{"title":"淬火核对金属玻璃结晶动力学的影响","authors":"Ajay Gupta, M. Jayaraj, S. Lal, R. P. Verma","doi":"10.1088/0305-4608/18/10/007","DOIUrl":null,"url":null,"abstract":"The crystallisation behaviour of a-Fe78Si9B11C2 has been studied using differential scanning calorimetry, Mossbauer spectroscopy and length change measurement. The isothermal kinetics of crystallisation are followed by measuring the change in length of the specimen. Data have been analysed in terms of a theoretical model which takes into account the effect of crystal growth on pre-existing nuclei. Quenched-in nuclei are found to affect the kinetics of crystallisation significantly. A detailed analysis of the data yields activation energies for both nucleation and growth of crystallites, information that is normally obtainable only through TEM.","PeriodicalId":16828,"journal":{"name":"Journal of Physics F: Metal Physics","volume":"31 1","pages":"2159-2160"},"PeriodicalIF":0.0000,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"10","resultStr":"{\"title\":\"Effect of quenched-in nuclei on the crystallisation kinetics of metallic glasses\",\"authors\":\"Ajay Gupta, M. Jayaraj, S. Lal, R. P. Verma\",\"doi\":\"10.1088/0305-4608/18/10/007\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The crystallisation behaviour of a-Fe78Si9B11C2 has been studied using differential scanning calorimetry, Mossbauer spectroscopy and length change measurement. The isothermal kinetics of crystallisation are followed by measuring the change in length of the specimen. Data have been analysed in terms of a theoretical model which takes into account the effect of crystal growth on pre-existing nuclei. Quenched-in nuclei are found to affect the kinetics of crystallisation significantly. A detailed analysis of the data yields activation energies for both nucleation and growth of crystallites, information that is normally obtainable only through TEM.\",\"PeriodicalId\":16828,\"journal\":{\"name\":\"Journal of Physics F: Metal Physics\",\"volume\":\"31 1\",\"pages\":\"2159-2160\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1988-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"10\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Physics F: Metal Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1088/0305-4608/18/10/007\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Physics F: Metal Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1088/0305-4608/18/10/007","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Effect of quenched-in nuclei on the crystallisation kinetics of metallic glasses
The crystallisation behaviour of a-Fe78Si9B11C2 has been studied using differential scanning calorimetry, Mossbauer spectroscopy and length change measurement. The isothermal kinetics of crystallisation are followed by measuring the change in length of the specimen. Data have been analysed in terms of a theoretical model which takes into account the effect of crystal growth on pre-existing nuclei. Quenched-in nuclei are found to affect the kinetics of crystallisation significantly. A detailed analysis of the data yields activation energies for both nucleation and growth of crystallites, information that is normally obtainable only through TEM.
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