Preparation and characterization of polymer-derived Zr/Si/C multiphase ceramics and microspheres with electromagnetic wave absorbing capabilities

Qiance Zhang; Yanzi Gou; Jinlong Wang; Hao Wang; Ke Jian; Yifei Wang

doi:10.1016/j.jeurceramsoc.2017.01.006

Preparation and characterization of polymer-derived Zr/Si/C multiphase ceramics and microspheres with electromagnetic wave absorbing capabilities

Qiance Zhang
, Yanzi Gou^*
, Jinlong Wang
, Hao Wang
, Ke Jian
, Yifei Wang

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

42 Citations (Scopus)

Abstract

Precursors for Zr/Si/C multiphase ceramics were synthesized by the reactions of dilithiozirconocene complex with dichlorodimethylsilane, methyltrichlorosilane and dichloromethylvinylsilane, respectively. The precursor-to-ceramic process of the precursor was investigated by TG-GC–MS and TG-FTIR analyses, confirming a complete transformation from organometallic polymers into ceramics below 800 °C. Annealing experiments of the derived ceramics at temperatures from 1000 °C to 2000 °C indicated the crystallization from ZrSiO₄, ZrO₂ to ZrC. Furthermore, micrometer-sized Zr/Si/C ceramic microspheres were successfully fabricated from the precursor at 1000 °C, showing surface morphology like wrinkled pea. According to the XRD, HRTEM and XPS analyses, such multiphase ceramic microspheres consist of ZrSiO₄, ZrO₂, and amorphous SiO_xC_y. Interestingly, the ceramic microspheres performed satisfactory electromagnetic wave absorbing capacity with the RL_max reaching −34 dB, which could be potential candidates for electromagnetic micro-devices.

Original language	English
Pages (from-to)	1909-1916
Number of pages	8
Journal	Journal of the European Ceramic Society
Volume	37
Issue number	5
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2017.01.006
Publication status	Published - 1 May 2017

Bibliographical note

Funding Information:
The work is financially supported by National Natural Science Foundation of China (Grant No. 51302313). The authors are grateful to Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province and Aid Program for Innovative Group of National University of Defense Technology.

Publisher Copyright:
© 2017 Elsevier Ltd

Keywords

Electromagnetic wave absorption
Microspheres
Polymer-derived ceramics
Zr/Si/C

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title = "Preparation and characterization of polymer-derived Zr/Si/C multiphase ceramics and microspheres with electromagnetic wave absorbing capabilities",

abstract = "Precursors for Zr/Si/C multiphase ceramics were synthesized by the reactions of dilithiozirconocene complex with dichlorodimethylsilane, methyltrichlorosilane and dichloromethylvinylsilane, respectively. The precursor-to-ceramic process of the precursor was investigated by TG-GC–MS and TG-FTIR analyses, confirming a complete transformation from organometallic polymers into ceramics below 800 °C. Annealing experiments of the derived ceramics at temperatures from 1000 °C to 2000 °C indicated the crystallization from ZrSiO4, ZrO2 to ZrC. Furthermore, micrometer-sized Zr/Si/C ceramic microspheres were successfully fabricated from the precursor at 1000 °C, showing surface morphology like wrinkled pea. According to the XRD, HRTEM and XPS analyses, such multiphase ceramic microspheres consist of ZrSiO4, ZrO2, and amorphous SiOxCy. Interestingly, the ceramic microspheres performed satisfactory electromagnetic wave absorbing capacity with the RLmax reaching −34 dB, which could be potential candidates for electromagnetic micro-devices.",

keywords = "Electromagnetic wave absorption, Microspheres, Polymer-derived ceramics, Zr/Si/C",

author = "Qiance Zhang and Yanzi Gou and Jinlong Wang and Hao Wang and Ke Jian and Yifei Wang",

note = "Funding Information: The work is financially supported by National Natural Science Foundation of China (Grant No. 51302313). The authors are grateful to Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province and Aid Program for Innovative Group of National University of Defense Technology. Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

