{"title":"Se78-xTe20Sn2Inx (x = 0,2,4,6)硫系玻璃(ChGs)结晶机理的反应动力学研究:组分效应的见解","authors":"Kaushal Kumar Sarswat, Sangeeta Singh, Neeraj Mehta","doi":"10.1007/s13538-025-01788-9","DOIUrl":null,"url":null,"abstract":"<div><p>This study investigates the crystallization kinetics of Se<sub>78−x</sub>Te<sub>20</sub>Sn<sub>2</sub>In<sub>x</sub> (<i>x</i> = 0, 2, 4, 6) chalcogenide glasses (ChGs) under non-isothermal conditions to evaluate the effects of indium incorporation. Differential scanning calorimetry (DSC) was performed at 5–20 K/min heating rates. Kinetic parameters were extracted using iso-conversional methods, including Kissinger–Akahira–Sunose (KAS) and Vyazovkin–Horner–Rogers (VHR) approaches. Results revealed that In doping significantly alters thermal stability and crystallization dynamics. STSI-1 (<i>x</i> = 2) exhibited the highest initial activation energy (230.0 kJ/mol), which decreased by 48.29%, indicating a marked reduction in crystallization resistance. In contrast, the undoped sample (STS) showed only a 20.3% drop. The Avrami index (<i>n</i>) and enthalpy of crystallization (<i>ΔH</i>) were also highest in STSI-1, suggesting altered nucleation-growth mechanisms and higher energy demand. In-doped samples showed lower crystallization temperatures (<i>T</i><sub><i>c</i></sub>), implying enhanced crystallization efficiency. A correlation between ln <i>K</i><sub><i>0</i></sub> and <i>E</i><sub><i>a</i></sub> supported the Meyer-Neldel rule (MNR) and iso-kinetic relationship (IKR), confirming consistent kinetic behavior. These findings highlight the critical role of composition in tuning the crystallization behavior of STSI glasses for potential phase-change and thermal management applications.</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":"55 4","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Investigating Reaction Kinetics of Crystallization Mechanism in Se78-xTe20Sn2Inx (x = 0, 2, 4, 6) Chalcogenide Glasses (ChGs): Insights into Compositional Effects\",\"authors\":\"Kaushal Kumar Sarswat, Sangeeta Singh, Neeraj Mehta\",\"doi\":\"10.1007/s13538-025-01788-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study investigates the crystallization kinetics of Se<sub>78−x</sub>Te<sub>20</sub>Sn<sub>2</sub>In<sub>x</sub> (<i>x</i> = 0, 2, 4, 6) chalcogenide glasses (ChGs) under non-isothermal conditions to evaluate the effects of indium incorporation. Differential scanning calorimetry (DSC) was performed at 5–20 K/min heating rates. Kinetic parameters were extracted using iso-conversional methods, including Kissinger–Akahira–Sunose (KAS) and Vyazovkin–Horner–Rogers (VHR) approaches. Results revealed that In doping significantly alters thermal stability and crystallization dynamics. STSI-1 (<i>x</i> = 2) exhibited the highest initial activation energy (230.0 kJ/mol), which decreased by 48.29%, indicating a marked reduction in crystallization resistance. In contrast, the undoped sample (STS) showed only a 20.3% drop. The Avrami index (<i>n</i>) and enthalpy of crystallization (<i>ΔH</i>) were also highest in STSI-1, suggesting altered nucleation-growth mechanisms and higher energy demand. In-doped samples showed lower crystallization temperatures (<i>T</i><sub><i>c</i></sub>), implying enhanced crystallization efficiency. A correlation between ln <i>K</i><sub><i>0</i></sub> and <i>E</i><sub><i>a</i></sub> supported the Meyer-Neldel rule (MNR) and iso-kinetic relationship (IKR), confirming consistent kinetic behavior. These findings highlight the critical role of composition in tuning the crystallization behavior of STSI glasses for potential phase-change and thermal management applications.</p></div>\",\"PeriodicalId\":499,\"journal\":{\"name\":\"Brazilian Journal of Physics\",\"volume\":\"55 4\",\"pages\":\"\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2025-05-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Brazilian Journal of Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s13538-025-01788-9\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Brazilian Journal of Physics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s13538-025-01788-9","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
Investigating Reaction Kinetics of Crystallization Mechanism in Se78-xTe20Sn2Inx (x = 0, 2, 4, 6) Chalcogenide Glasses (ChGs): Insights into Compositional Effects
This study investigates the crystallization kinetics of Se78−xTe20Sn2Inx (x = 0, 2, 4, 6) chalcogenide glasses (ChGs) under non-isothermal conditions to evaluate the effects of indium incorporation. Differential scanning calorimetry (DSC) was performed at 5–20 K/min heating rates. Kinetic parameters were extracted using iso-conversional methods, including Kissinger–Akahira–Sunose (KAS) and Vyazovkin–Horner–Rogers (VHR) approaches. Results revealed that In doping significantly alters thermal stability and crystallization dynamics. STSI-1 (x = 2) exhibited the highest initial activation energy (230.0 kJ/mol), which decreased by 48.29%, indicating a marked reduction in crystallization resistance. In contrast, the undoped sample (STS) showed only a 20.3% drop. The Avrami index (n) and enthalpy of crystallization (ΔH) were also highest in STSI-1, suggesting altered nucleation-growth mechanisms and higher energy demand. In-doped samples showed lower crystallization temperatures (Tc), implying enhanced crystallization efficiency. A correlation between ln K0 and Ea supported the Meyer-Neldel rule (MNR) and iso-kinetic relationship (IKR), confirming consistent kinetic behavior. These findings highlight the critical role of composition in tuning the crystallization behavior of STSI glasses for potential phase-change and thermal management applications.
期刊介绍:
The Brazilian Journal of Physics is a peer-reviewed international journal published by the Brazilian Physical Society (SBF). The journal publishes new and original research results from all areas of physics, obtained in Brazil and from anywhere else in the world. Contents include theoretical, practical and experimental papers as well as high-quality review papers. Submissions should follow the generally accepted structure for journal articles with basic elements: title, abstract, introduction, results, conclusions, and references.