Ceramic Nanocomposites from Tailor-Made  Preceramic Polymers

Mera, Gabriela; Gallei, Markus; Bernard, Samuel; Ionescu, Emanuel

doi:10.3390/nano5020468

Cited by 168 publications

(120 citation statements)

References 423 publications

(564 reference statements)

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“…The authors started from the poly(methyl methacrylate‐ co ‐allylmethacrylate) (P(MMA‐ co ‐ALMA)) core via starved‐feed emulsion polymerization, featuring a poly(ethyl acrylate‐ co ‐(3‐methacryloxypropyltrimethoxysilane)) (PEA‐ co ‐PMEMO) shell material . PMEMO can be used as precursor for crosslinked hybrid siloxane and amorphous SiOC‐based ceramics . In a straightforward step, the crosslinking capability of the siloxane materials was exploited for stabilizing the porous inverse opal structure during thermal treatment.…”

Section: Self‐crosslinking Strategies For the Preparation Of Carbonacmentioning

confidence: 99%

Functional Polymer Opals and Porous Materials by Shear‐Induced Assembly of Tailor‐Made Particles

Gallei

2017

Macromol. Rapid Commun.

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Photonic band-gap materials attract enormous attention as potential candidates for a steadily increasing variety of applications. Based on the preparation of easily scalable monodisperse colloids, such optically attractive photonic materials can be prepared by an inexpensive and convenient bottom-up process. Artificial polymer opals can be prepared by shear-induced assembly of core/shell particles, yielding reversibly stretch-tunable materials with intriguing structural colors. This feature article highlights recent developments of core/shell particle design and shear-induced opal formation with focus on the combination of hard and soft materials as well as crosslinking strategies. Structure formation of opal materials relies on both the tailored core/shell architecture and the parameters for polymer processing. The emphasis of this feature article is on elucidating the particle design and incorporation of addressable moieties, i.e., stimuli-responsive polymers as well as elaborated crosslinking strategies for the preparation of smart (inverse) opal films, inorganic/organic opals, and ceramic precursors by shear-induced ordering.

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Section: Self‐crosslinking Strategies For the Preparation Of Carbonacmentioning

confidence: 99%

Functional Polymer Opals and Porous Materials by Shear‐Induced Assembly of Tailor‐Made Particles

Gallei

2017

Macromol. Rapid Commun.

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“…Many attempts were made to illustrate the role of boron on the crystallization behavior . An important characteristic is that boron holds the key to retarding crystallization and restraining diffusion involved in carbothermal reaction and decomposition of Si‐C‐N nanodomains .…”

Section: Introductionmentioning

confidence: 99%

Boron‐dependent microstructural evolution, thermal stability, and crystallization of mechanical alloying derived SiBCN

Yang

Jia

et al. 2018

J Am Ceram Soc

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Amorphous boron‐rich SiBCN were prepared by high‐energy ball‐milling of the mixtures of Si, graphite, h‐BN, and inorganic boron, which acted as extra boron source. The solid‐state amorphization, thermal stability, and crystallization of the boron‐rich SiBCN were studied in detail. It was suggested that mechanical alloying can drive solid‐state amorphization but also can be an initiation step for the nucleation of nanocrystals. The amorphous networks of Si‐C, C‐B, C‐C, C‐N, B‐N, and C‐B‐N bonds are detected by XPS; however, solid‐state NMR further confirms the formation of a new chemical environment around B atoms, BC3. The increases in boron content improve the thermal stability of SiBCN ceramics but weaken their oxidation resistance. Nano‐SiC crystallizes first while BN(C) forms subsequently. Boron promoting SiC crystallization may result from the reduced hindering effects of B‐N‐C nanodomains that retard SiC crystallization.

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“…Liquid phase synthesis, including spin-on and sol-gel techniques, is usually associated with linear (thermoplastic) polymers or crosslinked (thermoset) resins with alternating silicon and nitrogen atoms in their backbone, and are broadly denoted polysilazanes and aminosilanes. [56][57][58][59][60] Early work in this area was directed toward thermolytic or pyrolytic conversion of polysilazanes directly into shaped or structural silicon nitride ceramics. 61 The successful production of structural ceramics from liquid phase synthesis has not been achieved to date due to issues associated with ceramic yield, by-product diffusion, phase composition, density and chemical composition.…”

Section: Overview Of Silicon Nitride Formation and Deposition Techniquesmentioning

confidence: 99%

Review—Silicon Nitride and Silicon Nitride-Rich Thin Film Technologies: Trends in Deposition Techniques and Related Applications

Kaloyeros

Jové

Goff

et al. 2017

ECS J. Solid State Sci. Technol.

122

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This article provides an overview of the state-of-the-art chemistry and processing technologies for silicon nitride and silicon nitride-rich films, i.e., silicon nitride with C inclusion, both in hydrogenated (SiNx:H and SiNx:H(C)) and non-hydrogenated (SiNx and SiNx(C)) forms. The emphasis is on emerging trends and innovations in these SiNx material system technologies, with focus on Si and N source chemistries and thin film growth processes, including their primary effects on resulting film properties. It also illustrates that SiNx and its SiNx(C) derivative are the focus of an ever-growing research and manufacturing interest and that their potential usages are expanding into new technological areas.

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Ceramic Nanocomposites from Tailor-Made Preceramic Polymers

Cited by 168 publications

References 423 publications

Functional Polymer Opals and Porous Materials by Shear‐Induced Assembly of Tailor‐Made Particles

Functional Polymer Opals and Porous Materials by Shear‐Induced Assembly of Tailor‐Made Particles

Boron‐dependent microstructural evolution, thermal stability, and crystallization of mechanical alloying derived SiBCN

Review—Silicon Nitride and Silicon Nitride-Rich Thin Film Technologies: Trends in Deposition Techniques and Related Applications

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