Emerging trends and challenges in thermal interface materials: A comprehensive perspective from fundamentals to applications

Materials Science and Engineering R Reports, Год журнала: 2025, Номер 164, С. 100968 - 100968

Опубликована: Март 10, 2025

Язык: Английский

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Constructing the Snail Shell-Like Framework in Thermal Interface Materials for Enhanced Through-Plane Thermal Conductivity

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(36), С. 48386 - 48394

Опубликована: Авг. 29, 2024

Melioration of the through-plane thermal conductivity (TC) interface materials (TIMs) is a sore need for efficient heat dissipation to handle an overheating concern high-power-density electronics. Herein, we constructed snail shell-like conductive framework facilitate vertical conduction in TIMs. With inspiration from spirally growing calcium carbonate platelets shells, facile double-microrod-assisted curliness method was developed coil boron nitride nanosheet (BNNS)/aramid nanofiber (ANF) laminates where interconnected BNNSs lie along horizontal plane. Thus, alignment resultant TIM achieved, exhibiting TC enhancement ∼100% compared counterpart with randomly distributed at same BNNS addition (50 wt %). The Foygel's nonlinear model revealed that this unique reduced interfacial resistance by 4 orders magnitude. Our showed superior efficiency, leading temperature reduction 42.6 °C LED chip aforementioned counterpart. work paves valuable way fabricating high-performance TIMs ensure reliable operation electrical devices.

Язык: Английский

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Silicone Composites with Electrically Oriented Boron Nitride Platelets and Carbon Microfibers for Thermal Management of Electronics

Polymers, Год журнала: 2025, Номер 17(2), С. 204 - 204

Опубликована: Янв. 15, 2025

This study investigated silicone composites with distributed boron nitride platelets and carbon microfibers that are oriented electrically. The process involved homogenizing dispersing nano/microparticles in the liquid polymer, aligning particles DC AC electric fields, curing composite IR radiation to trap within chains. innovative concept utilized two fields align particles, improving even distribution of among BN Based on SEM images, chains uniformly surface sample, fully formed mature, but their architecture critically depends composition. physical electrical characteristics were extensively studied regard composition orientation particles. higher concentration platelets, greater enhancement dielectric permittivity, effect decreases gradually after reaching a 15%. impact incorporating into permittivity is clearly beneficial, especially when content surpasses 12%. Thermal conductivity showed significant improvement all samples aligned regardless For homogeneous materials, thermal significantly enhanced by inclusion microfibers, particularly exceeds biggest increase happened added at rate 2%, while surpassed 15.5%. greatly improved adding present, over When 15.5%, diminishes as fibers only partly vertically oriented, prioritizing vertical alignment. outcomes this results for compared prior findings literature, utilizing more straightforward approach processing polymer matrix In contrast current technologies, homologous materials dispersed presented technology reduces ingredient consumption 5–10 times due arrangement chains, which enhances heat transfer efficiency desired direction. present can be used variety industrial settings, accommodating different ingredients film thicknesses, customized various applications electronics management.

Язык: Английский

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A new thermally conductive MgO particles prepared using MgTiO3-La2O3-V2O5 additives and fabrication of gap filler with the particles

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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Flame-Retardant, Thermally Conductive, and Mechanically Strong Epoxy Composites with Phenylphosphonic Acid-Functionalized Boron Nitride Nanosheets

Опубликована: Янв. 1, 2025

Язык: Английский

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Bi‐Directional Assembly of Boron Nitride µ‐Platelets by Micro‐Molding for Advanced Thermal Interface Materials

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

Abstract With dramatically growing demand for highly complicated, high power‐consumed 3D stacked integrated circuit electronics, the advancement of effective thermal management has become a key technology to secure both performance and stability. To ensure better heat microelectronics, especially pursuing unconventional devices assembled on sheet paper or plastics, more feasible is inevitable. In this study, mechanically robust bi‐directionally conductive material are presented by micro‐molding with boron‐nitride (BN) microscale platelets (µ‐platelets) dispersed in polymeric matrix. Micro‐pattern‐induced bifurcation assembly orientation BN µ‐platelets bi‐directionality conduction characteristics observed. The bifurcated orientations optimized geometry micro‐pattern unit size assistance particle‐fluid simulation. Indeed, exceptionally enhanced conductivities through directions: 6.9 W m −1 K through‐plane 7.4 in‐plane, respectively achieved. It also exhibits flexibility minimum radius curvature ≈1 mm capability conformal contact diverse morphologies stably flow even deformed device structures. developed TIM can be applied high‐power, high‐temperature, deformable application environments 3D‐integrated electronics.

