Correlation between Nanostructural and Enhanced Electrical Conductivity of Annealed 30V2O5–20Bi2O3–50P2O5 Glass,Crystal Research and Technology

当前位置： X-MOL 学术 › Cryst. Res. Technol. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Correlation between Nanostructural and Enhanced Electrical Conductivity of Annealed 30V2O5–20Bi2O3–50P2O5 Glass
Crystal Research and Technology ( IF 1.5 ) Pub Date : 2020-08-09 , DOI: 10.1002/crat.202000128
Ahmed Hannora ₁ , Mohamed El-Desoky ₂

Affiliation

Structural and DC conductivity of annealed 30V₂O₅–20Bi₂O₃–50P₂O₅ traditional quenching melt glass is investigated. The as quenched with amorphous nature and crystallized formed phases of annealed samples are confirmed by X‐ray diffraction and differential scanning calorimeter (DSC) techniques. The average crystallite size of the present samples after crystallization at different temperatures and times is estimated to be about 47–74.9 nm. DSC analyses of the glasses indicate a prominent glass transition temperature at 669.9 K. Monoclinic bismuth phosphate phase is formed after annealing at 723 K for 2 h and completely disappeared at 923 K with the formation of orthorhombic vanadium phosphorus oxide and new bismuth phosphate monoclinic phase. The conductivity is discussed in conformity with Mott's theory. The crystallinity development reduces the grain boundaries which leads to the conductivity improvement.

中文翻译：

30V2O5–20Bi2O3–50P2O5退火玻璃的纳米结构与增强电导率之间的相关性

退火后的30V ₂ O ₅ –20Bi ₂ O ₃ –50P ₂ O _5的结构和直流电导率研究了传统的淬火熔融玻璃。X射线衍射和差示扫描量热仪（DSC）技术证实了非晶态淬火的A和退火样品的结晶形成相。在不同温度和时间下结晶后，本样品的平均微晶尺寸估计约为47-74.9 nm。玻璃的DSC分析表明，玻璃化转变温度为669.9K。在723 K下退火2小时后，形成单斜晶磷酸铋相，并在923 K下完全消失，形成正交晶钒磷氧化物和新的磷酸铋单斜晶相。根据莫特理论讨论了电导率。结晶度的发展减小了晶界，这导致了电导率的提高。

更新日期：2020-10-07

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11