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doi = "10.1016/j.jeurceramsoc.2017.01.006",

language = "English",

volume = "37",

pages = "1909--1916",

journal = "Journal of the European Ceramic Society",

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Preparation and characterization of polymer-derived Zr/Si/C multiphase ceramics and microspheres with electromagnetic wave absorbing capabilities. / Zhang, Qiance; Gou, Yanzi; Wang, Jinlong et al.
In: Journal of the European Ceramic Society, Vol. 37, No. 5, 01.05.2017, p. 1909-1916.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

TY - JOUR

T1 - Preparation and characterization of polymer-derived Zr/Si/C multiphase ceramics and microspheres with electromagnetic wave absorbing capabilities

AU - Zhang, Qiance

AU - Gou, Yanzi

AU - Wang, Jinlong

AU - Wang, Hao

AU - Jian, Ke

AU - Wang, Yifei

N1 - Funding Information: The work is financially supported by National Natural Science Foundation of China (Grant No. 51302313). The authors are grateful to Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province and Aid Program for Innovative Group of National University of Defense Technology. Publisher Copyright: © 2017 Elsevier Ltd

PY - 2017/5/1

Y1 - 2017/5/1

N2 - Precursors for Zr/Si/C multiphase ceramics were synthesized by the reactions of dilithiozirconocene complex with dichlorodimethylsilane, methyltrichlorosilane and dichloromethylvinylsilane, respectively. The precursor-to-ceramic process of the precursor was investigated by TG-GC–MS and TG-FTIR analyses, confirming a complete transformation from organometallic polymers into ceramics below 800 °C. Annealing experiments of the derived ceramics at temperatures from 1000 °C to 2000 °C indicated the crystallization from ZrSiO4, ZrO2 to ZrC. Furthermore, micrometer-sized Zr/Si/C ceramic microspheres were successfully fabricated from the precursor at 1000 °C, showing surface morphology like wrinkled pea. According to the XRD, HRTEM and XPS analyses, such multiphase ceramic microspheres consist of ZrSiO4, ZrO2, and amorphous SiOxCy. Interestingly, the ceramic microspheres performed satisfactory electromagnetic wave absorbing capacity with the RLmax reaching −34 dB, which could be potential candidates for electromagnetic micro-devices.

AB - Precursors for Zr/Si/C multiphase ceramics were synthesized by the reactions of dilithiozirconocene complex with dichlorodimethylsilane, methyltrichlorosilane and dichloromethylvinylsilane, respectively. The precursor-to-ceramic process of the precursor was investigated by TG-GC–MS and TG-FTIR analyses, confirming a complete transformation from organometallic polymers into ceramics below 800 °C. Annealing experiments of the derived ceramics at temperatures from 1000 °C to 2000 °C indicated the crystallization from ZrSiO4, ZrO2 to ZrC. Furthermore, micrometer-sized Zr/Si/C ceramic microspheres were successfully fabricated from the precursor at 1000 °C, showing surface morphology like wrinkled pea. According to the XRD, HRTEM and XPS analyses, such multiphase ceramic microspheres consist of ZrSiO4, ZrO2, and amorphous SiOxCy. Interestingly, the ceramic microspheres performed satisfactory electromagnetic wave absorbing capacity with the RLmax reaching −34 dB, which could be potential candidates for electromagnetic micro-devices.

KW - Electromagnetic wave absorption

KW - Microspheres

KW - Polymer-derived ceramics

KW - Zr/Si/C

UR - https://www.scopus.com/pages/publications/85009804196

U2 - 10.1016/j.jeurceramsoc.2017.01.006

DO - 10.1016/j.jeurceramsoc.2017.01.006

M3 - Article (Academic Journal)

SN - 0955-2219

VL - 37

SP - 1909

EP - 1916

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 5

ER -

Preparation and characterization of polymer-derived Zr/Si/C multiphase ceramics and microspheres with electromagnetic wave absorbing capabilities

Abstract

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Keywords

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