Thermochemical Mechanism of Optimized Lanthanum Chromite Heaters for High-Pressure and High-Temperature Experiments | |
Tao Xia; Yifeng Han; Chuanhui Zhu; Zhongxiong Sun; Chongyang Yuan; Qi Cui; Jin-Guang Cheng; Wei Du![]() | |
2022 | |
Source Publication | ACS Applied Materials & Interfaces
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Volume | 14Issue:28Pages:32244–32252 |
Abstract | High-pressure heaters in large volume presses must reconcile potentially contradictory properties, and the whole high-pressure and high-temperature (HPHT) community has been engaged for years to seek a better heater. LaCrO3 (LCO)-based ceramic heaters have been widely applied in multianvil apparatus; however, their performance is far from satisfactory, motivating further research on the chemical optimization strategy and corresponding thermochemical mechanism. Here, we adopted a chemical-screening strategy and manufactured tubular heaters using the electrically, chemically, and mechanically optimized Sr–Cu codoped La0.9Sr0.1Cr0.8Cu0.2O3−δ (LSCCuO-9182). HPHT examinations of cylindrical LSCCuO-9182 heaters on Walker-type multianvil apparatuses demonstrated a small temperature gradient, robust thermochemical stability, and excellent compatibility with high-pressure assemblies below 2273 K and 10 GPa. Thermochemical mechanism analysis revealed that the temperature limitation of the LSCCuO-9182 heater was related to the autoredox process of the Cu dopant and Cr and the exchanging ionic migration of Cu and Mg between the LSCCuO-9182 heater and the MgO sleeve. Our combinatorial strategy coupled with thermochemical mechanism analysis makes the prioritization of contradictory objectives more rational, yields reliable LCO heaters, and sheds light on further improvement of the temperature limitation and thermochemical stability. |
Keyword | High-pressure And High-temperature Synthesis Lacro3 Ceramic Heater Thermochemical Mechanism Temperature Field High-pressure Cell Compatibility |
DOI | 10.1021/acsami.2c07639 |
URL | 查看原文 |
Indexed By | SCI |
Language | 英语 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.gyig.ac.cn/handle/42920512-1/13604 |
Collection | 矿床地球化学国家重点实验室 |
Affiliation | 1.Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China 2.Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China 3.State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, P. R. China 4.Key Laboratory of Design & Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China 5.State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China |
Recommended Citation GB/T 7714 | Tao Xia,Yifeng Han,Chuanhui Zhu,et al. Thermochemical Mechanism of Optimized Lanthanum Chromite Heaters for High-Pressure and High-Temperature Experiments[J]. ACS Applied Materials & Interfaces,2022,14(28):32244–32252. |
APA | Tao Xia.,Yifeng Han.,Chuanhui Zhu.,Zhongxiong Sun.,Chongyang Yuan.,...&Man-Rong Li.(2022).Thermochemical Mechanism of Optimized Lanthanum Chromite Heaters for High-Pressure and High-Temperature Experiments.ACS Applied Materials & Interfaces,14(28),32244–32252. |
MLA | Tao Xia,et al."Thermochemical Mechanism of Optimized Lanthanum Chromite Heaters for High-Pressure and High-Temperature Experiments".ACS Applied Materials & Interfaces 14.28(2022):32244–32252. |
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