Jianjun Chen, Lihua Lv, Qingfeng Wang, Chaofan Yin, Junrui Yang, Xue Li, Wei Luo, Ming Liu, Yinggang Zhao, Dongmei Shi
{"title":"氢氧化物对水合羧酸镁浇注料和易性的影响","authors":"Jianjun Chen, Lihua Lv, Qingfeng Wang, Chaofan Yin, Junrui Yang, Xue Li, Wei Luo, Ming Liu, Yinggang Zhao, Dongmei Shi","doi":"10.1111/ijac.15073","DOIUrl":null,"url":null,"abstract":"<p>This study investigates the effect of Al(OH)<sub>3</sub>, Mg(OH)<sub>2</sub>, or Ca(OH)<sub>2</sub> on the performance of HMC-bonded castables (HMCC), aiming to synergistically improve the workability and medium-temperature mechanical properties of HMCC. The results indicate that Al(OH)<sub>3</sub> synergistically improves the medium-temperature mechanical properties, workability, and thermal shock resistance of HMCC. Specifically, Al(OH)<sub>3</sub> prolonged the setting time from 21 to 27 min, whereas Mg(OH)<sub>2</sub> and Ca(OH)<sub>2</sub> reduced it to 19 and 7 min, respectively, due to the low solubility of aluminum citrate formed by Al(OH)<sub>3</sub>, which inhibits HMCC ionization. Additionally, Al(OH)<sub>3</sub> increases the aspect ratio of hydration products, resulting in a 29.8% decrease in flowability compared with the control sample N. The addition of these compounds significantly improves medium-temperature mechanical properties, with Al(OH)<sub>3</sub> increasing the cold modulus of rupture from .17 to 1.74 MPa at 500°C and from 1.24 to 2.51 MPa at 800°C. Moreover, Al(OH)<sub>3</sub> improves the the residual strength ratio after thermal shock from 26.16% to 28.70%, unlike Ca(OH)<sub>2</sub>, which lowers it to 19.02%, by enhancing resistance to microcrack propagation.</p>","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The effect of hydroxides on the workability of the castables bonded with hydrated magnesium carboxylate\",\"authors\":\"Jianjun Chen, Lihua Lv, Qingfeng Wang, Chaofan Yin, Junrui Yang, Xue Li, Wei Luo, Ming Liu, Yinggang Zhao, Dongmei Shi\",\"doi\":\"10.1111/ijac.15073\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>This study investigates the effect of Al(OH)<sub>3</sub>, Mg(OH)<sub>2</sub>, or Ca(OH)<sub>2</sub> on the performance of HMC-bonded castables (HMCC), aiming to synergistically improve the workability and medium-temperature mechanical properties of HMCC. The results indicate that Al(OH)<sub>3</sub> synergistically improves the medium-temperature mechanical properties, workability, and thermal shock resistance of HMCC. Specifically, Al(OH)<sub>3</sub> prolonged the setting time from 21 to 27 min, whereas Mg(OH)<sub>2</sub> and Ca(OH)<sub>2</sub> reduced it to 19 and 7 min, respectively, due to the low solubility of aluminum citrate formed by Al(OH)<sub>3</sub>, which inhibits HMCC ionization. Additionally, Al(OH)<sub>3</sub> increases the aspect ratio of hydration products, resulting in a 29.8% decrease in flowability compared with the control sample N. The addition of these compounds significantly improves medium-temperature mechanical properties, with Al(OH)<sub>3</sub> increasing the cold modulus of rupture from .17 to 1.74 MPa at 500°C and from 1.24 to 2.51 MPa at 800°C. Moreover, Al(OH)<sub>3</sub> improves the the residual strength ratio after thermal shock from 26.16% to 28.70%, unlike Ca(OH)<sub>2</sub>, which lowers it to 19.02%, by enhancing resistance to microcrack propagation.</p>\",\"PeriodicalId\":13903,\"journal\":{\"name\":\"International Journal of Applied Ceramic Technology\",\"volume\":\"22 3\",\"pages\":\"\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2025-02-27\",\"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.15073\",\"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.15073","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}
The effect of hydroxides on the workability of the castables bonded with hydrated magnesium carboxylate
This study investigates the effect of Al(OH)3, Mg(OH)2, or Ca(OH)2 on the performance of HMC-bonded castables (HMCC), aiming to synergistically improve the workability and medium-temperature mechanical properties of HMCC. The results indicate that Al(OH)3 synergistically improves the medium-temperature mechanical properties, workability, and thermal shock resistance of HMCC. Specifically, Al(OH)3 prolonged the setting time from 21 to 27 min, whereas Mg(OH)2 and Ca(OH)2 reduced it to 19 and 7 min, respectively, due to the low solubility of aluminum citrate formed by Al(OH)3, which inhibits HMCC ionization. Additionally, Al(OH)3 increases the aspect ratio of hydration products, resulting in a 29.8% decrease in flowability compared with the control sample N. The addition of these compounds significantly improves medium-temperature mechanical properties, with Al(OH)3 increasing the cold modulus of rupture from .17 to 1.74 MPa at 500°C and from 1.24 to 2.51 MPa at 800°C. Moreover, Al(OH)3 improves the the residual strength ratio after thermal shock from 26.16% to 28.70%, unlike Ca(OH)2, which lowers it to 19.02%, by enhancing resistance to microcrack propagation.
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;
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
