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1

Chu, Zengyong. "Editorial - Polymer-Derived Ceramics (PDCs)." Open Materials Science Journal 6, no. 1 (April 20, 2012): 22. http://dx.doi.org/10.2174/1874088x01206010022.

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Polymer-derived ceramics (PDCs) are the ceramics derived from preceramic polymers by a pyrolysis process, which makes them much different from those by traditional sintering techniques. The PDCs present a growing interest in the ceramic science for their much suitability in (i) elaborating complex forms (fibers, films, porous ceramics, etc...), (ii) developing ceramic micro/nanostructures, (iii) controlling ultimate compositions and (iv) producing amorphous ceramics stable at ultra-high temperatures. The most attractive point of the PDCs lies in the tailoring the complex microstructure and functional properties easily with the aid of molecular design and polymer synthesis. To some extent, their life energy is rooted in the polymers. In this special issue, papers were organized from a viewpoint of the effect of polymer structures on the functional properties of the PDCs.
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2

Fu, Shengyang, Min Zhu, and Yufang Zhu. "Organosilicon polymer-derived ceramics: An overview." Journal of Advanced Ceramics 8, no. 4 (December 2019): 457–78. http://dx.doi.org/10.1007/s40145-019-0335-3.

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AbstractPolymer-derived ceramics (PDCs) strategy shows a great deal of advantages for the fabrication of advanced ceramics. Organosilicon polymers facilitate the shaping process and different silicon-based ceramics with controllable components can be fabricated by modifying organosilicon polymers or adding fillers. It is worth noting that silicate ceramics can also be fabricated from organosilicon polymers by the introduction of active fillers, which could react with the produced silica during pyrolysis. The organosilicon polymer-derived ceramics show many unique properties, which have attracted many attentions in various fields. This review summarizes the typical organosilicon polymers and the processing of organosilicon polymers to fabricate silicon-based ceramics, especially highlights the three-dimensional (3D) printing technique for shaping the organosilicon polymer- derived ceramics, which makes the possibility to fabricate silicon-based ceramics with complex structure. More importantly, the recent studies on fabricating typical non-oxide and silicate ceramics derived from organosilicon polymers and their biomedical applications are highlighted.
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Savitri, Afridha Cita, Laely Septiya Wati, Nanda Nanda, Navila Nurliani, Maya Erliza Anggraeni, and Marvin Horale Pasaribu. "Article Review: Organosilicon-Based Ceramic Innovation: Polymer-Derived Ceramics (PDCs)." Nusantara Journal of Science and Technology 1, no. 1 (May 30, 2024): 40–54. http://dx.doi.org/10.69959/nujst.v1i1.10.

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Innovation and modern methods in ceramic production, as a transition from conventional/traditional methods, are needed to improve production efficiency and quality. One innovation in the ceramic industry is the polymer-derived ceramic (PDC) technology with the utilization of organosilicon compounds. PDCs are ceramics derived from preceramic organosilicon polymer precursors, which are generally divided into polysiloxane, polycarbosiloxane, polycarbosilane, polysilycarbodimiides, polysilazane, polyborosilazanes, polyborosilanes, and polyborosiloxanes. The transformation of organosilicon polymers into ceramics is carried out through four stages: shaping, cross-linking, pyrolysis, and ceramization. PDCs have high-temperature resistance properties, making them suitable for various applications in extreme environments. The forms of PDC applications are as semiconductors, sensors, coating/membranes, and fibers.
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4

Sarraf, Fateme, Sergey V. Churakov, and Frank Clemens. "Preceramic Polymers for Additive Manufacturing of Silicate Ceramics." Polymers 15, no. 22 (November 8, 2023): 4360. http://dx.doi.org/10.3390/polym15224360.

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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.
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5

He, Jiabei, Mengshan Song, Kaiyun Chen, Dongxiao Kan, and Miaomiao Zhu. "Polymer-Derived Ceramics Technology: Characteristics, Procedure, Product Structures, and Properties, and Development of the Technology in High-Entropy Ceramics." Crystals 12, no. 9 (September 13, 2022): 1292. http://dx.doi.org/10.3390/cryst12091292.

