Rheology and processability of multi-walled carbon nanotubes—ABSE polycarbosilazane composites

Kokott, Sylvia; Heymann, Lutz; Motz, Günter

doi:10.1016/j.jeurceramsoc.2007.09.035

Cited by 29 publications

(16 citation statements)

References 22 publications

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“…Furthermore, the incorporation of B and N allowed for the synthesis of fibers that remain amorphous at temperatures up to ∼1700°C in inert atmospheres, with strengths equaling those of SiC‐based fibers, with superior oxidation and creep resistance 453 . Other recent developments include the fabrication of BN fibers 454 and of SiCN fibers containing multiwalled CNTs; in the latter, the addition of 1 wt% MWCNTs led to an increment of 100% in tensile strength for green fibers 455 and 50% for pyrolyzed ones.…”

Section: Applications Of Pdcsmentioning

confidence: 99%

Polymer‐Derived Ceramics: 40 Years of Research and Innovation in Advanced Ceramics

Colombo

Mera

Riedel

et al. 2010

Journal of the American Ceramic Society

1,550

582

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Preceramic polymers were proposed over 30 years ago as precursors for the fabrication of mainly Si-based advanced ceramics, generally denoted as polymer-derived ceramics (PDCs). The polymer to ceramic transformation process enabled significant technological breakthroughs in ceramic science and technology, such as the development of ceramic fibers, coatings, or ceramics stable at ultrahigh temperatures (up to 20001C) with respect to decomposition, crystallization, phase separation, and creep. In recent years, several important advances have been achieved such as the discovery of a variety of functional properties associated with PDCs. Moreover, novel insights into their structure at the nanoscale level have contributed to the fundamental understanding of the various useful and unique features of PDCs related to their high chemical durability or high creep resistance or semiconducting behavior. From the processing point of view, preceramic polymers have been used as reactive binders to produce technical ceramics, they have been manipulated to allow for the formation of ordered pores in the meso-range, they have been tested for joining advanced ceramic components, and have been processed into bulk or macroporous components. Consequently, possible fields of applications of PDCs have been extended significantly by the recent research and development activities. Several key engineering fields suitable for application of PDCs include high-temperature-resistant materials (energy materials, automotive, aerospace, etc.), hard materials, chemical engineering (catalyst support, food- and biotechnology, etc.), or functional materials in electrical engineering as well as in micro/ nanoelectronics. The science and technological development of PDCs are highly interdisciplinary, at the forefront of micro- and nanoscience and technology, with expertise provided by chemists, physicists, mineralogists, and materials scientists, and engineers. Moreover, several specialized industries have already commercialized components based on PDCs, and the production and availability of the precursors used has dramatically increased over the past few years. In this feature article, we highlight the following scientific issues related to advanced PDCs research: (1) General synthesis procedures to produce silicon-based preceramic polymers. (2) Special microstructural features of PDCs. (3) Unusual materials properties of PDCs, that are related to their unique nanosized microstructure that makes preceramic polymers of great and topical interest to researchers across a wide spectrum of disciplines. (4) Processing strategies to fabricate ceramic components from preceramic polymers. (5) Discussion and presentation of several examples of possible real-life applications that take advantage of the special characteristics of preceramic polymers. Note: In the past, a wide range of specialized international symposia have been devoted to PDCs, in particular organized by the American Ceramic Society, the European Materials Society, and the Materials Research S...

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Section: Applications Of Pdcsmentioning

confidence: 99%

Polymer‐Derived Ceramics: 40 Years of Research and Innovation in Advanced Ceramics

Colombo

Mera

Riedel

et al. 2010

Journal of the American Ceramic Society

1,550

582

View full text Add to dashboard Cite

show abstract

“…The addition of just 0.5 wt% carbon nanotubes improves the viscoelasticity of the polymer melts, allowing the processing of reinforced ceramic C/SiCN fibers via melt spinning and curing via electron beam (300 kGy). The ceramic C/SiCN fibers pyrolyzed at 1,100°C can reach tensile strengths about 50 % higher than the ABSE-derived ceramic SiCN fibers without carbon nanotubes (Kokott et al 2008).…”

Section: Polymer-derived Sicn Fibersmentioning

confidence: 87%

Ceramics for Sustainable Energy Technologies with a Focus on Polymer-Derived Ceramics

Konegger

Torrey

Flores

et al. 2014

Novel Combustion Concepts for Sustainable Energy Development

Self Cite

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Due to their high hardness, high temperature stability, and high chemical stability, ceramic materials have significant uses and potential in existing and emerging sustainable technologies. In this paper, we provide a thorough overview of ceramics in a variety of sustainable applications. This is followed by a detailed discussion of an emerging process to make ceramics called polymer (or precursor)-derived ceramics. It is shown that due to the versatility of this process in making a wide range of shapes-fibers, coatings, and porous ceramics, this is an attractive route to make ceramics that will be a critical element in the next generation of sustainable technologies.

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“…The ceramic C/SiCN fibers pyrolyzed at 1,100°C can reach tensile strengths about 50 % higher than the ABSE-derived ceramic SiCN fibers without carbon nanotubes (Kokott et al 2008). The addition of just 0.5 wt% carbon nanotubes improves the viscoelasticity of the polymer melts, allowing the processing of reinforced ceramic C/SiCN fibers via melt spinning and curing via electron beam (300 kGy).…”

Section: Polymer-derived Sicn Fibersmentioning

confidence: 99%

Novel Combustion Concepts for Sustainable Energy Development

Ágarwal¹,

Pandey²,

Gupta³

et al. 2014

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Rheology and processability of multi-walled carbon nanotubes—ABSE polycarbosilazane composites

Cited by 29 publications

References 22 publications

Polymer‐Derived Ceramics: 40 Years of Research and Innovation in Advanced Ceramics

Polymer‐Derived Ceramics: 40 Years of Research and Innovation in Advanced Ceramics

Ceramics for Sustainable Energy Technologies with a Focus on Polymer-Derived Ceramics

Novel Combustion Concepts for Sustainable Energy Development

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