Chenkai Wang, Zedong Chen, Wei Zhao, Yang Li, Wei Zhou
{"title":"1400°C 下 Lu4Hf3O12 陶瓷的钙铁铝硅（CFAS）腐蚀行为","authors":"Chenkai Wang, Zedong Chen, Wei Zhao, Yang Li, Wei Zhou","doi":"10.1111/ijac.14827","DOIUrl":null,"url":null,"abstract":"<p>In this work, the corrosion behavior of rare-earth Lu<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub> ceramic when exposed to a CaO-FeO<sub>1.5</sub>-AlO<sub>1.5</sub>-SiO<sub>2</sub> (CFAS) environment at a temperature of 1400°C was investigated, with a focus on exploring the associated phase transformation, microstructure evolution, and corrosion reaction mechanism. Results reveal that during the corrosion process, the CFAS melt infiltrates Lu<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub> particles through cracks, resulting in the formation of a continuous reaction layer. This reaction leads to the generation of several high-melting-point garnets, including HfO<sub>2</sub>, Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>, Ca<sub>3</sub>Fe<sub>2</sub>(SiO<sub>4</sub>)<sub>3</sub> (Ca-Fe garnet), and Ca<sub>3</sub>Al<sub>2</sub>Si<sub>3</sub>O<sub>12</sub> (Grossular). These garnets effectively fill the voids within the Lu<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub> ceramics, preventing further infiltration of the CFAS melts. As time progresses, the rate of the reaction gradually increases, while the rate of infiltration consistently decreases. Consequently, a relatively stable corrosion layer is achieved, effectively impeding further corrosion.</p>","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"21 6","pages":"4216-4227"},"PeriodicalIF":1.8000,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Calcium-ferrum-alumina-silicate (CFAS) corrosion behavior of Lu4Hf3O12 ceramics at 1400°C\",\"authors\":\"Chenkai Wang, Zedong Chen, Wei Zhao, Yang Li, Wei Zhou\",\"doi\":\"10.1111/ijac.14827\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>In this work, the corrosion behavior of rare-earth Lu<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub> ceramic when exposed to a CaO-FeO<sub>1.5</sub>-AlO<sub>1.5</sub>-SiO<sub>2</sub> (CFAS) environment at a temperature of 1400°C was investigated, with a focus on exploring the associated phase transformation, microstructure evolution, and corrosion reaction mechanism. Results reveal that during the corrosion process, the CFAS melt infiltrates Lu<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub> particles through cracks, resulting in the formation of a continuous reaction layer. This reaction leads to the generation of several high-melting-point garnets, including HfO<sub>2</sub>, Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>, Ca<sub>3</sub>Fe<sub>2</sub>(SiO<sub>4</sub>)<sub>3</sub> (Ca-Fe garnet), and Ca<sub>3</sub>Al<sub>2</sub>Si<sub>3</sub>O<sub>12</sub> (Grossular). These garnets effectively fill the voids within the Lu<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub> ceramics, preventing further infiltration of the CFAS melts. As time progresses, the rate of the reaction gradually increases, while the rate of infiltration consistently decreases. Consequently, a relatively stable corrosion layer is achieved, effectively impeding further corrosion.</p>\",\"PeriodicalId\":13903,\"journal\":{\"name\":\"International Journal of Applied Ceramic Technology\",\"volume\":\"21 6\",\"pages\":\"4216-4227\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2024-06-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Applied Ceramic Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1111/ijac.14827\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Applied Ceramic Technology","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/ijac.14827","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
Calcium-ferrum-alumina-silicate (CFAS) corrosion behavior of Lu4Hf3O12 ceramics at 1400°C
In this work, the corrosion behavior of rare-earth Lu4Hf3O12 ceramic when exposed to a CaO-FeO1.5-AlO1.5-SiO2 (CFAS) environment at a temperature of 1400°C was investigated, with a focus on exploring the associated phase transformation, microstructure evolution, and corrosion reaction mechanism. Results reveal that during the corrosion process, the CFAS melt infiltrates Lu4Hf3O12 particles through cracks, resulting in the formation of a continuous reaction layer. This reaction leads to the generation of several high-melting-point garnets, including HfO2, Lu3Al5O12, Ca3Fe2(SiO4)3 (Ca-Fe garnet), and Ca3Al2Si3O12 (Grossular). These garnets effectively fill the voids within the Lu4Hf3O12 ceramics, preventing further infiltration of the CFAS melts. As time progresses, the rate of the reaction gradually increases, while the rate of infiltration consistently decreases. Consequently, a relatively stable corrosion layer is achieved, effectively impeding further corrosion.
期刊介绍：
The International Journal of Applied Ceramic Technology publishes cutting edge applied research and development work focused on commercialization of engineered ceramics, products and processes. The publication also explores the barriers to commercialization, design and testing, environmental health issues, international standardization activities, databases, and cost models. Designed to get high quality information to end-users quickly, the peer process is led by an editorial board of experts from industry, government, and universities. Each issue focuses on a high-interest, high-impact topic plus includes a range of papers detailing applications of ceramics. Papers on all aspects of applied ceramics are welcome including those in the following areas:
Nanotechnology applications;
Ceramic Armor;
Ceramic and Technology for Energy Applications (e.g., Fuel Cells, Batteries, Solar, Thermoelectric, and HT Superconductors);
Ceramic Matrix Composites;
Functional Materials;
Thermal and Environmental Barrier Coatings;
Bioceramic Applications;
Green Manufacturing;
Ceramic Processing;
Glass Technology;
Fiber optics;
Ceramics in Environmental Applications;
Ceramics in Electronic, Photonic and Magnetic Applications;
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