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Ceramics have become indispensable materials for a wide range of industrial applications due to their excellent properties. However, the traditional preparation of ceramic materials is often time-consuming and involves high sintering temperatures. These result in considerable energy consumption and high production costs, which limit the application of these materials in some industries. This paper focuses on the advent of polymer-derived ceramics (PDCs) technology, which enabled the application of ceramics to fibers, composites, coatings, and films, mainly due to the excellent design, process, and low-temperature ceramic properties. We review and evaluate the important research progress made in polymer-derived ceramics technology in recent years and discuss its recent development into high-entropy ceramics. The development of polymer-derived ceramics technology in the field of high-entropy ceramics has broad research prospects, which can greatly improve the understanding and design of high-entropy materials and accelerate their application in the industrial field.
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6

Vakifahmetoglu, Cekdar, Damla Zeydanli, and Paolo Colombo. "Porous polymer derived ceramics." Materials Science and Engineering: R: Reports 106 (August 2016): 1–30. http://dx.doi.org/10.1016/j.mser.2016.05.001.

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7

Kroll, Peter. "Modelling polymer-derived ceramics." Journal of the European Ceramic Society 25, no. 2-3 (January 2005): 163–74. http://dx.doi.org/10.1016/j.jeurceramsoc.2004.07.012.

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8

Greil, P. "Polymer Derived Engineering Ceramics." Advanced Engineering Materials 2, no. 6 (June 2000): 339–48. http://dx.doi.org/10.1002/1527-2648(200006)2:6<339::aid-adem339>3.0.co;2-k.

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9

Wen, Qingbo, Fangmu Qu, Zhaoju Yu, Magdalena Graczyk-Zajac, Xiang Xiong, and Ralf Riedel. "Si-based polymer-derived ceramics for energy conversion and storage." Journal of Advanced Ceramics 11, no. 2 (January 11, 2022): 197–246. http://dx.doi.org/10.1007/s40145-021-0562-2.

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AbstractSince the 1960s, a new class of Si-based advanced ceramics called polymer-derived ceramics (PDCs) has been widely reported because of their unique capabilities to produce various ceramic materials (e.g., ceramic fibers, ceramic matrix composites, foams, films, and coatings) and their versatile applications. Particularly, due to their promising structural and functional properties for energy conversion and storage, the applications of PDCs in these fields have attracted much attention in recent years. This review highlights the recent progress in the PDC field with the focus on energy conversion and storage applications. Firstly, a brief introduction of the Si-based polymer-derived ceramics in terms of synthesis, processing, and microstructure characterization is provided, followed by a summary of PDCs used in energy conversion systems (mainly in gas turbine engines), including fundamentals and material issues, ceramic matrix composites, ceramic fibers, thermal and environmental barrier coatings, as well as high-temperature sensors. Subsequently, applications of PDCs in the field of energy storage are reviewed with a strong focus on anode materials for lithium and sodium ion batteries. The possible applications of the PDCs in Li-S batteries, supercapacitors, and fuel cells are discussed as well. Finally, a summary of the reported applications and perspectives for future research with PDCs are presented.
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10

Zeschky, J. "Preceramic polymer derived cellular ceramics." Composites Science and Technology 63, no. 16 (December 2003): 2361–70. http://dx.doi.org/10.1016/s0266-3538(03)00269-0.

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11

Kaindl, Annette, Wolfgang Lehner, Peter Greil, and Deug Joong Kim. "Polymer-filler derived Mo2C ceramics." Materials Science and Engineering: A 260, no. 1-2 (February 1999): 101–7. http://dx.doi.org/10.1016/s0921-5093(98)00987-3.

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12

Colombo, Paolo, and Günter Motz. "Applications of polymer derived ceramics." Advances in Applied Ceramics 108, no. 8 (November 2009): 453. http://dx.doi.org/10.1179/174367509x12554402491100.

