原位反应合成Mo-HfSi2-SiB4复合材料C/C - sic涂层

IF 0.4 Q4 METALLURGY & METALLURGICAL ENGINEERING

Russian Metallurgy (Metally) Pub Date : 2025-01-08 DOI:10.1134/S003602952470112X

A. N. Astapov, E. S. Belokopytova, A. I. Matulyak, V. A. Pogodin, I. V. Soldatenko

{"title":"原位反应合成Mo-HfSi2-SiB4复合材料C/C - sic涂层","authors":"A. N. Astapov, E. S. Belokopytova, A. I. Matulyak, V. A. Pogodin, I. V. Soldatenko","doi":"10.1134/S003602952470112X","DOIUrl":null,"url":null,"abstract":"The coating based on the MoSi2–MoB–HfB2 system on the substrate of the C/C–SiC composite is prepared by the in situ reaction synthesis using the slurry-roasting deposition of the powder composition at 1620°C under an argon expansion pressure of ~1 Pa. The reaction mechanisms in the Mo–HfSi2–SiB4–C system predetermining the synthesis of secondary phases MoSi2, MoB, HfB2, and HfC are proposed. Thermodynamic calculations of possible chemical reactions are performed. Probable causes for a high porosity of the prepared coating are analyzed.","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 3","pages":"681 - 689"},"PeriodicalIF":0.4000,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Preparation of the Coating on the C/C–SiC Composite from the Mo–HfSi2–SiB4 Composition by the In Situ Reaction Synthesis\",\"authors\":\"A. N. Astapov, E. S. Belokopytova, A. I. Matulyak, V. A. Pogodin, I. V. Soldatenko\",\"doi\":\"10.1134/S003602952470112X\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The coating based on the MoSi2–MoB–HfB2 system on the substrate of the C/C–SiC composite is prepared by the in situ reaction synthesis using the slurry-roasting deposition of the powder composition at 1620°C under an argon expansion pressure of ~1 Pa. The reaction mechanisms in the Mo–HfSi2–SiB4–C system predetermining the synthesis of secondary phases MoSi2, MoB, HfB2, and HfC are proposed. Thermodynamic calculations of possible chemical reactions are performed. Probable causes for a high porosity of the prepared coating are analyzed.\",\"PeriodicalId\":769,\"journal\":{\"name\":\"Russian Metallurgy (Metally)\",\"volume\":\"2024 3\",\"pages\":\"681 - 689\"},\"PeriodicalIF\":0.4000,\"publicationDate\":\"2025-01-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Russian Metallurgy (Metally)\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S003602952470112X\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Metallurgy (Metally)","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S003602952470112X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}

引用次数: 0

摘要

在1620℃下，在~1 Pa的氩气膨胀压力下，采用浆料焙烧沉积法制备了基于mosi2 - mobo - hfb2体系的C/C - sic复合材料衬底涂层。提出了Mo-HfSi2-SiB4-C体系中预先决定二次相MoSi2、MoB、HfB2和HfC合成的反应机理。对可能的化学反应进行热力学计算。分析了制备的涂层孔隙率高的可能原因。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Preparation of the Coating on the C/C–SiC Composite from the Mo–HfSi2–SiB4 Composition by the In Situ Reaction Synthesis

查看原文本刊更多论文

Preparation of the Coating on the C/C–SiC Composite from the Mo–HfSi2–SiB4 Composition by the In Situ Reaction Synthesis

The coating based on the MoSi₂–MoB–HfB₂ system on the substrate of the C/C–SiC composite is prepared by the in situ reaction synthesis using the slurry-roasting deposition of the powder composition at 1620°C under an argon expansion pressure of ~1 Pa. The reaction mechanisms in the Mo–HfSi₂–SiB₄–C system predetermining the synthesis of secondary phases MoSi₂, MoB, HfB₂, and HfC are proposed. Thermodynamic calculations of possible chemical reactions are performed. Probable causes for a high porosity of the prepared coating are analyzed.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Russian Metallurgy (Metally) METALLURGY & METALLURGICAL ENGINEERING-

CiteScore

0.70

自引率

25.00%

发文量

140

期刊介绍： Russian Metallurgy (Metally) publishes results of original experimental and theoretical research in the form of reviews and regular articles devoted to topical problems of metallurgy, physical metallurgy, and treatment of ferrous, nonferrous, rare, and other metals and alloys, intermetallic compounds, and metallic composite materials. The journal focuses on physicochemical properties of metallurgical materials (ores, slags, matters, and melts of metals and alloys); physicochemical processes (thermodynamics and kinetics of pyrometallurgical, hydrometallurgical, electrochemical, and other processes); theoretical metallurgy; metal forming; thermoplastic and thermochemical treatment; computation and experimental determination of phase diagrams and thermokinetic diagrams; mechanisms and kinetics of phase transitions in metallic materials; relations between the chemical composition, phase and structural states of materials and their physicochemical and service properties; interaction between metallic materials and external media; and effects of radiation on these materials.