摘要:
A method for forming a multilayer composite structure comprises providing a first sheet comprising a copper-comprising layer sandwiched by first and second graphene layers, wrapping the first sheet to form a first rod, and compacting the first rod to form a first multilayer composite structure.
摘要:
A method of forming an polymer composites is disclosed herein that includes infiltrating CNT sponges with a polymer or metal to form a composite. The method uses a relatively easy, scalable, and low-cost synthesis process that makes the composites attractive as TIM. CNTs in the sponge structure are covalently bonded, resulting in a low Young's modulus while at the same time maintaining a good thermal conductivity. This strategy makes it possible to obtain both high deformability and high thermal conductivity, which are difficult to have simultaneously due to their adverse correlation.
摘要:
The present invention relates in one aspect to a method of depositing a thin film on a substrate by chemical vapour deposition (CVD) from a radiation-sensitive precursor substance. The method comprises the steps of: (i) placing the substrate in a reaction chamber of a CVD system; (ii) heating the substrate, wherein heating includes the transmission of electromagnetic heating radiation from a controllable radiative heat source through the reaction chamber towards the substrate, wherein the radiative heat source is controlled to provide electromagnetic radiation as one or more heating pulses, each heating pulse followed by an idle period; (iii) during at least one of the idle periods, providing a pressure pulse of precursor substance inside the reaction chamber by feeding at least one precursor substance to the reaction chamber so as to establish a reaction partial pressure for thin film deposition from said pre-cursor substance onto the substrate and subsequently, after a dwell time, removing the precursor substance so as to reduce the partial pressure of the precursor substance in the reaction chamber to below a threshold; and (iv) repeating steps (ii) and (iii) until a desired thin film is formed. According to a further aspect, the invention relates to a chemical vapour deposition (CVD) system for depositing a thin film onto a substrate using precursor substances containing at least one radiation sensitive species.
摘要:
A method of protecting an article from a downhole environment comprises growing carbon nanotubes on a surface of a substrate via a chemical vapor deposition process; the carbon nanotubes having a first end formed on the surface of the substrate and a second end extending away from the substrate; filling the spaces among the carbon nanotubes with a metallic material or a polymeric material forming a coated article; and exposing the coated article to a downhole environment.
摘要:
Disclosed herein are methods for forming a graphene film on a substrate, the methods comprising depositing graphene on a surface of the substrate by a first vapor deposition step to form a discontinuous graphene crystal layer; depositing a graphene oxide layer on the discontinuous graphene crystal layer to form a composite layer; and depositing graphene on the composite layer by a second vapor deposition step, wherein the graphene oxide layer is substantially reduced to a graphene layer during the second vapor deposition step. Transparent coated substrates comprising such graphene films are also disclosed herein, wherein the graphene films have a resistance of less than about 10 K Ω/sq.
摘要:
The aim of the present invention lies in inexpensively providing a thin-film laminated film having excellent barrier properties. A further aim of the present invention lies in providing a method for producing a thin-film laminated film in which a plurality of thin films are coated on a plastic film by means of atmospheric-pressure plasma CVD which has low equipment costs and running costs, and also in providing a thin-film laminated film production apparatus which is able to operate continuously for a long period of time and can produce high-speed coating. A thin film according to the present invention includes a plastic film, a first silicon oxide-based thin film containing silicon oxide as the main component, and a first amorphous carbon-based thin film. The first amorphous carbon-based thin film is formed on the first silicon oxide-based thin film. The first silicon oxide-based thin film has pinholes with a diameter in the range of 10-200 nm.
摘要:
본 발명에서는 미세선이면서도 고강도이고 경량화되어 고전도 특성의 신뢰성이 향상된 그래핀 복합 금속와이어 및 그의 제조방법이 개시된다. 본 발명에 따른 표면에 그래핀층이 형성된 그래핀 복합 금속와이어 제조방법은 구리합금 와이어를 포함하는 금속와이어를 준비하는 단계; 금속와이어의 표면에 카본소스를 포함하는 카본소스층을 형성하는 단계; 및 마이크로웨이브 또는 백색광 중 적어도 어느 하나를 조사하여 금속와이어 표면에 그래핀층을 형성하는 단계를 포함한다.