紧型计算机控制的双轴拉伸装置,用于对分层材料的低温运输测量
1Kotelnikov Institute of Radioengineering and Electronics of RAS, Mokhovaya 11, bld. 7, Moscow 125009, Russia and Physics Department, HSE University, 20 Myasnitskaya Ulitsa, Moscow 101000, Russia.
The Review of scientific instruments
|June 24, 2024
概括
一种新的双轴拉伸装置可以在不同温度下进行分层材料的运输研究. 它显示出强烈的,超过40%的交轴应变依赖性,影响材料特性,如电导率.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 实验物理实验物理学
背景情况:
- 分层材料的运输研究对于理解它们的电子性质至关重要.
- 在机械应力下对材料反应的表征需要专门的实验设置.
- 以前的方法可能缺乏复杂菌株分析所需的精度或多功能性.
研究的目的:
- 引入一种新的双轴拉伸装置,用于对分层材料进行精确的传输测量.
- 为了研究双轴张力下层叠材料中的合应变效应.
- 为了证明该设备在研究变形依赖性质方面的能力.
主要方法:
- 一个双轴拉伸装置安装在一个24针的零力连接器上.
- 样品集成到50毫米冷却室 (9-310 K) 内的聚胺十字形基板上.
- 四个计算机控制的步进电机,施加拉力高达30N.
主要成果:
- 计算机模拟关于拉伸应变的实验验证.
- 量化了强烈的横轴应变依赖度超过40%.
- 通过分析2H-NbS2在变形下的电导率来证明设备的实用性.
结论:
- 开发的双轴拉伸装置为分层材料研究提供了一个多功能平台.
- 观察到的强烈交叉轴应变依赖是层级材料行为的一个关键因素.
- 这项工作为进一步研究先进材料中的机械和电子合提供了基础.
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