Mn2O3/V2O5取代对硼钒酸钙锰玻璃化学耐久性、介电性能和电学性能的影响

IF 3.5 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Journal of Solid State Chemistry Pub Date : 2025-07-17 DOI:10.1016/j.jssc.2025.125527

Ayoub Kaaouass , Abdelkader Ben Ali , Fouad Alloun , Daoud Mezzane , Mohamed Saadi

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引用次数: 0

摘要

在本研究中，采用熔融淬火工艺制备了不同Mn2O3浓度的CaO-B2O3-V2O5-Mn2O3体系玻璃样品。这项工作的主要目的是研究这些玻璃材料的化学耐久性和介电性能，突出了V2O5/Mn2O3取代的影响。在去离子水、盐酸和氨水中的化学耐久性测试表明，用Mn2O3代替V2O5提高了化学耐久性。由于玻璃基体内部结构的变化，高浓度V2O5的存在大大改善了介电性能。CBVM1 （25% V2O5）和CBVM2 （20% V2O5）样品的介电异常归因于玻璃化转变。电导率测量表明所研究的玻璃具有半导体性质，而活化能值随着Mn2O3含量的增加而略有增加。电学结果表明，所研究的玻璃是具有电子和离子导电性的混合导体。

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Effect of Mn2O3/V2O5 substitution on the chemical durability, dielectric and electrical properties of calcium-manganese borovanadate glasses

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Effect of Mn2O3/V2O5 substitution on the chemical durability, dielectric and electrical properties of calcium-manganese borovanadate glasses

In this research study, glass samples belonging to the CaO–B₂O₃–V₂O₅–Mn₂O₃ system with different Mn₂O₃ concentrations were prepared using the melt-quenching process. The main aim of this work is to investigate the chemical durability and dielectric properties of these glassy materials, highlighting the influence of the V₂O₅/Mn₂O₃ substitution. Chemical durability tested in deionized water, hydrochloric acid and ammonia revealed that replacing V₂O₅ with Mn₂O₃ improves chemical durability. The presence of V₂O₅ in high concentrations considerably improves dielectric properties, as a result of structural changes within the glass matrix. CBVM1 (25 % V₂O₅) and CBVM2 (20 % V₂O₅) samples showed a dielectric anomaly attributed to the glass transition. Electrical conductivity measurements indicated the semiconducting nature of the glasses studied, while activation energy values showed a slight increase with increasing Mn₂O₃ content. The electrical results lead to conclude that the studied glasses are mixed conductors with both electronic and ionic conductivity.

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来源期刊

Journal of Solid State Chemistry 化学-无机化学与核化学

CiteScore

6.00

自引率

9.10%

发文量

848

审稿时长

25 days

期刊介绍： Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.