Correlation between structural features and mechanical properties of boron nitride fibres derived from alkylaminoborazines

Miele, Philippe; Toury, Bérangère; Chassagneux, Fernand; Fulchiron, René

doi:10.1016/j.jeurceramsoc.2004.07.023

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…BN are gaining growing attentions as an important advanced ceramic material due to their advantages including low density, high-temperature stability, chemical inertness, stability to thermal shock, extremely low electrical conductivity and high thermal conductivity [1,2]. Till now, much attention has been paid to fabrication and characterization of BN for applications of electronic devices, microwave tubes, and aeronautic engines [3], such as BN nanotubes (BNNTs) [4], BN nanowires [5], BN fibres [6,7], BN film [8][9] and BN powder [10]. Like many other non-oxide ceramics, the application of BN is limited by its inherent brittleness [11].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Chemical Composition of Boron Nitride Fibers

Tang

et al. 2013

KEM

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Boron nitride(BN) fibres were synthesized by modified technique of Economy’s method. The products were characterized by X-ray diffraction (XRD), fourier transform infrared (FT-IR) absorption spectroscopy, field-emission scanning electron microscopy (FE-SEM), X-ray energy dispersive spectrum (EDS) and X-ray photoelectron spectroscopy (XPS). The results showed that BN fibers were mainly hexagonal boron nitride (h-BN) with diameters of 5-8 μm and the major compositions of BN fibers are B and N with a very small amount of O and C. At last, the chemical composition of samples were determined by the chemical analysis test method like GB/T 16555-2008 and GJB 507-1998.

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Section: Introductionmentioning

confidence: 99%

Microstructure and Chemical Composition of Boron Nitride Fibers

Tang

et al. 2013

KEM

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“…13 Moreover, it has been found that the processability of precursors derived from TCB was strongly dependent on the substituted alkylamino groups linked with boron atoms. 7,14,15 Variation in spinnability driven by different side chains, including methylamino, 16 diethylamino, 3,6,17 n-propylamine, 18,19 isopropylamino, 20,21 and dipentylamino, 8 was demonstrated and investigated in detail, respectively. Among them, poly [2-propylamino-4,6-bis(methylamino)borazine] (PPAB) synthesized from 2-propylamino-4,6-bis(m ethylamino)borazine (PAB) has a desirable spinnability.…”

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Design and synthesis of a novel spinnable polyborazine precursor with high ceramic yield via one‐pot copolymerization

Wang

et al. 2021

J. Am. Ceram. Soc.

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BN fibers are one of the most potential reinforcements in high-temperature wave transparent composite. Polyborazane is an essential precursor of the polymerderived ceramics (PDCs) route to prepare BN continuous fibers. 1 The composition and structure of polyborazane not only make a significant impact on the melting spinning process but also determine the properties of BN continuous fiber to a great extent. 2,3 The synthesis, structure characterization, and melt spinning properties of the BN precursors create substantial interest, both scientifically and for practical purposes. 4,5 Presently, BN precursors can be generally divided into three types, which are derived from borazine, alkylamino borane, and tri-chloroborazine (TCB), respectively. Precursors derived from borazine were, firstly, investigated for BN fiber preparation. [6][7][8] Although the precursors have excellent ceramic yields of 81%-91%, the poor spinnability caused by the excessive reactivity and overlinking restricts further development. 9,10 The route based on alkylamino borane was also explored sufficiently. 11 Derivatives from alkylamino borane

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