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Bauer, Horst; Dietsche, Karl-Heinz; Jäger, Thomas

doi:10.1007/978-3-663-10554-1_18

Cited by 13 publications

(23 citation statements)

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“…Motivated by these considerations, we report additively manufacturing of high-temperature capable copper-reinforced SiOC conductor after pyrolysis of preceramic precursors, [31,32] enabling resistance temperature detectors (RTD) at high temperatures (Figure 1). The copper nanoplates (Cu NPLs) with 2D architecture are selected as the metallic building block.…”

Section: Resultsmentioning

confidence: 99%

Additive Manufacturing of High‐Temperature Preceramic‐Derived SiOC Hybrid Functional Ceramics

Li,

Khuje,

Islam

et al. 2023

Adv Eng Mater

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High temperature capable materials, metals, and ceramics are attracting significant interest for applications in extreme environmental conditions. Here, we report a hybrid metal reinforced ceramic matrix material consisting of preceramic derived high temperature SiOC and copper nanoplates, enabling the manufacturing of high temperature sensing electronics. The preceramic polymer precursors including polydimethylsiloxane and polydimethylsilane, together with copper nanoplates, are thermally converted into durable copper reinforced SiOC ceramics. The presence of copper in SiOC ceramics enhances its electrical conductivity, while SiOC suppresses oxygen uptake and acts as a shield for oxidation to achieve high temperature thermal resistance and negative temperature coefficient at high temperatures. A comprehensive electric and sensing performance, combined with cost‐effectiveness and scalability, could facilitate the utilization of hybrid Cu and SiOC composites in high‐temperature electronics.This article is protected by copyright. All rights reserved.

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Section: Resultsmentioning

confidence: 99%

Additive Manufacturing of High‐Temperature Preceramic‐Derived SiOC Hybrid Functional Ceramics

Li,

Khuje,

Islam

et al. 2023

Adv Eng Mater

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“…[26] Recently, Bauer et al presented the AM of nanoscale optical-grade glass architectures via a sinterless approach, utilizing a photoresist based on polyhedral oligomeric silsesquioxanes. [27] Reports on microarchitectures of more complex chemical composition often rely on the application of sol-gel photoresist based on a Si backbone, which permits the fabrication of, for example, mixed SiO 2 and ZrO 2 , [28] or SiO 2 and TiO 2, [29] SiOC, [30,31] SiCN, [32] or SiBCN. [33] Alternatively, salts can be introduced to the photoresist to yield, that is, Y 3 Al 5 O 12, [34] or dope ZrO 2 with lanthanides.…”

Section: Introductionmentioning

confidence: 99%

3D‐Architected Alkaline‐Earth Perovskites

Winczewski,

Arriaga Dávila,

Herrera‐Zaldívar

et al. 2024

Advanced Materials

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Three‐dimensional (3D) ceramic architectures are captivating geometrical features with an immense demand in photonics. Here, we develop an additive manufacturing (AM) approach for printing alkaline‐earth perovskite 3D microarchitectures. The newly developed approach enables custom‐made photoresists suited for two‐photon lithography, permitting the production of alkaline‐earth perovskite (BaZrO3, CaZrO3, and SrZrO3) 3D structures shaped in the form of octet‐truss lattices, gyroids or inspired architectures like sodalite zeolite, and C60 buckyball with micrometric and nanometric feature sizes. Alkaline‐earth perovskite morphological, structural, and chemical characteristics are studied. The optical properties of such perovskite architectures are investigated using cathodoluminescence and wide‐field photoluminescence emission to estimate the lifetime rate and defects in BaZrO3, CaZrO3, and SrZrO3. From a broad perspective, our AM methodology facilitates the production of 3D‐structured mixed oxides. Our findings are the first steps toward dimensionally‐refined high refractive index ceramics for micro‐optics and other terrains like (photo)catalysis.This article is protected by copyright. All rights reserved

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“…For the washed components with limited organics, the debinding and sintering speed was increased by around five times. [ 35 ] Furthermore, to lower the sintering temperature, a solvent‐free, pre‐condensed liquid silica resin [ 36,37 ] and a polyhedral oligomeric silsesquioxanes (POSS) resin [ 38 ] capable of forming continuous silicon‐oxygen molecular networks were developed, which can be derived transparent glasses with a temperature reduction of 500 o C as compared with that required by the dominant sol‐gel and nanocomposite approaches. No matter which approach is adopted for the process improvement, the organics are indispensable for forming the photocurable slurry for the pre‐shaping.…”

Section: Introductionmentioning

confidence: 99%

Room‐Temperature Molding of Complex‐Shaped Transparent Fused Silica Lenses

Xu,

Du,

Wang

et al. 2023

Advanced Science

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The high hardness, brittleness, and thermal resistance impose significant challenges in the scalable manufacturing of fused silica lenses, which are widely used in numerous applications. Taking advantage of the nanocomposites by stirring silica nanopowders with photocurable resins, the newly emerged low‐temperature pre‐shaping technique provides a paradigm shift in fabricating transparent fused silica components. However, preparing the silica slurry and carefully evaporating the organics may significantly increase the process complexity and decrease the manufacturing efficiency for the nanocomposite‐based technique. By directly pressing pure silica nanopowders against the complex‐shaped metal molds in minutes, this work reports an entirely different room‐temperature molding method capable of mass replication of complex‐shaped silica lenses without organic additives. After sintering the replicated lenses, fully transparent fused silica lenses with spherical, arrayed, and freeform patterns are generated with nanometric surface roughness and well‐reserved mold shapes, demonstrating a scalable and cost‐effective route surpassing the current techniques for the manufacturing of high‐quality fused silica lenses.

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Autoelektrik

Cited by 13 publications

References 0 publications

Additive Manufacturing of High‐Temperature Preceramic‐Derived SiOC Hybrid Functional Ceramics

Additive Manufacturing of High‐Temperature Preceramic‐Derived SiOC Hybrid Functional Ceramics

3D‐Architected Alkaline‐Earth Perovskites

Room‐Temperature Molding of Complex‐Shaped Transparent Fused Silica Lenses

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