Yuexing Chen , Jiaping Chen , Xiang Ji , Peipei Wang , Zhichao Shang , Chengshan Ji , Philipp V. Kiryukhantsev-Korneev , Evgeny A. Levashov , Xuanru Ren , Xueqin Kang , Baojing Zhang , Ping Zhang , Xiaohong Wang , Peizhong Feng , Junfei Peng , Junfeng Wang , Kun Song
{"title":"具有自修复多相玻璃网络的原位工程ZrB2-ZrSi2-MoSi2涂层具有优异的氧化保护作用 K","authors":"Yuexing Chen , Jiaping Chen , Xiang Ji , Peipei Wang , Zhichao Shang , Chengshan Ji , Philipp V. Kiryukhantsev-Korneev , Evgeny A. Levashov , Xuanru Ren , Xueqin Kang , Baojing Zhang , Ping Zhang , Xiaohong Wang , Peizhong Feng , Junfei Peng , Junfeng Wang , Kun Song","doi":"10.1016/j.corsci.2025.113355","DOIUrl":null,"url":null,"abstract":"<div><div>To address the protection failure of ZrB<sub>2</sub>-based coatings caused by structural loosening during oxidation, an in-situ alloying strategy with dual-silicide synergistic enhancement via one-step powder-source alloying is presented in this study. The approach successfully produced ZrB<sub>2</sub>-ZrSi<sub>2</sub>-MoSi<sub>2</sub> composite powders with precisely controllable composition, which were subsequently used to construct high-performance oxidation resistant coatings on graphite substrates. The optimized ZZM40 coating with 40 vol% MoSi<sub>2</sub> demonstrated a remarkable 98.21 % reduction in oxygen permeability and an 84.03 % reduction in carbon loss rate at 1973 K compared to the undoped coating, achieving a protection efficiency of 99.58 %. The performance enhancement is attributed to the in-situ formation of a self-generated glass phase during oxidation, which exhibits high fluidity and self-healing properties. Additionally, the in-situ precipitated nanoscale MoB phase effectively suppresses the volatilization of B<sub>2</sub>O<sub>3</sub> through a pinning effect, achieving a synergistic enhancement in thermal stability and oxygen blocking capabilities. Notably, excessive MoSi<sub>2</sub> doping at 50 vol% leads to detrimental effects. Intensified MoO<sub>3</sub> volatilization reduces the viscosity of the glass phase and triggers a chain reaction of defect propagation, consequently increasing the carbon loss rate by 34.43 % compared to ZZM40. The proposed powder-source in-situ alloying strategy validates the defect-repair mechanism driven by dual-silicide oxygen-blocking reinforcement, providing crucial theoretical foundations for the design and application of next-generation high-temperature thermal protection materials.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113355"},"PeriodicalIF":7.4000,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"In-situ engineered ZrB2-ZrSi2-MoSi2 coatings with self-healing multiphase glass networks for superior oxidation protection at 1973 K\",\"authors\":\"Yuexing Chen , Jiaping Chen , Xiang Ji , Peipei Wang , Zhichao Shang , Chengshan Ji , Philipp V. Kiryukhantsev-Korneev , Evgeny A. Levashov , Xuanru Ren , Xueqin Kang , Baojing Zhang , Ping Zhang , Xiaohong Wang , Peizhong Feng , Junfei Peng , Junfeng Wang , Kun Song\",\"doi\":\"10.1016/j.corsci.2025.113355\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>To address the protection failure of ZrB<sub>2</sub>-based coatings caused by structural loosening during oxidation, an in-situ alloying strategy with dual-silicide synergistic enhancement via one-step powder-source alloying is presented in this study. The approach successfully produced ZrB<sub>2</sub>-ZrSi<sub>2</sub>-MoSi<sub>2</sub> composite powders with precisely controllable composition, which were subsequently used to construct high-performance oxidation resistant coatings on graphite substrates. The optimized ZZM40 coating with 40 vol% MoSi<sub>2</sub> demonstrated a remarkable 98.21 % reduction in oxygen permeability and an 84.03 % reduction in carbon loss rate at 1973 K compared to the undoped coating, achieving a protection efficiency of 99.58 %. The performance enhancement is attributed to the in-situ formation of a self-generated glass phase during oxidation, which exhibits high fluidity and self-healing properties. Additionally, the in-situ precipitated nanoscale MoB phase effectively suppresses the volatilization of B<sub>2</sub>O<sub>3</sub> through a pinning effect, achieving a synergistic enhancement in thermal stability and oxygen blocking capabilities. Notably, excessive MoSi<sub>2</sub> doping at 50 vol% leads to detrimental effects. Intensified MoO<sub>3</sub> volatilization reduces the viscosity of the glass phase and triggers a chain reaction of defect propagation, consequently increasing the carbon loss rate by 34.43 % compared to ZZM40. The proposed powder-source in-situ alloying strategy validates the defect-repair mechanism driven by dual-silicide oxygen-blocking reinforcement, providing crucial theoretical foundations for the design and application of next-generation high-temperature thermal protection materials.</div></div>\",\"PeriodicalId\":290,\"journal\":{\"name\":\"Corrosion Science\",\"volume\":\"257 \",\"pages\":\"Article 113355\"},\"PeriodicalIF\":7.4000,\"publicationDate\":\"2025-09-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Corrosion Science\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0010938X25006833\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Corrosion Science","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0010938X25006833","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
In-situ engineered ZrB2-ZrSi2-MoSi2 coatings with self-healing multiphase glass networks for superior oxidation protection at 1973 K
To address the protection failure of ZrB2-based coatings caused by structural loosening during oxidation, an in-situ alloying strategy with dual-silicide synergistic enhancement via one-step powder-source alloying is presented in this study. The approach successfully produced ZrB2-ZrSi2-MoSi2 composite powders with precisely controllable composition, which were subsequently used to construct high-performance oxidation resistant coatings on graphite substrates. The optimized ZZM40 coating with 40 vol% MoSi2 demonstrated a remarkable 98.21 % reduction in oxygen permeability and an 84.03 % reduction in carbon loss rate at 1973 K compared to the undoped coating, achieving a protection efficiency of 99.58 %. The performance enhancement is attributed to the in-situ formation of a self-generated glass phase during oxidation, which exhibits high fluidity and self-healing properties. Additionally, the in-situ precipitated nanoscale MoB phase effectively suppresses the volatilization of B2O3 through a pinning effect, achieving a synergistic enhancement in thermal stability and oxygen blocking capabilities. Notably, excessive MoSi2 doping at 50 vol% leads to detrimental effects. Intensified MoO3 volatilization reduces the viscosity of the glass phase and triggers a chain reaction of defect propagation, consequently increasing the carbon loss rate by 34.43 % compared to ZZM40. The proposed powder-source in-situ alloying strategy validates the defect-repair mechanism driven by dual-silicide oxygen-blocking reinforcement, providing crucial theoretical foundations for the design and application of next-generation high-temperature thermal protection materials.
期刊介绍:
Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies.
This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.