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13

Schlier, Lorenz, Martin Steinau, Nahum Travitzky, Juergen Gegner, and Peter Greil. "Ferrosilicochromium-Filled Polymer-Derived Ceramics." International Journal of Applied Ceramic Technology 8, no. 6 (March 24, 2011): 1509–16. http://dx.doi.org/10.1111/j.1744-7402.2011.02616.x.

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14

Zhang, Li Gong, Yan Song Wang, and Li Nan An. "Piezoresistivity of Polymer-Derived AlSiCN Ceramics." Applied Mechanics and Materials 423-426 (September 2013): 89–92. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.89.

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The conductivity of amorphous AlSiCN ceramics derived from polymer pyrolysis were investigated under applying stress. A huge gauge factor was observed, just as that of SiCN ceramics with a proper thermal initiator, and their piezoresistivity are a strong sensitive to stress applied. The high piezoresistivity effect and sensitivity to stress are due to compositional and mechanical properties of polymer derived AlSiCN ceramics.
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15

Greil, Peter. "Advancements in Polymer-Filler Derived Ceramics." Journal of the Korean Ceramic Society 49, no. 4 (July 31, 2012): 279–86. http://dx.doi.org/10.4191/kcers.2012.49.4.279.

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16

Wang, Yiguang, Linan An, Yi Fan, Ligong Zhang, Sarah Burton, and Zhehong Gan. "Oxidation of Polymer-Derived SiAlCN Ceramics." Journal of the American Ceramic Society 88, no. 11 (November 2005): 3075–80. http://dx.doi.org/10.1111/j.1551-2916.2005.00542.x.

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17

Eckel, Z. C., C. Zhou, J. H. Martin, A. J. Jacobsen, W. B. Carter, and T. A. Schaedler. "Additive manufacturing of polymer-derived ceramics." Science 351, no. 6268 (December 31, 2015): 58–62. http://dx.doi.org/10.1126/science.aad2688.

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18

Scheffler, M., O. Dernovsek, D. Schwarze, A. H. A. Bressiani, J. C. Bressiani, W. Acchar, and P. Greil. "Polymer/filler derived NbC composite ceramics." Journal of Materials Science 38, no. 24 (December 2003): 4925–31. http://dx.doi.org/10.1023/b:jmsc.0000004415.23316.b0.

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19

Colombo, Paolo. "Engineering porosity in polymer-derived ceramics." Journal of the European Ceramic Society 28, no. 7 (January 2008): 1389–95. http://dx.doi.org/10.1016/j.jeurceramsoc.2007.12.002.

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20

Torrey, Jessica D., and Rajendra K. Bordia. "Phase and microstructural evolution in polymer-derived composite systems and coatings." Journal of Materials Research 22, no. 7 (July 2007): 1959–66. http://dx.doi.org/10.1557/jmr.2007.0246.

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Polymer-derived ceramics have shown promise as a novel way to process low-dimensional ceramics such as environmental barrier coatings. Composite coatings have been developed as oxidation and carburization barriers on steel using poly(hydridomethylsiloxane) matrix and titanium disilicide as reactive fillers. A systematic study of the phase transformations and microstructural changes in the coatings and their components during pyrolysis in air is presented here. The system evolves from an amorphous polymer filled with a binary metal at room temperature to an inorganic amorphous network of oxidized silicon and titanium at the target temperature of 800 °C. Crystallization of the composite occurs at higher temperatures to reach cristobalite and rutile by 1600 °C. The polymer-to-ceramic conversion occurs between 200 and 600 °C. The oxidation of the expansion agent and the densification of the composite take place between 300 and 800 °C.
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21

Almeataq, Mohammed S., and Eid M. Alosime. "Synthesis Based on a Preceramic Polymer and Alumina Nanoparticles via UV Lithography for High Temperature Applications." Materials 13, no. 5 (March 4, 2020): 1140. http://dx.doi.org/10.3390/ma13051140.

