电导率

Electrical conductivity and Young’s modulus of flexible nanocomposites made by metal-ion implantation of polydimethylsiloxane: The relationship between nanostructure and macroscopic properties

由 ty10086 提交于 周四, 08/26/2021 - 13:44
Abstract(#br)The mechanical and electrical properties of nanocomposites created by gold and titanium implantation into polydimethysiloxane (PDMS) are reported for doses from 10 15 to 5\u003cce:hsp sp=\"0.25\"/\u003e×\u003cce:hsp sp=\"0.25\"/\u003e10 16 \u003cce:hsp sp=\"0.25\"/\u003eat.\u003cce:hsp sp=\"0.25\"/\u003ecm −2 , and for ion energies of 2.5, 5 and 10\u003cce:hsp sp=\"0.25\"/\u003ekeV. Transmission electron microscopy (TEM) cross-section micrographs allowed detailed microstructural analysis of the implanted layers.

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聚二甲基硅氧烷PDMS先驱体的热处理：Ⅱ.碳基陶瓷纳米复合材料的热性能

由 ty10086 提交于 周四, 08/26/2021 - 13:11
摘要 有机硅聚合物基陶瓷( PDC )材料因其具有机械、化学、电学等多种性能而受到广泛的研究。PDC的热性能是目前研究最少的性能之一，是设计热能转换器所必需的。本文以市售的聚二甲基硅氧烷弹性体为起始聚合物前驱体。用X射线衍射分析了交联凝胶在1000℃以上惰性气氛中的热分解过程，得到了硅氧羰基SiOxCy。热裂解至1500℃时，凝胶仍保持复杂形状，但线性收缩率为25 % ~ 30 %。随着热处理温度的升高，游离碳基SiOx Cy残留物的热导率和热导率同时升高。1500℃热处理的样品室温热导率为2.24 Wm-1K-1，电导率为0.021 S cm-1。这些特性表明PDCs作为一种功能材料在热电器件中具有广阔的应用前景。

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Dual conductive network enabled superhydrophobic and high performance strain sensors with outstanding electro-thermal performance and extremely high gauge factors

由 ty10086 提交于 周四, 08/26/2021 - 12:47
Abstract(#br)Conductive nanofiber composites (CNCs) are promising as wearable strain sensors (WSSs) due to their unique porous structure and thus good breathability, flexibility, skin affinity, and so forth. It still remains a great challenge to develop flexible and stretchable CNCs for high performance WSSs that possess a high sensitivity, large working strain and can also be applied in various harsh conditions such as extremely cold and corrosive environment.

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