G. V. Afonin, J. C. Qiao, A. S. Makarov, R. A. Konchakov, E. V. Goncharova, N. P. Kobelev, V. A. Khonik
{"title":"高熵金属眼镜,它意味着什么?","authors":"G. V. Afonin, J. C. Qiao, A. S. Makarov, R. A. Konchakov, E. V. Goncharova, N. P. Kobelev, V. A. Khonik","doi":"arxiv-2403.20115","DOIUrl":null,"url":null,"abstract":"We performed calorimetric measurements on 30 bulk metallic glasses differing\nwith their mixing entropies DSmix. On this basis, the excess entropies DS and\nexcess enthalpies DH of glasses with respect to their maternal crystalline\nstates are calculated. It is found that the excess entropy DS on the average\ndecreases with increasing mixing entropy DSmix. This means that so-called\n\"high-entropymetallic glasses\" (i.e. the glasses having high DSmix) actually\nconstitute glasses with low excess entropy DS. We predict that such glasses\nshould have reduced relaxation ability. We also found that the excess enthalpy\nDH of glass linearly increases with its excess entropy DS, in line with a\ngeneral thermodynamic estimate.","PeriodicalId":501066,"journal":{"name":"arXiv - PHYS - Disordered Systems and Neural Networks","volume":"36 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"High entropy metallic glasses, what does it mean?\",\"authors\":\"G. V. Afonin, J. C. Qiao, A. S. Makarov, R. A. Konchakov, E. V. Goncharova, N. P. Kobelev, V. A. Khonik\",\"doi\":\"arxiv-2403.20115\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We performed calorimetric measurements on 30 bulk metallic glasses differing\\nwith their mixing entropies DSmix. On this basis, the excess entropies DS and\\nexcess enthalpies DH of glasses with respect to their maternal crystalline\\nstates are calculated. It is found that the excess entropy DS on the average\\ndecreases with increasing mixing entropy DSmix. This means that so-called\\n\\\"high-entropymetallic glasses\\\" (i.e. the glasses having high DSmix) actually\\nconstitute glasses with low excess entropy DS. We predict that such glasses\\nshould have reduced relaxation ability. We also found that the excess enthalpy\\nDH of glass linearly increases with its excess entropy DS, in line with a\\ngeneral thermodynamic estimate.\",\"PeriodicalId\":501066,\"journal\":{\"name\":\"arXiv - PHYS - Disordered Systems and Neural Networks\",\"volume\":\"36 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-03-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - Disordered Systems and Neural Networks\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2403.20115\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Disordered Systems and Neural Networks","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2403.20115","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
We performed calorimetric measurements on 30 bulk metallic glasses differing
with their mixing entropies DSmix. On this basis, the excess entropies DS and
excess enthalpies DH of glasses with respect to their maternal crystalline
states are calculated. It is found that the excess entropy DS on the average
decreases with increasing mixing entropy DSmix. This means that so-called
"high-entropymetallic glasses" (i.e. the glasses having high DSmix) actually
constitute glasses with low excess entropy DS. We predict that such glasses
should have reduced relaxation ability. We also found that the excess enthalpy
DH of glass linearly increases with its excess entropy DS, in line with a
general thermodynamic estimate.