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Because of the increased demand for preceramic polymers in high-tech applications, there has been growing interest in the synthesis of preceramic polymers, including polysiloxanes and alumina. These polymers are preferred because of their low thermal expansion, conformability to surfaces over large areas, and flexibility. The primary objective was to evaluate the aspects of polymer-derived ceramic routs, focusing on the UV lithography process of preceramic polymers and the pyrolyzing properties of the final ceramics. We found that the p(DMS-co-AMS) copolymer was effective in scattering the hydrophilic Al2O3 nanoparticles into the exceedingly hydrophobic solvent. The physico-chemical behavior of characterized copolymers was explored during their pyrolytic transformation into amorphous silicon-based ceramics. The results indicate that an increase of the pyrolysis temperature degraded the Si–O network through the carbothermic reaction of silicon. We also found a rapid elimination of copolymer pores and densification when the temperature increased (1100 to 1200 °C). At different but specific temperature ranges, there are different distinct rearrangement reactions in the conversion of polymer to ceramic; reductions of the melting point (Tm) of the total heat of melting (ΔHm) of the pyrolysis process resulted in the crystallization of ceramic materials; hence, lithography based on pyrolysis properties of preceramic polymers is a critical method in the conversation of polymers.
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22

Han, Jinchen, Chang Liu, Robyn L. Bradford-Vialva, Donald A. Klosterman, and Li Cao. "Additive Manufacturing of Advanced Ceramics Using Preceramic Polymers." Materials 16, no. 13 (June 27, 2023): 4636. http://dx.doi.org/10.3390/ma16134636.

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Ceramic materials are used in various industrial applications, as they possess exceptional physical, chemical, thermal, mechanical, electrical, magnetic, and optical properties. Ceramic structural components, especially those with highly complex structures and shapes, are difficult to fabricate with conventional methods, such as sintering and hot isostatic pressing (HIP). The use of preceramic polymers has many advantages, such as excellent processibility, easy shape change, and tailorable composition for fabricating high-performance ceramic components. Additive manufacturing (AM) is an evolving manufacturing technique that can be used to construct complex and intricate structural components. Integrating polymer-derived ceramics and AM techniques has drawn significant attention, as it overcomes the limitations and challenges of conventional fabrication approaches. This review discusses the current research that used AM technologies to fabricate ceramic articles from preceramic feedstock materials, and it demonstrates that AM processes are effective and versatile approaches for fabricating ceramic components. The future of producing ceramics using preceramic feedstock materials for AM processes is also discussed at the end.
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23

Ren, Zhongkan, Shakir Bin Mujib, and Gurpreet Singh. "High-Temperature Properties and Applications of Si-Based Polymer-Derived Ceramics: A Review." Materials 14, no. 3 (January 29, 2021): 614. http://dx.doi.org/10.3390/ma14030614.

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Ceramics derived from organic polymer precursors, which have exceptional mechanical and chemical properties that are stable up to temperatures slightly below 2000 °C, are referred to as polymer-derived ceramics (PDCs). These molecularly designed amorphous ceramics have the same high mechanical and chemical properties as conventional powder-based ceramics, but they also demonstrate improved oxidation resistance and creep resistance and low pyrolysis temperature. Since the early 1970s, PDCs have attracted widespread attention due to their unique microstructures, and the benefits of polymeric precursors for advanced manufacturing techniques. Depending on various doping elements, molecular configurations, and microstructures, PDCs may also be beneficial for electrochemical applications at elevated temperatures that exceed the applicability of other materials. However, the microstructural evolution, or the conversion, segregation, and decomposition of amorphous nanodomain structures, decreases the reliability of PDC products at temperatures above 1400 °C. This review investigates structure-related properties of PDC products at elevated temperatures close to or higher than 1000 °C, including manufacturing production, and challenges of high-temperature PDCs. Analysis and future outlook of high-temperature structural and electrical applications, such as fibers, ceramic matrix composites (CMCs), microelectromechanical systems (MEMSs), and sensors, within high-temperature regimes are also discussed.
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24

Greil, Peter. "Polymer-Filler Derived Ceramics with Hierarchial Microstructures." Key Engineering Materials 159-160 (May 1998): 339–46. http://dx.doi.org/10.4028/www.scientific.net/kem.159-160.339.

