Scholarlink

Abstract <p>The properties and local structure of lithium-aluminum-germanium phosphate glasses doped with of CrO<sub>3</sub> and prepared via melt quenching have been studied. The temperatures of glass transition, the onset and peak of crystallization, as well as the thermal stability of the glasses have increased with an increase in the content of the dopant. No significant change in the type of structural groupings over the entire considered range of concentration has been observed, which correlates with the absence of anomalous changes in the concentration dependencies of characteristic temperatures and conductivity of the glasses. Based on the XPS results, it has been shown that chromium has the oxidation state of +3 and +6 in the glasses. The conductivity of the glasses has increased slightly, and in the case of partially crystallized samples with the introduced additive content exceeding 5 mol %, the conductivity has increased by 3 orders of magnitude, the conductivity activation energy being decreased, is due to the formation of highly conductive crystalline phases.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Crystallization and Electrical Conductivity of Glasses of the Li2O–Al2O3–GeO2–CrO3–P2O5 System

  • 期刊论文

  • 发表日期：

    2025年9月1日

查看全文
  • S. V. Pershina,
  • Yu. S. Gladkikh,
  • R. K. Abdurakhimova,
  • T. A. Kuznetsova,
  • A. A. Mazilova,
  • V. I. Pruakhina

摘要

Abstract

The properties and local structure of lithium-aluminum-germanium phosphate glasses doped with of CrO3 and prepared via melt quenching have been studied. The temperatures of glass transition, the onset and peak of crystallization, as well as the thermal stability of the glasses have increased with an increase in the content of the dopant. No significant change in the type of structural groupings over the entire considered range of concentration has been observed, which correlates with the absence of anomalous changes in the concentration dependencies of characteristic temperatures and conductivity of the glasses. Based on the XPS results, it has been shown that chromium has the oxidation state of +3 and +6 in the glasses. The conductivity of the glasses has increased slightly, and in the case of partially crystallized samples with the introduced additive content exceeding 5 mol %, the conductivity has increased by 3 orders of magnitude, the conductivity activation energy being decreased, is due to the formation of highly conductive crystalline phases.