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Role of cohesive energy on the interparticle coalescence behavior of dispersed nanoparticles subjected to energetic ion irradiation

机译:内聚能对高能离子辐照下分散纳米粒子的粒子间聚结行为的影响

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摘要

The present work reports on the conditions of nanoparticle growth and splitting under energetic ion irradiation. Cohesive energy that determines the thermal stability of a given nanoparticle system was calculated by extending surface area difference (SAD) and liquid drop model (LDM). Based on the size-dependent cohesive energy calculations, the interparticle coalescence mechanism is discussed for a ZnS-based nanoparticle system with special reference to a variety of matrices. The interparticle separation is found to play key role in particle-particle coalescence leading to nanoparticle growth or partial evaporation that results in splitting.
机译:本工作报告了在高能离子辐照下纳米粒子生长和分裂的条件。通过扩展表面积差(SAD)和液滴模型(LDM)计算确定给定纳米粒子系统热稳定性的内聚能。基于尺寸相关的内聚能计算,讨论了基于ZnS的纳米粒子系统的粒子间结合机理,并特别参考了各种基质。发现颗粒间的分离在颗粒-颗粒聚结中起关键作用,所述颗粒-颗粒聚结导致纳米颗粒生长或部分蒸发而导致分裂。

著录项

  • 来源
    《Journal of Materials Research》 |2010年第5期|p.814-820|共7页
  • 作者单位

    Nanoscience Laboratory, Department of Physics, Tezpur University, PO Napaam, Assam 784028, India;

    Nanoscience Laboratory, Department of Physics, Tezpur University, PO Napaam, Assam 784028, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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