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25

Ma, Ruixin, Donald Erb, and Kathy Lu. "Flash pyrolysis of polymer-derived SiOC ceramics." Journal of the European Ceramic Society 38, no. 15 (December 2018): 4906–14. http://dx.doi.org/10.1016/j.jeurceramsoc.2018.07.010.

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Zhou, Shixiang, Hui Mei, Peng Chang, Mingyang Lu, and Laifei Cheng. "Molecule editable 3D printed polymer-derived ceramics." Coordination Chemistry Reviews 422 (November 2020): 213486. http://dx.doi.org/10.1016/j.ccr.2020.213486.

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27

Tang, Yun, Jun Wang, Xiaodong Li, Wenhua Li, Hao Wang, and Xiaozhou Wang. "Thermal stability of polymer derived SiBNC ceramics." Ceramics International 35, no. 7 (September 2009): 2871–76. http://dx.doi.org/10.1016/j.ceramint.2009.03.043.

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28

Steinau, M., N. Travitzky, J. Gegner, J. Hofmann, and P. Greil. "Polymer-Derived Ceramics for Advanced Bearing Applications." Advanced Engineering Materials 10, no. 12 (December 2008): 1141–46. http://dx.doi.org/10.1002/adem.200800194.

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29

Xia, Aidong, Jie Yin, Xiao Chen, Xuejian Liu, and Zhengren Huang. "Polymer-Derived Si-Based Ceramics: Recent Developments and Perspectives." Crystals 10, no. 9 (September 16, 2020): 824. http://dx.doi.org/10.3390/cryst10090824.

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Polymer derived ceramics (PDCs) are promising candidates for usages as the functionalization of inorganic Si-based materials. Compared with traditional ceramics preparation methods, it is easier to prepare and functionalize ceramics with complex shapes by using the PDCs technique, thereby broadening the application fields of inorganic Si-based ceramics. In this article, we summarized the research progress and the trends of PDCs in recent years, especially most recent three years. Fabrication techniques (traditional preparation, 3D printing, template method, freezing casting techniques, etc.), microstructural tailoring mainly via additive doping, and properties (mechanical, thermal, electrical, as well as dielectric and electromagnetic wave absorption properties) of Si-based PDCs were explicated. Meanwhile, challenges and perspectives for PDCs techniques were proposed as well, with the purpose to enlighten multiple functionalized applications of polymer-derived Si-based ceramics.
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Costa, Beatriz, Maria de Silva, César Ricardo Tarley, Emerson Ribeiro, and Mariana Segatelli. "Influence of polymer synthesis route and organic fraction content on structure and porosity of silicon oxycarbide ceramics." Processing and Application of Ceramics 17, no. 2 (2023): 118–32. http://dx.doi.org/10.2298/pac2302118c.

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This paper describes the structural and textural characteristics of silicon oxycarbide ceramics obtained from three different hybrid polymers by varying pyrolysis temperature. The first polymer was prepared by hydrosilylation between poly(hydromethylsiloxane) and divinylbenzene in stoichiometric proportions; the second was similarly obtained, but with excess of divinylbenzene (60 wt.%) and the third was also synthesized with 60 wt.% divinylbenzene, involving simultaneously hydrosilylation and radical reactions. Precursors were pyrolysed under argon at 1000, 1200 and 1500?C to produce silicon oxycarbide-based ceramics. Silicon carbide phase development and devitrification resistance were influenced by the disordered and ordered residual carbon fraction, which was directly related to the polymer structure. High specific surface area and pore volume values were obtained in C-richer ceramics at 1500?C derived from poly(divinylbenzene) network-containing precursor. Silicon oxycarbide matrices, derived from hybrid polymers containing graphitic carbon and silicon carbide phases together with different amount of porosity, revealed desirable features for electrochemical applications and adsorbent systems.
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31

Kim, Young Wook, Doo Hee Jang, Jung Hye Eom, In Hyuck Song, and Hai Doo Kim. "Processing of Polymer-Derived Microcellular Ceramics Containing Reactive Fillers." Materials Science Forum 534-536 (January 2007): 989–92. http://dx.doi.org/10.4028/www.scientific.net/msf.534-536.989.

