強い,軽い,多機能の炭素ナノチューブの繊維は,超高伝導性を有しています
Natnael Behabtu1, Colin C Young, Dmitri E Tsentalovich
1Department of Chemical and Biomolecular Engineering, Applied Physics Program, The Smalley Institute for Nanoscale Science and Technology, Rice University, Houston, TX 77005, USA.
まとめ
高性能炭素ナノチューブ (CNT) 繊維は強度と伝導性を組み合わせています. ウェットスピニングによるスケーラブルな生産は,電子と電力伝送における高度なアプリケーションを可能にします.
科学分野:
- マテリアルサイエンス 材料科学
- ナノテクノロジー ナノテクノロジー
- エンジニアリング エンジニアリング
背景:
- 炭素ナノチューブ (CNT) の現実世界の応用は,合成と処理の課題によって制限されています.
- 既存の材料には,高度な技術統合に必要な結合特性が欠けていることが多い.
研究 の 目的:
- 高性能で多機能の炭素ナノチューブ (CNT) 繊維を開発する.
- 確立された工業プロセスを用いて,CNT繊維のスケーラブルな生産を可能にします.
- 高価値アプリケーションにおけるこれらのCNT繊維の潜在能力を探求する.
主な方法:
- 大量生産されたCNTを繊維製造に使用した.
- 拡張可能な工業技術である高通量湿線工を採用した.
- 生成されたCNT繊維の組み合わせた機械的,熱的,電気的性質を特徴づけた.
主要な成果:
- 炭素繊維に匹敵する特定の強度,硬度,熱伝導性を有する多機能CNT繊維を成功裏に生産しました.
- 特定の電気伝導性を金属と同等に達成しました.
- これらの高度なCNT繊維のためのスケーラブルな製造プロセスを実証しました.
結論:
- 開発されたCNT繊維は,要求の高いアプリケーションに適した特性のユニークな組み合わせを提供します.
- スケール可能なウェットスピニングは,CNTの実験室から工業用途への移行を容易にする.
- これらの繊維は,航空宇宙電子,フィールドエミッション,コンシューマーエレクトロニクス,および長距離電力伝送のための大きな可能性を秘めています.
関連する概念動画
Network Covalent Solids
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
Types Of Superconductors
A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
Fiber Reinforced Concrete
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
Conductors and Insulators
Some materials may easily let electrical charges pass through them, while others obstruct their flow. The former are called conductors and the latter insulators. The atomic structures of materials determine whether they are conductors or insulators of electricity.
Most metals are conductors. Their atomic configuration is such that one or more electron(s) are loosely bound to the nucleus in each atom. Thus, a sea of mobile electrons are available in them, known as free electrons. Their easy...
Most metals are conductors. Their atomic configuration is such that one or more electron(s) are loosely bound to the nucleus in each atom. Thus, a sea of mobile electrons are available in them, known as free electrons. Their easy...
Superconductor
A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...


