Influence of the carbonization temperature on the mechanical properties of thermoplastic polymer derived C/C-SiC composites

Reichert, Florian; Pérez-Mas, Ana M.; Barreda, D. García-G.; Blanco, Clara; Santamarı́a, Ricardo; Kuttner, Christian; Fery, Andreas; Langhof, Nico; Krenkel, Walter

doi:10.1016/j.jeurceramsoc.2016.09.005

Cited by 39 publications

(21 citation statements)

References 44 publications

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“…Figure 6 shows the Raman spectrum of the Si-C composite. The peak at around 500 cm −1 corresponds to a silicon band [ 50 , 51 ]. Two strong peaks at around 1350 and 1570 cm −1 are D-band and G-band of carbon, indicating the disordered carbon and ordered graphitic carbon, respectively.…”

Section: Resultsmentioning

confidence: 99%

Solution-Plasma-Mediated Synthesis of Si Nanoparticles for Anode Material of Lithium-Ion Batteries

Saito

Sasaki²,

Takahashi

et al. 2018

Nanomaterials

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Silicon anodes have attracted considerable attention for their use in lithium-ion batteries because of their extremely high theoretical capacity; however, they are prone to extensive volume expansion during lithiation, which causes disintegration and poor cycling stability. In this article, we use two approaches to address this issue, by reducing the size of the Si particles to nanoscale and incorporating them into a carbon composite to help modulate the volume expansion problems. We improve our previous work on the solution-plasma-mediated synthesis of Si nanoparticles (NPs) by adjusting the electrolyte medium to mild buffer solutions rather than strong acids, successfully generating Si-NPs with <10 nm diameters. We then combined these Si-NPs with carbon using MgO-template-assisted sol-gel combustion synthesis, which afforded porous carbon composite materials. Among the preparations, the composite material obtained from the LiCl 0.2 M + H3BO3 0.15 M solution-based Si-NPs exhibited a high reversible capacity of 537 mAh/g after 30 discharge/charge cycles at a current rate of 0.5 A/g. We attribute this increased reversible capacity to the decreased particle size of the Si-NPs. These results clearly show the applicability of this facile and environmentally friendly solution-plasma technique for producing Si-NPs as an anode material for lithium-ion batteries.

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Section: Resultsmentioning

confidence: 99%

Solution-Plasma-Mediated Synthesis of Si Nanoparticles for Anode Material of Lithium-Ion Batteries

Saito

Sasaki²,

Takahashi

et al. 2018

Nanomaterials

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“…Some instrument detection methods are used to evaluate the diamond retention ability, including SEM, X-ray diffractometry (XRD), energy dispersive spectrometry (EDS), and Raman spectroscopy [71][72][73][74][75][76][77][78][79][80]. SEM is mostly utilized to observe the diamond-matrix interfacial morphology of a fractured surface.…”

Section: Instrument Detection Methodsmentioning

confidence: 99%

A Review of the Diamond Retention Capacity of Metal Bond Matrices

Xiao-jun

Duan

2018

Metals

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This article presents a review of the current research into the diamond retention capacity of metal matrices, which largely determines the service life and working performance of diamond tools. The constitution of diamond retention capacity, including physical adsorption force, mechanical inlaying force, and chemical bonding force, are described. Improved techniques are summarized as three major types: (1) surface treatment of the diamond: metallization and roughening of the diamond surface; (2) modification of metal matrix: the addition of strong carbide forming elements, rare earth elements and some non-metallic elements, and pre-alloying or refining of matrix powders; (3) change in preparation technology: the adjustment of the sintering process and the application of new technologies. Additionally, the methods used in the evaluation of diamond retention strength are introduced, including three categories: (1) instrument detection methods: scanning electron microscopy, X-ray diffractometry, energy dispersive spectrometry and Raman spectroscopy; (2) mechanical test methods: bending strength analytical method, tension ring test method, and other test methods for chemical bonding strength; (3) mechanical calculation methods: theoretical calculation and numerical computation. Finally, future research directions are discussed.

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“…Thermoplastic polymers such as polybenzimidazoles (PBI), 6 polyetheretherketone (PEEK), 7,8 and polyetherimide (PEI) 9 were successfully employed as carbon precursors.…”

Section: Introductionmentioning

confidence: 99%

Influence of pyrolysis and Silicon infiltration on the properties of CMC parts shaped by composite flow molding

Bianchi

Vitullo

Vodermayer³

et al. 2021

Int J Applied Ceramic Tech

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This paper investigates the influence of thermal process parameters on the mechanical properties and final microstructure of SiC-based ceramic matrix composites parts shaped by composite flow molding, and converted into ceramics by pyrolysis and reactive silicon melt infiltration. Green composite parts consisted of a thermoplastic matrix (PEEK) reinforced with continuous carbon fibers. Parts were pyrolyzed between 960°C and 2000°C and subsequently Si infiltrated between 1600°C and 1800°C, with a dwell time of 1 to 3 h. An experimental plan was defined following a design of experiment (DOE) approach. At high pyrolysis and infiltration temperatures, samples show higher modulus of rupture (280 MPa) and flexural modulus (158 GPa). A qualitative image analysis was adopted to estimate the CMC composition. A predictive model allowing the estimation of the composite toughness as a function of the significant process parameters was derived by applying the DOE methodology and the analysis of variances. The model is based on the observed correlations between the process parameters and their influence on the material property of interest. The most influential parameters are the silicon infiltration temperature and the dwell time. This is due to their control over the reaction kinetics between C and Si to obtain SiC.

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Influence of the carbonization temperature on the mechanical properties of thermoplastic polymer derived C/C-SiC composites

Cited by 39 publications

References 44 publications

Solution-Plasma-Mediated Synthesis of Si Nanoparticles for Anode Material of Lithium-Ion Batteries

Solution-Plasma-Mediated Synthesis of Si Nanoparticles for Anode Material of Lithium-Ion Batteries

A Review of the Diamond Retention Capacity of Metal Bond Matrices

Influence of pyrolysis and Silicon infiltration on the properties of CMC parts shaped by composite flow molding

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