V. A. Shcherbakov, A. N. Gryadunov, I. E. Semenchuk, A. E. Sytschev, M. I. Alymov
{"title":"高压电热爆炸法制备超高温Ta4HfC5-HfB2复合材料","authors":"V. A. Shcherbakov, A. N. Gryadunov, I. E. Semenchuk, A. E. Sytschev, M. I. Alymov","doi":"10.3103/S1061386222020091","DOIUrl":null,"url":null,"abstract":"<p>Ultra-high-temperature Ta<sub>4</sub>HfC<sub>5</sub>–HfB<sub>2</sub> composites were prepared by electrothermal explosion (ETE) under pressure in a one-stage process, with special emphasis on the influence of high-energy ball milling (HEBM) of starting Ta–Hf–C–B powder mixtures. Synthesized Ta<sub>4</sub>HfC<sub>5</sub>–HfB<sub>2</sub> composites had a grain size smaller than 0.2 μm and a porosity of 10–12%. A synthesized composite has high temperature resistance at heating in the flame of an oxygen-acetylene burner.</p>","PeriodicalId":595,"journal":{"name":"International Journal of Self-Propagating High-Temperature Synthesis","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2022-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis of Ultra-High-Temperature Ta4HfC5–HfB2 Composites by Electro-thermal Explosion under Pressure\",\"authors\":\"V. A. Shcherbakov, A. N. Gryadunov, I. E. Semenchuk, A. E. Sytschev, M. I. Alymov\",\"doi\":\"10.3103/S1061386222020091\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Ultra-high-temperature Ta<sub>4</sub>HfC<sub>5</sub>–HfB<sub>2</sub> composites were prepared by electrothermal explosion (ETE) under pressure in a one-stage process, with special emphasis on the influence of high-energy ball milling (HEBM) of starting Ta–Hf–C–B powder mixtures. Synthesized Ta<sub>4</sub>HfC<sub>5</sub>–HfB<sub>2</sub> composites had a grain size smaller than 0.2 μm and a porosity of 10–12%. A synthesized composite has high temperature resistance at heating in the flame of an oxygen-acetylene burner.</p>\",\"PeriodicalId\":595,\"journal\":{\"name\":\"International Journal of Self-Propagating High-Temperature Synthesis\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2022-06-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Self-Propagating High-Temperature Synthesis\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.3103/S1061386222020091\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Self-Propagating High-Temperature Synthesis","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.3103/S1061386222020091","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Synthesis of Ultra-High-Temperature Ta4HfC5–HfB2 Composites by Electro-thermal Explosion under Pressure
Ultra-high-temperature Ta4HfC5–HfB2 composites were prepared by electrothermal explosion (ETE) under pressure in a one-stage process, with special emphasis on the influence of high-energy ball milling (HEBM) of starting Ta–Hf–C–B powder mixtures. Synthesized Ta4HfC5–HfB2 composites had a grain size smaller than 0.2 μm and a porosity of 10–12%. A synthesized composite has high temperature resistance at heating in the flame of an oxygen-acetylene burner.
期刊介绍:
International Journal of Self-Propagating High-Temperature Synthesis is an international journal covering a wide range of topics concerned with self-propagating high-temperature synthesis (SHS), the process for the production of advanced materials based on solid-state combustion utilizing internally generated chemical energy. Subjects range from the fundamentals of SHS processes, chemistry and technology of SHS products and advanced materials to problems concerned with related fields, such as the kinetics and thermodynamics of high-temperature chemical reactions, combustion theory, macroscopic kinetics of nonisothermic processes, etc. The journal is intended to provide a wide-ranging exchange of research results and a better understanding of developmental and innovative trends in SHS science and applications.