Fabrication and characterization of boron nitride bulk foam from borazine

Cao, Feng; Ding, Yang; Chen, Li; Chen, Chen; Zhou, Fang

doi:10.1016/j.matdes.2013.08.089

Cited by 20 publications

(13 citation statements)

References 27 publications

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“…Not long ago, h‐BN, the isoelectric analogs to graphene with similar structural properties except for its electrical insulation with high dielectric constant, has also evolved into the 3D form and found its niche in ultralow permittivity applications. This ceramic bulk foams are also found to have high specific strength, low dielectric constants and loss tangents, and good thermal conductivity for high temperature application and thermal insulation …”

Section: Comparison Between Measured Thermal Conductivity Of the Foammentioning

confidence: 99%

Configurable Three‐Dimensional Boron Nitride–Carbon Architecture and Its Tunable Electronic Behavior with Stable Thermal Performances

Loeblein

Tay

Tsang³

et al. 2014

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Recent developments of 3D-graphene and 3D-boron-nitride have become of great interest owing to their potential for ultra-light flexible electronics. Here we demonstrate the first synthesis of novel 3D-BNC hybrids. By specifically controlling the compositions of C and BN, new fascinating properties are observed, such as highly tunable electrical conductivity, controllable EMI shielding properties, and stable thermal conductivity. This ultra-light hybrid opens up many new applications such as for electronic packaging and thermal interface materials (TIMs).

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Section: Comparison Between Measured Thermal Conductivity Of the Foammentioning

confidence: 99%

Configurable Three‐Dimensional Boron Nitride–Carbon Architecture and Its Tunable Electronic Behavior with Stable Thermal Performances

Loeblein

Tay

Tsang³

et al. 2014

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“…Through curing which was conducted under different H 2 pressures, borazine precursor underwent condensation polymerization, releasing H 2 gas and foaming the matrix. It was found that increasing the H 2 pressure, decreased the cell size and high total porosities reaching 96% could be obtained . Lead‐zinc mine tailings (LZMT) are hazardous wastes, originated during lead and zinc production.…”

Section: Processing Strategiesmentioning

confidence: 94%

“…Closed porosity BN ceramics demonstrated to have characteristics that make them suitable as radome since RT dielectric constant and loss tangent values were as low as 1.25 and 0.0031, respectively. Increasing the test temperatures up to 1300°C caused a slight rise in the values but they were still acceptable to be high‐temperature wave‐transparent material …”

Section: Properties and Applicationsmentioning

confidence: 99%

Closed porosity ceramics and glasses

2020

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In the last three decades, considerable effort has been devoted to obtain both open and closed porosity ceramics & glasses in order to benefit from unique combination of properties such as mechanical strength, thermal and chemical stability at low‐relative density. Most of these investigations were directed to the production and the analysis of the properties for open porosity materials, and regrettably quite a few compositions and manufacturing methods were documented for closed porosity ceramics & glasses in the scientific literature so far. This review focuses on the processing strategies, the properties and the applications of closed porosity ceramics & glasses with total porosity higher than 25%. The ones below such level are intentionally left out and the paper is set out to demonstrate the porous components with deliberately generated closed pores/cells. The processing strategies are categorized into five different groups, namely sacrificial templating, high‐temperature bonding of hollow structures, casting, direct foaming, and emulsions. The principles underlying these methods are given, with particular emphasis on the critical issues that affect the pore characteristics, mechanical, thermal and electrical properties of the produced components.

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“…60 In another report, polyborazine was used instead for the foaming. 61 Finally, a technique getting more popular is the use of natural resources, whereby the natural resource is completely converted into 3D-C without remainders, and is thus grouped under the substrate-less techniques. Some examples are sugar, bread and CO2.…”

Section: Template Freementioning

confidence: 99%

“…This work showed the benefit of the continuous 3D-C structures that achieve elimination of internal contact thermal resistance. Zhang et al 105 3D-BN was proposed by Cao et al 61 to be used for high-temperature radomes and thermal insulation.…”

Section: D-c and 3d-bn In Thermal Applicationsmentioning

confidence: 99%

Boron nitride carbon foams for various thermal applications

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Fabrication and characterization of boron nitride bulk foam from borazine

Cited by 20 publications

References 27 publications

Configurable Three‐Dimensional Boron Nitride–Carbon Architecture and Its Tunable Electronic Behavior with Stable Thermal Performances

Configurable Three‐Dimensional Boron Nitride–Carbon Architecture and Its Tunable Electronic Behavior with Stable Thermal Performances

Closed porosity ceramics and glasses

Boron nitride carbon foams for various thermal applications

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