碱性长石中的钠扩散：Al/Si有序性的影响
材料科学
2024-12-24 v2
摘要
使用放射性示踪技术并应用22Na放射性同位素，测量了Na在天然碱性长石（包括透长石、冰长石和正长石，具有不同的Na:K比）中的示踪扩散。沿垂直于(001)和(010)晶向在冰长石中的示踪扩散测量揭示了Na扩散的轻微（在2到3倍以内）各向异性，沿垂直于(001)方向扩散速率更快，而在正长石中这种差异不那么明显。专门针对正长石研究了Na扩散的各向异性，并确定了完整的扩散张量。讨论了温度和成分对天然碱性长石中扩散的影响，涉及杂质和本征缺陷。提出Al/Si有序状态对碱性长石中Na扩散速率有显著影响。
引用
@article{arxiv.2412.11635,
title = {Sodium diffusion in alkali feldspars: Towards the impact of Al/Si ordering},
author = {Olga Kulitckaya and Alexander Gorfer and Elena Petrishcheva and Bengü Tas and Vladislav Kulitckii and Gerhard Wilde and Rainer Abart and Sergiy V. Divinski},
journal= {arXiv preprint arXiv:2412.11635},
year = {2024}
}
备注
conflict of interests with co-authors. All written records can be received from the corresponding author