A tunable three-dimensional thermal cloak based on multilayer transparent conductive oxides
A transparent conductive, oxide technology, applied in the direction of protective clothing, outerwear, clothing features, etc., can solve the problems of not being able to open, thermal stealth function does not have tunability, etc., to save energy, prolong camouflage time, reduce complexity and cost effect
Active Publication Date: 2018-12-21
DALIAN UNIV OF TECH
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Problems solved by technology
[0006] The technical problem to be solved by the present invention is: to overcome the shortcomings that most of the existing thermal stealth cloaks are based on two-dimensional planar structures, and the thermal stealth function of the thermal stealth cloaks does not have tunability (that is, the thermal stealth function cannot be turned on / off), and the use of transparent Conductive oxide, a common material, provides a new technology to realize an adjustable (open / close) three-dimensional thermal invisibility cloak, which enables the system to have simple structure, fast speed, easy operation, low energy consumption, strong real-time performance and low implementation cost. inferior merit
Method used
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Embodiment 1
[0030] First, an internal support shell 5 is formed on the substrate 1 using a material growth process, as shown in Figure 2(a);
[0031] Then, through the material growth process and the mask process, the designed transparent conductive oxide ring layer is superimposed on the outer surface of the substrate 1 and the inner support shell 5 layer by layer from bottom to top to realize the surface coverage of the N layer of transparent conductive oxide The ring layer 2, as shown in Figure 2(b). Among them, the design of the transparent conductive oxide surface ring layer and the internal support shell can adopt algorithms such as finite time domain difference method and finite element method. The thin metal patch 3 is processed between the inner ring wall of the N-layer transparent conductive oxide surface covering ring layer 2 and the outer wall of the inner support shell 5 through a coating process.
[0032] The internal support shell corresponds to each metal thin-layer patch 3, a...
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The present invention provides a controllable three-dimensional thermal invisible cloak based on multiple layers of transparent conducting oxide. The cloak is achieved by a surface coating casing layer formed by the transparent conducting oxide. The surface covering casing layer comprises multiple transparent conducting oxide loop layers in an overlaying manner from bottom to top. By controlling the free electron density of transparent conducting oxide in different loop layers, each layer is enabled to correspond to different thermal conductivity coefficients, the three-dimensional thermal conductivity distribution required by thermal invisibility is obtained, a thermal flow bypasses a cloak area, and then a temperature field and isotherms recover to the original distribution, so that a thermal invisibility function is achieved. At the same time, by controlling the free electron density of transparent conducting oxide in each loop layer, the real-time on / off performance of the thermal invisible cloak is achieved, and a shortcoming that a thermal invisible cloak in prior art can not be on / off in a cycling manner is overcome.
Description
Technical field [0001] The invention relates to a method and a device for realizing a controllable three-dimensional thermal stealth cloak based on a multilayer transparent conductive oxide, which can be applied to the field of heat flow control. Background technique [0002] In 2006, Document 1: "JBPendry et al,SCIENCE, 2006(312):1780" first proposed the use of anisotropic medium to control the propagation direction of light waves and realize the concept of optical invisibility cloak, which attracted widespread attention and became the field of optics Research hotspots. At the same time, as an extension of the application of optical cloaks, that is, manipulating the direction of heat flow through artificial structures to achieve thermal stealth has quickly become a hot issue in the field of thermodynamics. In 2013, Document 2: "R. Schittny et al, Phys. Rev. Lett. 2013(110): 195901" used copper and polydimethylsiloxane to make a two-dimensional circular thermal cloak, and the ex...
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IPC IPC(8): A41D3/08A41D13/005
CPCA41D3/08A41D13/0051A41D2400/12
Inventor 曹暾
Owner DALIAN UNIV OF TECH