Last edited by Tusho
Friday, August 7, 2020 | History

3 edition of Carbon-rich ceramic composites from ethynyl aromatic precursors found in the catalog.

Carbon-rich ceramic composites from ethynyl aromatic precursors

Carbon-rich ceramic composites from ethynyl aromatic precursors

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  • 11 Currently reading

Published by National Aeronautics and Space Administration, For sale by the National Technical Information Service in [Washington, DC, Springfield, Va .
Written in English

    Subjects:
  • Fiber-reinforced ceramics.

  • Edition Notes

    Other titlesCarbon rich ceramic composites from ethynyl aromatic precursors
    StatementFrancis I. Hurwitz.
    SeriesNASA technical memorandum -- 8812
    ContributionsUnited States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17095367M


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Carbon-rich ceramic composites from ethynyl aromatic precursors Download PDF EPUB FB2

Get this from a library. Carbon-rich ceramic composites from ethynyl aromatic precursors. [Frances I Hurwitz; United States. National Aeronautics and Space Administration.]. Where does ceramic composites come from. Wiki User Plastic is a hybrid that comes from an oil called naphta being. broken down by way of heat treatment into the smaller.

Francis I. Hurwitz has written: 'Carbon-rich ceramic composites from ethynyl aromatic precursors' -- subject(s): Fiber-reinforced ceramics. What are advanced cermet ceramic composites. (The material cermet is a combination of ceramic and metallic materials.) "Where a metal part would fail.

Polymer derived ceramics seem to be a promising route to produce mixed non-oxide ceramic composites with homogeneous micro- structure after suitable pyrolysis of polymeric precursors [11e14].

Recently, single source metal-containing polymeric precursors have a potential for progress in the ï¬ eld of polymer derived ce- ramics as they form an Cited by: 3. Introduction. Polymer-derived ternary SiCN ceramics are a new class of materials possessing oxidation and creep resistance up to exceptionally high temperatures,1, 2 properties which are improved when the ceramics are fabricated with a high content of excess carbon, as published recently in the case of SiCO materials.3, 4, 5 The high-temperature stability was also traced back to the Cited by: Aromatic polyimides (PIs), a representative of high performance polymers, are commonly employed as polymer precursors for carbon materials due to their high carbon yield and flexible molecular.

Carbon-Rich SiCN Ceramics Derived from Phenyl-Containing Poly(Silylcarbodiimides) Article in Journal of the European Ceramic Society 29(13) February with Reads.

Branko Matović, Toyohiko Yano, in Handbook of Advanced Ceramics (Second Edition), Pyrolysis of Organic Compounds. Organometallic polymer precursors offer unique opportunities for manufacturing of ceramic components using versatile plastic shaping techniques established in the engineering plastics industry such as casting, pressing, injection molding, or extrusion [79].

Silicon carbide (SiC), also known as carborundum / k ɑːr b ə ˈ r ʌ n d əm /, is a semiconductor containing silicon and occurs in nature as the extremely rare mineral tic SiC powder has been mass-produced since for use as an of silicon carbide can be bonded together by sintering to form very hard ceramics that are widely used in applications.

Non-pyrophoric polymethylsilane (PMS) SiC precursors allow for preparation of dense phase pure SiC with stoichiometry. Sintering aids may be readily and reproducibly incorporated into the hyperbranched PMS. The PMS has rheology suitable for the preparation of films, coatings, fibers, and for processes such as joining and ceramic infiltration densification.

TECHNOLOGICAL FIELD. The present invention pertains to hyperbranched, highly processable precursors to phase pure, fully dense silicon carbide having a controlled microstructure that can be processed into films, fibers, ceramic-ceramic joins. Lignin, as an abundant carbon-rich renewable resource, is a promising precursor for carbon fibers.

However, due to the poor spinnability of lignin, a great challenge comes from the spinning of precursor fibers. In this work, a series of lignosulfonate–acrylonitrile (LS–AN) copolymers with different LS contents were prepared by a two-step process consisting of esterification and free.

Full text of "DTIC ADA Proceedings of the Japan - U.S. Conference on Composite Materials (6th) Held in Orlando, Florida on June" See other formats. The present invention relates to methods of transforming organic matter into organic-inorganic composites, inorganic replicas, or conductive replicas.

Organic matter, such. You can write a book review and share your experiences. Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them.

Oct 4, - group metals produced by Anglo Platinum Limited, South rights are. and P. McIntire, American Society for. Nondestructive. Ethynyl and substituted ethynyl-terminated polysulfones. NASA Technical Reports Server (NTRS) Hergenrother, P.

(Inventor) Ethynyl and substituted ethynyl-terminated. Thermal Degradation of Polymeric Materials Decomposition investigations on the wholly aromatic thermotropic liquid-crystalline polymers – the polyimide made of 1,2,4,5-benzenetetracarboxylic dianhydride (PMDA) and 1,3-bis(4-(4 -aminophenoxy)cumyl)benzene (BACB), and the polyamide made of terephthaloyl chloride and BACB – showed that the.

Graphene: Synthesis and Applications process, which has myriad possibilities to obtain various morphologies of graphene over a wide range of substrates. However, the process is costly and incapable of producing graphene directly on polymer substrates, and involves a transfer process that could introduce defects and contaminants in graphene.

- Free ebook download as PDF File .pdf), Text File .txt) or read book online for free.Gold Science and Applications.