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Polymers
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Research and Application of Polymer-Derived Ceramics
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Research and Application of Polymer-Derived Ceramics

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: closed (25 May 2024) | Viewed by 6571

Special Issue Editor

Dr. Li Ye

E-Mail Website
Guest Editor
Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
Interests: polymer-derived ultra-high-temperature ceramics (HfC ceramics, Hf-Ta-C ceramics, high-entropy ceramics)

Special Issue Information

Dear Colleagues,

Polymer-derived ceramics (PDCs) are a kind of ceramics derived from organic polymers, such as preceramic polymers or ceramic precursors. Generally, preceramic polymers can be shaped using conventional plastic-forming techniques, such as resin transfer molding, injection molding, spinning, etc., and then converted into ceramics with the desired shape and properties via heat treatment in a controlled atmosphere. The composition and structures of ceramic products can be designed by controlling the precursor chemistry and pyrolysis process.

This Special Issue is oriented toward all types of polymer-derived ceramics, innovations in materials, new functions and applications, microstructural tailoring, and the properties (thermal, mechanical, catalytic, electrical, and dielectric properties) of precursors derived from ceramic products (fibers, coatings, films and ceramic matrix composites), as well as studies of the pyrolysis mechanism and process.

Dr. Li Ye
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • preceramic polymers
  • polymer-derived ceramics
  • ceramic matrix composites
  • pyrolysis
  • fibers

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Published Papers (3 papers)

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Research

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15 pages, 3965 KiB  
Article
Development of Inkjet Printable Formulations Based on Polyorganosilazane and Divinylbenzene
by Afnan Qazzazie-Hauser, Kirsten Honnef and Thomas Hanemann
Polymers 2023, 15(23), 4512; https://doi.org/10.3390/polym15234512 - 23 Nov 2023
Viewed by 1620
Abstract
Within this work, ink formulations based on polyorganosilazane (OPSZ) and divinylbenzene (DVB) were developed to be processed by inkjet printing. The formulations were studied regarding their rheological, structural, and thermal properties. The rheological results show that the new formulations meet the requirements of [...] Read more.
Within this work, ink formulations based on polyorganosilazane (OPSZ) and divinylbenzene (DVB) were developed to be processed by inkjet printing. The formulations were studied regarding their rheological, structural, and thermal properties. The rheological results show that the new formulations meet the requirements of the inkjet printer by showing both low viscosity (below 20 mPa∙s at printing temperature) and Newtonian flow behavior even at high shear rates. Additionally, the inks have surface tensions in the range of 21 to 26 mN/m2. First, printing experiments of single layers were successfully conducted and show that the developed formulations can be processed by inkjet printing. The inks were crosslinked by UV light and then pyrolyzed at 1100 °C resulting in a ceramic yield between 75 and 42%, depending on the ink formulation. The crosslinking behavior was studied via FTIR spectroscopy, and the results reveal that crosslinking occurs mainly via free-radical polymerization of the vinyl group. Furthermore, the results indicate that silicon carbonitride (SiCN) was formed after the pyrolysis. The results of the electrical properties of the amorphous ceramics differ in dependence on the amount of DVB in the formulation. A maximum electrical conductivity of 1.2 S/cm−1 was observed for a UV-cured sample with a high amount of DVB pyrolyzed at 1100 °C. The generation in electrical conductivity is given by the formation of free carbon derived most likely by DVB. Full article
(This article belongs to the Special Issue Research and Application of Polymer-Derived Ceramics)
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16 pages, 6679 KiB  
Article
Accessibility and Mechanical Stability of Nanoporous Zinc Oxide and Aluminum Oxide Coatings Synthesized via Infiltration of Polymer Templates
by Khalil D. Omotosho, Zachary Lyon, Elena V. Shevchenko and Diana Berman
Polymers 2023, 15(20), 4088; https://doi.org/10.3390/polym15204088 - 14 Oct 2023
Cited by 1 | Viewed by 1564
Abstract
The conformal nanoporous inorganic coatings with accessible pores that are stable under applied thermal and mechanical stresses represent an important class of materials used in the design of sensors, optical coatings, and biomedical systems. Here, we synthesize porous AlOx and ZnO coatings [...] Read more.
The conformal nanoporous inorganic coatings with accessible pores that are stable under applied thermal and mechanical stresses represent an important class of materials used in the design of sensors, optical coatings, and biomedical systems. Here, we synthesize porous AlOx and ZnO coatings by the sequential infiltration synthesis (SIS) of two types of polymers that enable the design of porous conformal coatings—polymers of intrinsic microporosity (PIM) and block co-polymer (BCP) templates. Using quartz crystal microbalance (QCM), we show that alumina precursors infiltrate both polymer templates four times more efficiently than zinc oxide precursors. Using the quartz crystal microbalance (QCM) technique, we provide a comprehensive study on the room temperature accessibility to water and ethanol of pores in block copolymers (BCPs) and porous polymer templates using polystyrene-block-poly-4-vinyl pyridine (PS75-b-P4VP25) and polymers of intrinsic microporosity (PIM-1), polymer templates modified by swelling, and porous inorganic coatings such as AlOx and ZnO synthesized by SIS using such templates. Importantly, we demonstrate that no structural damage occurs in inorganic nanoporous AlOx and ZnO coatings synthesized via infiltration of the polymer templates during the water freezing/melting cycling tests, suggesting excellent mechanical stability of the coatings, even though the hardness of the inorganic nanoporous coating is affected by the polymer and precursor selections. We show that the hardness of the coatings is further improved by their annealing at 900 °C for 1 h, though for all the cases except ZnO obtained using the BCP template, this annealing has a negligible effect on the porosity of the material, as is confirmed by the consistency in the optical characteristics. These findings unravel new potential for the materials being used across various environment and temperature conditions. Full article
(This article belongs to the Special Issue Research and Application of Polymer-Derived Ceramics)
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Review

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29 pages, 9185 KiB  
Review
Preceramic Polymers for Additive Manufacturing of Silicate Ceramics
by Fateme Sarraf, Sergey V. Churakov and Frank Clemens
Polymers 2023, 15(22), 4360; https://doi.org/10.3390/polym15224360 - 8 Nov 2023
Cited by 3 | Viewed by 2565
Abstract
The utilization of preceramic polymers (PCPs) to produce both oxide and non-oxide ceramics has caught significant interest, owing to their exceptional characteristics. Diverse types of polymer-derived ceramics (PDCs) synthesized by using various PCPs have demonstrated remarkable characteristics such as exceptional thermal stability, resistance [...] Read more.
The utilization of preceramic polymers (PCPs) to produce both oxide and non-oxide ceramics has caught significant interest, owing to their exceptional characteristics. Diverse types of polymer-derived ceramics (PDCs) synthesized by using various PCPs have demonstrated remarkable characteristics such as exceptional thermal stability, resistance to corrosion and oxidation at elevated temperatures, biocompatibility, and notable dielectric properties, among others. The application of additive manufacturing techniques to produce PDCs opens up new opportunities for manufacturing complex and unconventional ceramic structures with complex designs that might be challenging or impossible to achieve using traditional manufacturing methods. This is particularly advantageous in industries like aerospace, automotive, and electronics. In this review, various categories of preceramic polymers employed in the synthesis of polymer-derived ceramics are discussed, with a particular focus on the utilization of polysiloxane and polysilsesquioxanes to generate silicate ceramics. Further, diverse additive manufacturing techniques adopted for the fabrication of polymer-derived silicate ceramics are described. Full article
(This article belongs to the Special Issue Research and Application of Polymer-Derived Ceramics)
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