Язык: Английский

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Density-controlled thermal and mechanical properties of vertically aligned graphite foam-based polymer composites

Composites Part A Applied Science and Manufacturing, Год журнала: 2024, Номер 186, С. 108436 - 108436

Опубликована: Авг. 28, 2024

Язык: Английский

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Highly Integrated Phase Change and Radiative Cooling Fiber Membrane for Adaptive Personal Thermal Regulation

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 23, 2024

Abstract Environmental heat influx often limits the effectiveness of radiative cooling materials, particularly in wearable applications where thermal comfort is paramount. This study introduces an innovative solution for personal management through phase change (RC‐PC) fiber membranes. Fabricated by coaxial electrospinning, these membranes combine a poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) (PHBV) and tetraethyl orthosilicate (TEOS) composite shell, encapsulating n ‐octadecane as core material. The demonstrate exceptional optical performance, with solar reflectivity 95.0% emissivity 88.6% within atmospheric window, effectively minimizing ambient absorption. ‐octadecane‐infused fibers (0.3 mL h −1 C18@TEOS/PHBV) exhibit enthalpy 88.3 J g , reducing heating rates improving ≈1 °C at dawn. Under typical radiation (939.5 W m −2 ), provide average power 89.0 peaking 95.3 . Notably, they achieve reduction 5.1 under 550.2 maintaining temperatures significantly lower than conventional fabrics, differential 4.4 compared to medical protective clothing. These findings underscore potential RC‐PC sustainable, efficient management.

Язык: Английский

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Boron Nitride/Carbon Fiber High-Oriented Thermal Conductivity Material with Leaves–Branches Structure

Materials, Год журнала: 2024, Номер 17(10), С. 2183 - 2183

Опубликована: Май 7, 2024

In the realm of thermal interface materials (TIMs), high conductivity and low density are key for effective management particularly vital due to growing compactness lightweight nature electronic devices. Efficient directional arrangement is a control strategy significantly improve comprehensive properties materials. present work, drawing inspiration from natural leaf branch structures, simple-to-implement approach fabricating oriented composites introduced. Utilizing carbon fibers (CFs), known their ultra-high conductivity, as branches, this design ensures robust conduction channels. Concurrently, boron nitride (BN) platelets, characterized by substantial in-plane act leaves. These components not only support branches but also serve junctions in network. Remarkably, composite achieves 11.08 W/(m·K) with just an 11.1 wt% CF content 1.86 g/cm3 density. This study expands methodologies achieving highly configurations fibrous flake materials, which provides new idea preparing high-thermal low-density

Язык: Английский

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Effects of Hydroxyethyl Cellulose Protection on Sizes and Thermal Conduction Behaviors of Boron Nitride Nanosheets Exfoliated from Ball-Milling and Homogenization

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(11), С. 13512 - 13522

Опубликована: Июнь 4, 2024

The sizes, shapes, and combination configurations of thermally conductive fillers critically influence the heat dissipation performance their polymer composites. Herein, we combined ball-milling homogenizing together to exfoliate hexagonal boron nitride (h-BN) by using hydroxyethyl cellulose (HEC) aqueous solution as medium, then assembled exfoliated nanosheets (BNNSs) with aramid nanofibers (ANFs) construct composite films, which mechanical properties thermal conductivities were thoroughly investigated. HEC suitable viscosity could produce large size BNNSs due strong resistance impacting forces during ball-milling, but overhigh would lower lateral sizes generate some nanoparticles (NPs) poor dispersity h-BN that may lead direct contact between milling balls. Homogenization further reduced produced abundant NPs; protection inhibit this reducing trend result in in-homogeneous distribution formation more NPs. Compared alone, hybrid NPs yielded higher strength conductivity for composites, possibly because reinforce bridge form compact microstructure highway conduction. Ultimately, obtained highest 39.25 W·m–1·K–1 ANF/BNNS have potential be used sink materials management electronic devices batteries.

Язык: Английский

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