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Processing techniques for producing microcellular silicon carbide, mullite, and cordierite ceramics with cell densities greater than 108 cells/cm3 and cells smaller than 30 μm have been developed by a reaction method that incorporates a polysiloxane and reactive fillers. The techniques developed in this study offer substantial flexibility for producing microcellular ceramics whereby cell size, cell density, degree of interconnectivity, composition, and porosity can all be effectively controlled. It is demonstrated that the adjustment of filler composition enables the possibility of tailoring the composition and properties of the microcellular ceramics. The present results suggest that the proposed novel processing techniques are suitable for the manufacture of microcellular ceramics with high morphological uniformity.
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32

Jones, R., A. Szweda, and D. Petrak. "Polymer derived ceramic matrix composites." Composites Part A: Applied Science and Manufacturing 30, no. 4 (April 1999): 569–75. http://dx.doi.org/10.1016/s1359-835x(98)00151-1.

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33

Tong, Dejin, Haipeng Wang, Lei Chen, Lei Wang, and Zhanxiong Li. "A novel carborane-containing ceramic precursor: Synthesis, characterization, and ceramic conversion mechanism." High Performance Polymers 31, no. 6 (July 17, 2018): 694–706. http://dx.doi.org/10.1177/0954008318788389.

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Linear carborane-carbosilane-phenylacetylene polymers have been synthesized as precursors for ceramic and characterized by Fourier transform infrared (FT-IR), proton nuclear magnetic resonance (1H-NMR), and carbon-nuclear magnetic resonance (13C-NMR). Novel linear polymers have the advantage of being extremely easy to process and convert into ceramics, since they are either viscous liquids or low melting solids at room temperature and are soluble in most organic solvents. Ceramic conversion reaction of the polymers was studied, and the conversion mechanism using thermogravimetric analyzer, FT-IR, and pyrolysis-gas chromatography-mass spectrometry was proposed. During the early heating period in the mechanism, the precursor polymer is cured and oligomer is formed. Then the degradation of oligomer takes place at higher temperatures with the weak bond cleaved and cross-linked simultaneously. Ceramic yield of the polymer after heating up to 1000°C in nitrogen (N2) was 77.6%. The derived ceramics exhibit excellent thermal and thermo-oxidative stability, whose 5% mass loss temperature was identified to be 650°C in N2 and 665°C in air, respectively. Boron appears to be the key element to achieve the outstanding thermo-oxidative stability. The relevant kinetic data were obtained by two kinds of model-free-kinetic algorithms, differential Friedman and integral Kissinger–Akahira–Sunose. These two methods were combined to give the energy profile, which has been identified to be a function of the transformation degree ( α), since the energy demand at each degradation stage is different depending on α.
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34

Jothi, Sudagar, Sujith Ravindran, and Ravi Kumar. "Corrosion of Polymer-Derived Ceramics in Hydrofluoric Acid and Sodium Salts." Advances in Science and Technology 89 (October 2014): 82–87. http://dx.doi.org/10.4028/www.scientific.net/ast.89.82.

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Corrosion behavior of polymer-derived ceramics (PDCs) was investigated in aqueous hydrofluoric acid (HF) and sodium salts (NaCl or Na2SO4). Two oxides (SiCO and SiCNO-(Hf)) and two non-oxide PDCs (SiCN and SiCN-(B)) were examined in this study. The HF acid corroded the oxide PDCs, whereas non-oxide PDCs resisted acid corrosion. Nevertheless, the degradation is slow in some cases to extend the engineering ceramic materials lifespans. The PDCs composites were hot corroded by NaCl or Na2SO4. The Na-salt attacked the PDCs, producing corrosion layers. The cross-sectional X-ray elemental analysis and microstructure surveillance exhibited that the corroded layers comprised of distinct regions. The corrosion mechanism is discussed in line with the experimental discoveries.
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35

Liu, Hongli, Guoqing An, Hongyan Li, Zhong Chen, Jing Li, and Yajing Li. "SiBCN-ZrO2 hybrid ceramic aerogels through the polymer-derived ceramics (PDCs) route." Ceramics International 44, no. 18 (December 2018): 22991–96. http://dx.doi.org/10.1016/j.ceramint.2018.09.098.

