• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Nanomaterials >Nano/Microscale Thermal Field Distribution: Conducting Thermal Decomposition of Pyrolytic-Type Polymer by Heated AFM Probes
【2h】

Nano/Microscale Thermal Field Distribution: Conducting Thermal Decomposition of Pyrolytic-Type Polymer by Heated AFM Probes

机译：纳米/微米级热场分布：热原子力显微镜探针对热解型聚合物的热分解

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In relevant investigations and applications of the heated atomic force microscope (AFM) probes, the determination of the actual thermal distribution between the probe and the materials under processing or testing is a core issue. Herein, the polyphthalaldehyde (PPA) film material and AFM imaging of the decomposition structures (pyrolytic region of PPA) were utilized to study the temperature distribution in the nano/microscale air gap between heated tips and materials. Different sizes of pyramid decomposition structures were formed on the surface of PPA film by the heated tip, which was hovering at the initial tip–sample contact with the preset temperature from 190 to 220 °C for a heating duration ranging from 0.3 to 120 s. According to the positions of the 188 °C isothermal surface in the steady-state probe temperature fields, precise 3D boundary conditions were obtained. We also established a simplified calculation model of the 3D steady-state thermal field based on the experimental results, and calculated the temperature distribution of the air gap under any preset tip temperature, which revealed the principle of horizontal (<700 nm) and vertical (<250 nm) heat transport. Based on our calculation, we fabricated the programmable nano-microscale pyramid structures on the PPA film, which may be a potential application in scanning thermal microscopy.
机译：在加热原子力显微镜（AFM）探针的相关研究和应用中，确定探针与正在处理或测试的材料之间的实际热分布是一个核心问题。本文中，利用聚苯二醛（PPA）薄膜材料和分解结构的AFM成像（PPA的热解区）来研究加热尖端和材料之间的纳米/微米级气隙中的温度分布。 PPA膜的表面通过加热的尖端形成了不同大小的金字塔分解结构，该尖端在初始的尖端与样品接触时徘徊，预设温度为190至220°C，加热时间为0.3至120 s。根据稳态探头温度场中188°C等温表面的位置，获得了精确的3D边界条件。我们还根据实验结果建立了3D稳态热场的简化计算模型，并计算了任何预设尖端温度下气隙的温度分布，这揭示了水平（<700 nm）和垂直（ <250 nm）的热传输。根据我们的计算，我们在PPA膜上制造了可编程的纳米微米级金字塔结构，这可能是扫描热显微镜中的潜在应用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号