Deterministic Manipulation of Heat Flow via Three-Dimensional-Printed Thermal Meta-Materials for Multiple Protection of Critical Components

Abstract

Heat dissipation is necessary for the safer operation of high-power electronic devices and high-capacity batteries. Thermal meta-materials can efficiently manipulate heat flow by molding natural materials into specific structures. In this study, we construct a three-dimensional-printed meta-material structure with efficient and deterministic heat conduction through combining the 2D boron nitride (BN) with nano-diamond (DM) bridging. A research of thermal conductivity and dielectric properties exhibits that the nanosized diamond-bridged and oriented 2D boron nitride endows efficient heat transfer and maintains low dielectric loss with low filler loading. The composites loaded with 19 wt% BN platelets and 1 wt% DM have the highest thermal conductivity of 3.687 W/(m·K) in the heat flow orientation, while the thermal conductivity is only 0.632 W/(m·K) in the vertical heading of heat flow. The thermal conductive networks with thermal meta-materials based on the structural characteristics have been designed to secure critical device components from the heat source and dissipate heat flow in a definite way. The infrared images show that the temperature difference of monitoring points in different directions on the BN-oriented composite substrate is 9 °C, which realizes the protection of the heat source and key components. This study shows the latent capacity of 3D-printed structured materials for critical device component protection and heat administration applications in electronic devices and electric equipment.

First‐principles studies on physical properties for new half‐metallic perovskites AFeO3 (A = Ca, Sr, Ba): Spintronics and energy harvesting applications

“…The materials with optical applications retain broad interest in optical communication windows, optical coatings, reflectors, mirrors, solar collectors and lasers as well [59, 60]. These properties have essential role for optoelectronic and photonic applications, that can be determined through calculations of the dielectric function and optical spectra, shedding light on the compound's potential in energy harvesting [61]. $$$$ \varepsilon \left(\omega \right)={\varepsilon}_1\left(\omega \right)+{i\varepsilon}_2\left(\omega \right).$$…”

“…One of the special properties of the thermoelectric material is its efficient transformation of thermal energy into electrical one because of this fascination these materials are achieving great exploration to get ultimate thermoelectric aspects. The thermoelectric materials retain numerous important applications like thermoelectric refrigeration and computer cooling, and small detector component [57][58][59][60][61][62]. This section is dedicated to calculate various thermoelectric attributes of CaFeO 3 , SrFeO 3 , and BaFeO 3 for temperature range upto 300-900 K as shown in Figure 8A-E.…”

Plain-Woven Areca Sheath Fiber-Reinforced Epoxy Composites: The Influence of the Fiber Fraction on Physical and Mechanical Features and Responses of the Tribo System and Machine Learning Modeling

“…The Taguchi technique proposes three layers of understanding of the design process. Level one is the system design, which looks into the basic factors that cause the desired output . The emphasized second level is the parameter design, which intends to minimize variation from the target by establishing very pertinent optimal parameters covering all the basic factors .…”

Full-life-cycle eco-friendly polymeric insulating materials: research progress and future prospects

“…According to Weibull distribution, the results suggest that the composites of i-Al 2 O 3 /EA exhibited better breakdown performance than s-Al 2 O 3 /EA. Yang et al [64] constructed an SLA 3D printed meta-material structure with efficient and deterministic heat conduction through combining the 2D boron nitride (BN) with nanodiamond (DM) bridging. The research of thermal conductivity and dielectric properties exhibit that the nanosized diamondbridged and oriented 2D BN endows efficient heat transfer, and maintains low dielectric loss with low filler loading.…”