{"title":"高温合成 MgB2 复合物过程中形成的耗散结构形态学","authors":"V. O. Esin","doi":"10.1134/s0031918x23602779","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The paper discusses the interaction of components during high-temperature annealing of compressed magnesium and boron powders in the production technology of the superconducting compound MgB<sub>2</sub>, based on the results presented in previous works that utilized standard synthesis technology and hot isostatic pressing technology. The study investigates the impact of crystal growth kinetics and diffusion of the components at the phase interface on the morphology of dissipative structures formed during phase transformation. A computer model of binary alloy crystallization was used to analyze the conditions and formation mechanism of dendrite-like structures that arise during the crystallization of MgB<sub>2</sub> from the melt of magnesium (Mg–% B).</p>","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"35 1","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Morphology of Dissipative Structures Formed during the High-Temperature Synthesis of MgB2 Compound\",\"authors\":\"V. O. Esin\",\"doi\":\"10.1134/s0031918x23602779\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3 data-test=\\\"abstract-sub-heading\\\">Abstract</h3><p>The paper discusses the interaction of components during high-temperature annealing of compressed magnesium and boron powders in the production technology of the superconducting compound MgB<sub>2</sub>, based on the results presented in previous works that utilized standard synthesis technology and hot isostatic pressing technology. The study investigates the impact of crystal growth kinetics and diffusion of the components at the phase interface on the morphology of dissipative structures formed during phase transformation. A computer model of binary alloy crystallization was used to analyze the conditions and formation mechanism of dendrite-like structures that arise during the crystallization of MgB<sub>2</sub> from the melt of magnesium (Mg–% B).</p>\",\"PeriodicalId\":20180,\"journal\":{\"name\":\"Physics of Metals and Metallography\",\"volume\":\"35 1\",\"pages\":\"\"},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2024-05-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physics of Metals and Metallography\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1134/s0031918x23602779\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of Metals and Metallography","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1134/s0031918x23602779","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Morphology of Dissipative Structures Formed during the High-Temperature Synthesis of MgB2 Compound
Abstract
The paper discusses the interaction of components during high-temperature annealing of compressed magnesium and boron powders in the production technology of the superconducting compound MgB2, based on the results presented in previous works that utilized standard synthesis technology and hot isostatic pressing technology. The study investigates the impact of crystal growth kinetics and diffusion of the components at the phase interface on the morphology of dissipative structures formed during phase transformation. A computer model of binary alloy crystallization was used to analyze the conditions and formation mechanism of dendrite-like structures that arise during the crystallization of MgB2 from the melt of magnesium (Mg–% B).
期刊介绍：
The Physics of Metals and Metallography (Fizika metallov i metallovedenie) was founded in 1955 by the USSR Academy of Sciences. Its scientific profile involves the theory of metals and metal alloys, their electrical and magnetic properties, as well as their structure, phase transformations, and principal mechanical properties. The journal also publishes scientific reviews and papers written by experts involved in fundamental, application, and technological studies. The annual volume of publications amounts to some 250 papers submitted from 100 leading national scientific institutions.
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