","article-title":"Effects of Annealing Temperature on Microstructures and Tensile Properties of a Single FCC Phase CoCuMnNi High-Entropy Alloy","volume":"812","author":"Kim","year":"2020","journal-title":"J. Alloys Compd."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"1759","DOI":"10.1007\/s11837-013-0761-6","article-title":"Alloy Design Strategies and Future Trends in High-Entropy Alloys","volume":"65","author":"Yeh","year":"2013","journal-title":"JOM"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"080702","DOI":"10.1063\/5.0058388","article-title":"Pushing the Limits of Magnetocaloric High-Entropy Alloys","volume":"9","author":"Law","year":"2021","journal-title":"APL Mater."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"37","DOI":"10.1557\/s43578-022-00712-0","article-title":"Review on Magnetocaloric High-Entropy Alloys: Design and Analysis Methods","volume":"38","author":"Law","year":"2022","journal-title":"J. Mater. Res."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"116931","DOI":"10.1016\/j.actamat.2021.116931","article-title":"Increased magnetocaloric response of FeMnNiGeSi high-entropy alloys","volume":"212","author":"Law","year":"2021","journal-title":"Acta Mater."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"481","DOI":"10.1016\/j.actamat.2016.12.021","article-title":"Rare-earth high-entropy alloys with giant magnetocaloric effect","volume":"125","author":"Yuan","year":"2017","journal-title":"Acta Mater."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"171483","DOI":"10.1016\/j.jallcom.2023.171483","article-title":"Giant magnetocaloric effects of MnNiSi-based high-entropy alloys near room temperature","volume":"966","author":"Zheng","year":"2023","journal-title":"J. Alloys Compd."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"721","DOI":"10.1002\/pssa.2210380235","article-title":"Crystal and Magnetic Structure of NiMnGe","volume":"38","author":"Bazela","year":"1976","journal-title":"Phys. Status Solidi"},{"key":"ref_31","first-page":"12016","article-title":"The High-Pressure Stability of Ni2In-type Structure of ZrO2 with Respect to OII and Fe2P-type Phases: A First-Principles Study, IOP Conference Series","volume":"305","author":"Tarawneh","year":"2018","journal-title":"Mater. Sci. Eng."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"73","DOI":"10.1016\/j.jmst.2021.11.019","article-title":"Large Enhancement of Magnetocaloric Effect Induced by Dual Regulation Effects of Hydrostatic Pressure in Mn0.94Fe0.06NiGe Compound","volume":"114","author":"Zhou","year":"2022","journal-title":"J. Mater. Sci. Technol."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"176","DOI":"10.1016\/0304-8853(81)90116-5","article-title":"Crystal and magnetic structure of CoMnGe, CoFeGe, FeMnGe and NiFeGe","volume":"25","author":"Tomkowicz","year":"1981","journal-title":"J. Magn. Magn. Mater."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"873","DOI":"10.1038\/ncomms1868","article-title":"Stable magnetostructural coupling with tunable magnetoresponsive effects in hexagonal ferromagnets","volume":"3","author":"Liu","year":"2012","journal-title":"Nat. Commun."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"7","DOI":"10.1016\/j.jallcom.2016.12.156","article-title":"Tunable magneto-structural phase transition and magnetocaloric effect in Mn1\u2212xNi1\u2212xCo2xSi1\u2212xGex system","volume":"698","author":"Zhao","year":"2017","journal-title":"J. Alloys Compd."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"146","DOI":"10.1016\/j.jmmm.2012.12.001","article-title":"Phase diagram, ferromagnetic martensitic transformation and magnetoresponsive properties of Fe-doped MnCoGe alloys","volume":"332","author":"Li","year":"2013","journal-title":"J. Magn. Magn. Mater."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"065102","DOI":"10.1063\/1.5128949","article-title":"Simple Practical System for Directly Measuring Magnetocaloric effects under Large Magnetic Fields","volume":"91","author":"Liu","year":"2020","journal-title":"Rev. Sci. Instrum."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"849","DOI":"10.1080\/14686996.2020.1856629","article-title":"Effect of Dy substitution in the giant magnetocaloric properties of HoB2","volume":"21","author":"Castro","year":"2021","journal-title":"Sci. Technol. Adv. Mater."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"100","DOI":"10.1016\/j.ijrefrig.2022.11.034","article-title":"Dynamical Response of Gadolinium in Alternating Magnetic Fields up to 9Hz","volume":"146","author":"Zheng","year":"2023","journal-title":"Int. J. Refrig."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"2680","DOI":"10.1038\/s41467-018-05111-w","article-title":"A Quantitative Criterion for Determining the Order of Magnetic Phase Transitions Using the Magnetocaloric Effect","volume":"9","author":"Law","year":"2018","journal-title":"Nat. Commun."}],"container-title":["Entropy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1099-4300\/26\/9\/799\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T15:59:07Z","timestamp":1760111947000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1099-4300\/26\/9\/799"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,9,19]]},"references-count":40,"journal-issue":{"issue":"9","published-online":{"date-parts":[[2024,9]]}},"alternative-id":["e26090799"],"URL":"https:\/\/doi.org\/10.3390\/e26090799","relation":{},"ISSN":["1099-4300"],"issn-type":[{"value":"1099-4300","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,9,19]]}}}