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関連する概念動画

Electrostatic Boundary Conditions in Dielectrics01:27

Electrostatic Boundary Conditions in Dielectrics

1.9K
When an electric field passes from one homogeneous medium to another, crossing the boundary between the two mediums imparts a discontinuity in the electric field. This results in electrostatic boundary conditions that depend on the type of mediums the field propagates through.
Consider a case where both the mediums across a boundary are two different dielectric materials. Recall that the electric field and electric displacement are proportional and related through the material's permittivity....
1.9K
Polymers02:34

Polymers

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The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
41.4K
Conductors and Insulators01:19

Conductors and Insulators

10.9K
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...
10.9K
Insulation Coordination01:23

Insulation Coordination

577
Insulation coordination is the process of matching electric equipment's insulation strength with protective device characteristics to protect the equipment against expected overvoltages. This selection is based on engineering judgment and cost. Equipment can generally withstand short-duration high transient overvoltages, but repeated tests with identical waveforms can yield inconsistent results. As a result, standard impulse voltage waveforms are used for testing, defined by specific times...
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Capacitor With A Dielectric01:18

Capacitor With A Dielectric

5.0K
Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates parallel to each other without actual contact. Hence, a dielectric layer is commonly placed between the plates, which provides an easy solution for holding the plates together with a small gap and increases the capacitance of the capacitor.
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...
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Thermal Insulation in Masonry Walls01:22

Thermal Insulation in Masonry Walls

567
In hot, dry climates, the thermal mass of masonry walls can be beneficial, absorbing heat during the day and releasing it at night, thereby stabilizing indoor temperatures. However, in most other climates, additional insulation is necessary to enhance thermal resistance.
External insulation can be applied using an Exterior Insulation and Finish System (EIFS), which involves affixing panels of plastic foam to the wall and covering them with a polymeric stucco reinforced with glass fiber mesh....
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Updated: Feb 14, 2026

Application of a Coupling Agent to Improve the Dielectric Properties of Polymer-Based Nanocomposites
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切換可能な導電性および静電保護のための絶縁性を持つ可逆性介電ポリマー.

Huasong Xu1,2, Congzhen Xie3, Hui Chen4

  • 1State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Electronics and Information Engineering, Shenzhen University, Shenzhen, China.

Nature communications
|February 12, 2026
PubMed
まとめ

この研究では,断熱状態と導電状態の間で切り替わる適応的なフィールド格レーディング材料を導入しています. この技術革新により,静電放電電荷が急速に分散し,電子機器の信頼性が向上します.

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Optical Trap Loading of Dielectric Microparticles In Air
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Optical Trap Loading of Dielectric Microparticles In Air

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関連する実験動画

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Application of a Coupling Agent to Improve the Dielectric Properties of Polymer-Based Nanocomposites
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Photodynamic Therapy with Blended Conducting Polymer/Fullerene Nanoparticle Photosensitizers
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科学分野:

  • マテリアルサイエンス 材料科学
  • 電気工学 電気工学とは
  • ナノテクノロジー ナノテクノロジー

背景:

  • 先進的な電子機器は,電力密度と統合が増加したため,静電放電 (ESD) のリスクに直面しています.
  • 伝統的な包装材料は,長期にわたる電荷蓄積に苦しんでおり,デバイスの信頼性を脅かしています.

研究 の 目的:

  • ESDイベント中に電荷の急速な消去のための適応的なフィールド格レーディング材料を開発する.
  • 絶縁状態と導電状態の間で移行する材料を作成し,静電保護を強化します.

主な方法:

  • 電気回転を用いたシリコンカーバイド由来ナノファイバーマットを合成しました.
  • ナノファイバーマット内で"ステップ・バイ・ステップ"のダブル・ショットキー・バリアを設計した.
  • ナノファイバーマットとエポキシ基マトリックスを組み合わせた.

主要な成果:

  • 超低物質含有率 (0.3vol%) で効果的な電場分類を達成しました.
  • ナノファイバー含有物による断熱-伝導性トランジション電場の精密なカスタマイズが実証されました.
  • 断熱状態と導電状態の間の移行を可能にする適応性のある材料を製造した.

結論:

  • 開発された素材は,電子機器の静電保護のための新しいソリューションを提供します.
  • 発見は,さまざまな保温ポリマーと金属酸化物における静電保護戦略に重要な指針を提供します.
  • アダプティブフィールド格レーディング素材は,ESDに対する電子部品の信頼性を高めます.