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36

Choudhary, Abhisek, Swadesh K. Pratihar, and Shantanu K. Behera. "Hierarchically porous biomorphic polymer derived C–SiOC ceramics." RSC Advances 6, no. 98 (2016): 95897–902. http://dx.doi.org/10.1039/c6ra21206a.

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Pinewood derived carbon templates were infiltrated with preceramic polymers and pyrolyzed in inert atmosphere to fabricate hierarchically porous biomorphic silicon oxycarbide amorphous ceramics with ∼80% porosity.
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37

Golczewski, Jerzy Andrzej. "Thermodynamic analysis of structural transformations induced by annealing of amorphous Si–C–N ceramics derived from polymer precursors." International Journal of Materials Research 97, no. 6 (June 1, 2006): 729–36. http://dx.doi.org/10.1515/ijmr-2006-0118.

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Abstract Thermodynamic modeling has been used to explain structural transformations induced by heat treatment of amorphous Si –C–N ceramics derived from polymers. Nanocrystalline silicon carbide and nanocrystalline silicon nitride identified in the ceramic microstructure have been regarded as metastable NASIC and NASIN phases in the Si–C–N system. The Gibbs energies G(NASIC) and G(NASIN) have been derived and used together with the previously modeled Gibbs energy of the amorphous am-SICN to compute metastable phase diagrams. Computational results allow explanation of the crystallization process of amorphous Si –C–N ceramics. According to this model, the temperature of invariant reaction between carbon and silicon nitride changes with the growth of nanocrystallites, which explains the dependence of the thermal stability on the ceramic microstructure.
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38

Song, In-Hyuck, Young-Mi Kim, Hai-Doo Kim, and Young-Wook Kim. "Synthesis of Microcellular Cordierite Ceramics Derived from a Preceramic Polymer." Journal of the Korean Ceramic Society 44, no. 5 (May 31, 2007): 184–89. http://dx.doi.org/10.4191/kcers.2007.44.5.184.

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39

Durán, A., M. Aparicio, K. Rebstock, and W. D. Vogel. "Reinfiltration Processes for Polymer Derived Fiber Reinforced Ceramics." Key Engineering Materials 127-131 (November 1996): 287–94. http://dx.doi.org/10.4028/www.scientific.net/kem.127-131.287.

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40

Greil, Peter. "Near Net Shape Manufacturing of Polymer Derived Ceramics." Key Engineering Materials 132-136 (April 1997): 1981–84. http://dx.doi.org/10.4028/www.scientific.net/kem.132-136.1981.

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41

Sanchez-Jimenez, Pedro E., and Rishi Raj. "Lithium Insertion in Polymer-Derived Silicon Oxycarbide Ceramics." Journal of the American Ceramic Society 93, no. 4 (April 2010): 1127–35. http://dx.doi.org/10.1111/j.1551-2916.2009.03539.x.

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42

Greil, Peter. "Near Net Shape Manufacturing of Polymer Derived Ceramics." Journal of the European Ceramic Society 18, no. 13 (November 1998): 1905–14. http://dx.doi.org/10.1016/s0955-2219(98)00129-0.

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43

Aytimur, Arda, İbrahim Uslu, Şenol Durmuşoğlu, and Ahmet Akdemir. "Polymer-derived yttria stabilized bismuth oxide nanocrystalline ceramics." Ceramics International 40, no. 8 (September 2014): 12899–903. http://dx.doi.org/10.1016/j.ceramint.2014.04.149.

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44

Guo, Xue, Yurun Feng, Haibin Sun, and Qiangqiang Hu. "Novel electromagnetic metamaterial: Polymer-derived SiCN(Fe) ceramics." Ceramics International 46, no. 17 (December 2020): 27634–40. http://dx.doi.org/10.1016/j.ceramint.2020.07.258.

