Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Network Covalent Solids02:18

Network Covalent Solids

12.9K
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...
12.9K
Types Of Superconductors01:28

Types Of Superconductors

1.7K
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...
1.7K
Abrasion Resistance of Concrete01:23

Abrasion Resistance of Concrete

833
Abrasion resistance is an essential characteristic of concrete that determines its durability and longevity under various wear conditions. Concrete surfaces are vulnerable to different types of abrasion. For instance, surfaces may wear down due to the constant movement of vehicles or be eroded by solids carried in water, as seen in concrete canal linings. Specific tests are conducted to measure the abrasion resistance of concrete.
One such test is the revolving disc test, where three plates...
833
Fiber Reinforced Concrete01:22

Fiber Reinforced Concrete

645
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...
645
Mechanical Characteristics of Steel01:18

Mechanical Characteristics of Steel

942
The mechanical characteristics of steel are assessed through various tests that evaluate its strength, toughness, and flexibility. These tests include tension, torsion, impact, bending, and hardness assessments, each providing crucial information about steel's suitability for specific applications.
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
942

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Resolving and Controlling Silicoaluminophosphate Zeolite Intergrowths and Mixtures.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Flexural phonon instability defines intrinsic van der Waals elastic limits in the interlayer direction.

Nature communications·2026
Same author

Valence-Shell Electrons and Ionic Radius as Descriptors for Multisite Doping of RuO<sub>2</sub> for Durable Zn-Air Batteries.

Journal of the American Chemical Society·2026
Same author

Rare-Earth Mediated Engineering in ZnSe@ZnS:Eu<sup>3</sup> <sup>+</sup> to Simultaneously Achieve Structural Modulation and Atomic Eu Doping Sites for X-Ray Imaging.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

A high-performance radiative cooling glass based on multi-band selective regulation for synergistic heat dissipation and resistance.

Materials horizons·2026
Same author

An Inorganic Fiber-Polymer Composite-Based Quasi-Solid Electrolyte for High-Performance Electrochromic Devices.

ACS nano·2026

関連する実験動画

Updated: May 5, 2026

Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures
09:23

Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures

Published on: July 2, 2012

20.6K

超耐久性のある超長炭素ナノチューブ

Yunxiang Bai1,2, Hongjie Yue1, Jin Wang2,3

  • 1Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.

Science (New York, N.Y.)
|August 29, 2020
PubMed
まとめ

炭素ナノチューブ (CNT) は,材料の長寿に不可欠な優れた耐疲労性を持っています. 破裂の時間は 温度と初期欠陥形成に 依存しています 新しい音響共鳴テストによって明らかになりました

さらに関連する動画

Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes
09:47

Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes

Published on: February 19, 2016

10.0K
Functionalization of Single-walled Carbon Nanotubes with Thermo-reversible Block Copolymers and Characterization by Small-angle Neutron Scattering
09:12

Functionalization of Single-walled Carbon Nanotubes with Thermo-reversible Block Copolymers and Characterization by Small-angle Neutron Scattering

Published on: June 1, 2016

9.4K

関連する実験動画

Last Updated: May 5, 2026

Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures
09:23

Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures

Published on: July 2, 2012

20.6K
Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes
09:47

Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes

Published on: February 19, 2016

10.0K
Functionalization of Single-walled Carbon Nanotubes with Thermo-reversible Block Copolymers and Characterization by Small-angle Neutron Scattering
09:12

Functionalization of Single-walled Carbon Nanotubes with Thermo-reversible Block Copolymers and Characterization by Small-angle Neutron Scattering

Published on: June 1, 2016

9.4K

科学分野:

  • 材料科学
  • ナノテクノロジー
  • 機械工学

背景:

  • 疲労耐性は,構造材料の使用寿命を決定する上で極めて重要です.
  • 炭素ナノチューブ (CNT) は非常に強度が高く,サイズが小さいため疲労を検査するのは困難です.
  • 既存の測定方法は,個々のCNTの疲労行動を評価するのに不十分です.

研究 の 目的:

  • 個々の炭素ナノチューブ (CNT) の疲労耐性を評価するための新しい試験システムを開発し,実装する.
  • 異なる条件下でのセンチメートルの長さの CNT の疲労行動を調査する.
  • CNTの疲労寿命と骨折メカニズムに影響を与える要因を理解する.

主な方法:

  • 非接触音響試験システムの開発
  • 単一のCNTの疲労行動を測定するためのシステムの適用.
  • 温度依存と骨折開始を含む疲労特性の分析.

主要な成果:

  • CNTは驚くべき疲労耐性を示しています.
  • CNTの疲労性能は温度によって大きく影響される.
  • CNTの疲労骨折までの時間は,主に最初の欠陥の開始によって決定されます.

結論:

  • 開発された非接触音響システムは,個々のCNTの効率的な疲労試験を可能にします.
  • CNTは優れた疲労耐性を有しており,これは構造用途での使用の重要な属性です.
  • 欠陥発生を理解することは,CNTの疲労寿命を予測し,改善するために不可欠です.