Analysis of Carbon Nanotube Arrays for Their Potential Use as Adhesives Under Harsh Conditions as in Space Technology

Site-Specific Controlled Growth of Coiled Lambda-Shaped Carbon Nanofibers for Potential Application in Catalyst Support and Nanoelectronics

“…The critical volume of NiCl 2 *6H 2 O to grow single lambda-shaped CNFs was determined in our previous study to 0.033 μm 3 (Figure S1). Excessively high temperatures and humidities during the preparation process of the sample might lead to oxidization of the NiCl 2 *6H 2 O catalysts preventing CNF growth. , Therefore, the samples were prepared at lab temperatures below 23 °C and in relative humidities below 50%. Additionally, the samples were dried for more than 24 h before use, to reduce residual humidity to a minimum.…”

“…Carbon nanotubes and nanofibers can be grown in different types and shapes. − Branched carbon nanotubes (CNTs) (i.e., structures such as Y-shapes) are of high interest because of their potential use in the field of nanoelectrical devices. − Additionally, Y-shaped CNTs or carbon nanofibers (CNFs) can be used for mimicking hierarchical nanostructures found in nature, such as the nanostructures on the toes of Geckos, − enabling their climbing ability. CNTs and CNFs without branches are still used for mimicking the nanostructures of geckos for their use as dry adhesives, − but branched CNFs could potentially mimick structures more closely. Finally, the use of CNFs as catalyst support has gathered high interest for improvement of catalytic activity. − Several approaches were presented to fabricate branched CNTs or CNFs. ,,,,− Another peculiar subset of carbon structures are wound-up CNFs/CNTs.…”

Electrothermal Dry Adhesives with High Adhesion Under Low Temperatures Based on Tunable Stiffness

“…[21,22] Various dry adhesive devices and systems have been proposed to improve the adhesion of dry adhesives in extreme environments (such as low pressures, high temperatures, or strong radiation) and expand the applications of bioinspired dry adhesives to aerospace, nuclear, or space areas. These dry adhesive devices or systems include wedged or microfibrillar dry adhesives with switchable adhesion used in vacuum, [8,23] polymer-based or carbon fiber-based dry adhesives suitable for high-radiation environments, [24][25][26] dry adhesive-based robotic grippers capable of grasping and manipulating uncooperative objects in microgravity, [27,28] and nanocomposite dry adhesives with excellent high-temperature adhesion performance and thermal stability. [29] However, achieving strong reversible adhesion at low temperatures is challenging.…”

Fonksiyonelleştirilmiş bor nanopartiküllerinin yapıştırıcıyla birleştirilmiş tek tesirli kompozit bağlantılar üzerinde etkisi

“…gibi yöntemlere ek olarak, son yıllarda yapıştırma bağlantıları yaygın bir şekilde kullanılmaya başlanmıştır. Yapıştırma bağlantıları uzay, havacılık ve otomotiv gibi sektörlerde, daha hafif ve dayanıklı sistemleri oluşturmayı hedeflemektedir [1,2]. Bu amaçla, yapıştırma bağlantılarının mekanik özelliklerini ve sürdürülebilirliğini iyileştirmek amacıyla araştırmacılar tarafından birçok yöntem ortaya koyulmuştur.…”