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45

Duan, Hongxu, Cheng Li, Weiwei Yang, Brandon Lojewski, Linan An, and Weiwei Deng. "Near-Field Electrospray Microprinting of Polymer-Derived Ceramics." Journal of Microelectromechanical Systems 22, no. 1 (February 2013): 1–3. http://dx.doi.org/10.1109/jmems.2012.2226932.

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46

Cao, Yejie, Xueping Yang, Ran Zhao, Yaohan Chen, Ni Li, and Linan An. "Giant piezoresistivity in polymer-derived amorphous SiAlCO ceramics." Journal of Materials Science 51, no. 12 (March 7, 2016): 5646–50. http://dx.doi.org/10.1007/s10853-016-9866-y.

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47

Hundley, Jacob M., Zak C. Eckel, Emily Schueller, Kenneth Cante, Scott M. Biesboer, Brennan D. Yahata, and Tobias A. Schaedler. "Geometric characterization of additively manufactured polymer derived ceramics." Additive Manufacturing 18 (December 2017): 95–102. http://dx.doi.org/10.1016/j.addma.2017.08.009.

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48

Choudhary, Abhisek, Ashish K. Agrawal, Swadesh K. Pratihar, Balwant Singh, and Shantanu K. Behera. "Synchrotron Microtomography of Polymer Derived Macroporous SiOC Ceramics." Advanced Engineering Materials 21, no. 7 (April 15, 2019): 1900172. http://dx.doi.org/10.1002/adem.201900172.

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49

Su, Dong, Xiao Yan, and Feng Hou. "Fabrication of Macroporous SiCN Ceramics from Mixed Polysilazanes." Key Engineering Materials 602-603 (March 2014): 384–87. http://dx.doi.org/10.4028/www.scientific.net/kem.602-603.384.

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Abstract:
Macroporous polymer-derived SiCN ceramics are fabricated directly by mixing polysilazane precursors followed with crosslinking and pyrolysis. Two kinds of polysilazanes namely polyvinylsilazane and polyhydrosilazane are mixed, crosslinked by 2, 2-Azo-bis-isobutyronitrile to form resins before pyrolyzed to form ceramics in argon flow at 1000°C. The density of the SiCN ceramic is 1.65 g/cm3 with corresponding porosity of 30 % compared to dense SiCN ceramics. SEM images show that the ceramics possess high porosity and homogeneous honeycomb-like macropores of ~2 μm. The porous SiCN exhibits good mechanical property with Vicker hardness of 11-13 GPa under a load of 0.2 kg.
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50

Gou, Yan Zi, Xuan Tong, Qian Ce Zhang, Qi Shi, and Bing Wang. "Synthesis of Iron-Containing Preceramic Polymer and Preparation of Fe/Si/C Ceramics via Precursor-Derived Method." Materials Science Forum 852 (April 2016): 733–39. http://dx.doi.org/10.4028/www.scientific.net/msf.852.733.

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Abstract:
Iron-containing SiC ceramics have low specific resistivity and excellent electromagnetic properties. In this work, hyperbranched polyferrocenylsilane as the precursor of Fe/Si/C ceramics was prepared by the reaction of ferrocenyl dilithium, dichlorodimethylsilane and trichloromethylsilane. The ceramization process of the preceramic polymer from organic to inorganic was then investigated. Precursor microspheres were prepared by emulsion method, which were then pyrolyzed to obtain Fe/Si/C ceramic microspheres.The composition, structure and morphologies of the precursor and ceramics were characterized by 1H-NMR, FT-IR, TG-MS, XRD, SEM and EDS. Experimental results showed that the hyperbranched precursor was successfully synthesized, the pyrolytic process of which started at 350 °Cand almost completed above 600 °C. There was crystalline transformation from Fe5Si3 to Fe3Si as the sintering temperature increased from 1000 °C to 1400 °C. Moreover, the crystalline phase of β-SiC appeared at 1400 °C. Precursor microspheres were prepared by emulsion method. Porous ceramic microspheres were obtained after the precursor microspheres being sintered at 1400 °C, which can be applied in gas adsorption and catalyst supports.
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