Article
Materials Science, Ceramics
Chunrong Zou, Shaojun Guo, Siqing Wang, Tongsheng Shen, Xiaosong Zhou, Bin Li, Duan Li, Junsheng Li
Summary: In this study, dense BN with relative density higher than 95% was achieved without sintering additives via a self-densifying approach of borazine. The microstructural and crystalline evolution of the bulk BN ceramics, as well as their mechanical, thermal, and dielectric properties, were investigated.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Composites
Houbao Liu, Xinqing Su, Renli Fu, Binyong Wu, Xudong Chen
Summary: By adding short carbon fibers and boron nitride particles to the PDMS matrix, the thermal conductivity and electrical insulation of the flexible polymer composite films were significantly enhanced, showing excellent electrical insulation properties. The combination of SCF and BN particles constructed an effective thermal conduction path while inhibiting the formation of conductive paths, leading to a 990% enhancement in thermal conductivity compared to pure PDMS.
COMPOSITES COMMUNICATIONS
(2021)
Article
Materials Science, Composites
Zhanyi Wang, Xuan Wang, Zhonghua Zhang, Liang Liang, Zhihang Zhao, Jiahao Shi
Summary: It is crucial to improve the thermal management capability of polymeric materials while maintaining their electrical insulating properties. Constructing thermally conductive networks with three-dimensional structures inside polymers is an efficient way to build thermally conductive pathways. This work provides a new direction for the preparation of thermal management materials.
POLYMER COMPOSITES
(2023)
Review
Materials Science, Ceramics
Abanti Nag, R. Ramachandra Rao, P. K. Panda
Summary: Radome, an enclosure for radar antenna in military aircraft and missiles, is classified based on function type and operation speed. While composite laminates are suitable for subsonic applications, ceramics are the only option for high-speed military aerospace applications. Silicon nitride based radome materials with controlled porosity are proposed as futuristic high temperature materials for supersonic applications.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Jiaxi Zeng, Zhiqiang Chen, Mengxiong Li, Yixuan Guo, Jian Xu, Xiaoli Zhao, Hongbin Lu
Summary: Carbon aerogels are commonly used in composites to enhance thermal conductivity, but their low density and high porosity limit the amount of filler loading. Constructing carbon aerogels with a compact skeleton remains a challenge. This study proposes an in situ assembled and post-degas strategy to shrink expanded graphite aerogels, resulting in a densified structure that improves phonon/electron transfer and increases thermal conductivity in composites.
CHEMISTRY OF MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Dario Marchionni, Sumon Basak, Alireza Nazari Khodadadi, Assunta Marrocchi, Luigi Vaccaro
Summary: The past decade has witnessed a renewed interest in borazines and BN-doped polycyclic aromatic hydrocarbons due to their potential in various applications. This review critically examines the synthesis methods of (substituted) B3N3 motifs and focuses on the discussion of borazine-doped carbon structures developed for materials science applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Manufacturing
Miracle Hope Adegun, Kit-Ying Chan, Jie Yang, Harun Venkatesan, Eunyoung Kim, Heng Zhang, Xi Shen, Jinglei Yang, Jang-Kyo Kim
Summary: Anisotropic boron nitride nanosheet (BNNS)/polyvinyl alcohol composite aerogels with an aligned porous structure are developed using freeze-casting technique. The optimized BNNS content in the composite aerogel exhibits an ultralow thermal conductivity of 20.3 mW/mK in the through-thickness direction, a high solar-weighted reflectance of 95.0% and a high emittance of above 93%. These exceptional thermo-optical properties make the composite aerogel promising for energy saving in buildings as superinsulating envelopes.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Materials Science, Multidisciplinary
Youli Sun, Hongbo Dang, HaoYuan Tan, Jiashuang Luan, Dong Jiang, Yanhua Yang
Summary: A novel class of boron nitride nanosheets (BNNSs)/PEEK composites with excellent heat dissipation properties has been developed through simple hot-press sintering. The presence of well-orientated structure of BNNSs greatly improves the thermal conductivity of the composites, showing potential for enhancing the thermal management application of PEEK-based composites in emerging electronic devices.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Jawad Hadid, Ivy Colambo, Jose Avila, Alexandre Plaud, Christophe Boyaval, Dominique Deresmes, Nicolas Nuns, Pavel Dudin, Annick Loiseau, Julien Barjon, Xavier Wallart, Dominique Vignaud
Summary: In this study, 2D boron nitride (2D-BN) was synthesized using gas-source molecular beam epitaxy. The nucleation density and shape of 2D-BN domains were found to be influenced by the preparation of the nickel substrate and growth parameters. The origin of the N1s and B1s components and their relationship with electronic coupling at the interface were analyzed using spatially-resolved photoemission spectroscopy and detection of the pi plasmon peak.
Article
Engineering, Multidisciplinary
Haitao Zhang, Xupeng Fan, Weijun Chen, Yubo Wang, Changwei Liu, Baojun Cui, Gang Li, Junjun Song, Daoxiang Zhao, Daming Wang, Liwei Zhao, Xiao Zhang, Huikang Xu, Chunhai Chen
Summary: The study successfully fabricated thermoplastic PI foams with excellent thermal-insulating properties and temperature resistance by linking flexible blocks into rigid polymeric structures through a simple aqueous strategy to construct hydrogen-bonding networks.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Materials Science, Composites
Houbao Liu, Renli Fu, Xinqing Su, Binyong Wu, He Wang, Yue Xu, Xuhai Liu
Summary: This study presents a layer-by-layer spin coating process to prepare multilayer films with ordered alternate structures; the combination of MXene and PDMS provides effective EMI shielding, while BN and PDMS offer efficient heat dissipation. The EMI SE of the multilayer films increases with the number of layers, but an increase in layers results in decreased thermal conductivity and electrical insulation performance.
COMPOSITES COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Zongwei Tong, Xiangjie Yan, Yuexiang Wang, Kexun Li, Weihai Ma
Summary: Si3N4@SiO2 ceramic foams were prepared using an efficient dry-method, which combined three processes. The foam possessed low density, high compressive strength, low thermal conductivity, and excellent dielectric properties, making it suitable for improving the thermal insulation and electromagnetic wave transparency performances of Si3N4 ceramic radomes.
Article
Materials Science, Multidisciplinary
Yeye Liu, Leilei Zhang, Ruonan Zhang, Siqi Shao, Lina Sun, Xinyi Wan, Tiantian Wang
Summary: A highly flexible, mechanically stable, fire-retardant, and high-temperature-resistant ceramic membrane based on interlocked Si3N4 nanowires was reported. The membrane exhibited excellent thermal insulation with low thermal conductivity and maintained its structural integrity and mechanical properties at high temperatures.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Andrew Reyes, Andy Nieto
Summary: The study successfully consolidated Boron Nitride Nanoplatelets (BNNP) into a bulk form using a low energy processing route, retaining unique features of BNNP such as platelet stacking and kinking, and introducing a secondary metallic constituent to improve processability and enhance structural support. With the incorporation of Al binder contents as low as 10 vol %, the relative density, elastic modulus, and hardness increased.
CERAMICS INTERNATIONAL
(2021)
Review
Materials Science, Composites
Dinesh Ramesh Salunke, Venkatachalam Gopalan
Summary: This paper examines recent developments in highly thermal conductive epoxy-based polymer composites, focusing on composite materials, thermal conductivity of polymer types, and thermal and electric properties of composites with boron nitride. The review also addresses challenges and the need for further development in thermal conductive polymer materials.
POLYMER COMPOSITES
(2021)
