Ultralight and Resilient Bicontinuous Si3N4/SiC Nanowire Network for Tunable and Highly Efficient Electromagnetic Wave Absorption in Extreme Conditions
Abstract Developing tunable and highly efficient electromagnetic wave (EMW) absorbers with low density is crucial for the development of wireless telecommunications devices in extreme conditions. SiC ceramic has received much attention because of its dielectric tenability, low density, and chemical...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2022-12-01
|
| Series: | Advanced Materials Interfaces |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/admi.202201553 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1839639491271196672 |
|---|---|
| author | Zhixin Cai Lei Su Min Niu Lei Wang Zhentao Ni Hongjie Wang Kang Peng Lei Zhuang |
| author_facet | Zhixin Cai Lei Su Min Niu Lei Wang Zhentao Ni Hongjie Wang Kang Peng Lei Zhuang |
| author_sort | Zhixin Cai |
| collection | DOAJ |
| description | Abstract Developing tunable and highly efficient electromagnetic wave (EMW) absorbers with low density is crucial for the development of wireless telecommunications devices in extreme conditions. SiC ceramic has received much attention because of its dielectric tenability, low density, and chemical stability. However, the present SiC‐based materials usually show limited EMW absorbing performance than they are expected. Herein, an ultralight and resilient bicontinuous Si3N4/SiC network (8 mg cm−3) composed of EMW‐transparent Si3N4 microbelts and EMW‐absorption SiC nanowires is designed and prepared to achieve improved impedance matching and EMW attenuation capacity. The optimized bicontinuous network exhibits a broad effective absorption bandwidth of 8.62 GHz and a strong RLmin of −52.31 dB. Furthermore, the resulting bicontinuous Si3N4/SiC network, with thickness of 6 mm, shows a tunable absorption bandwidth ranging from 5.36 to 18 GHz by resilient action. It also exhibits excellent thermal stability (up to 1000 °C), thermal shock resistance (from −196 to 900 °C), and thermal insulation performance (32 Mw m−1 K−1), enabling it to be an ideal candidate for EMW absorption in extreme environments. |
| format | Article |
| id | doaj-art-ac2d6faf3b6542488f51d2bc272f7b74 |
| institution | Matheson Library |
| issn | 2196-7350 |
| language | English |
| publishDate | 2022-12-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Materials Interfaces |
| spelling | doaj-art-ac2d6faf3b6542488f51d2bc272f7b742025-07-04T08:30:18ZengWiley-VCHAdvanced Materials Interfaces2196-73502022-12-01935n/an/a10.1002/admi.202201553Ultralight and Resilient Bicontinuous Si3N4/SiC Nanowire Network for Tunable and Highly Efficient Electromagnetic Wave Absorption in Extreme ConditionsZhixin Cai0Lei Su1Min Niu2Lei Wang3Zhentao Ni4Hongjie Wang5Kang Peng6Lei Zhuang7State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 ChinaState Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 ChinaState Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 ChinaState Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 ChinaState Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 ChinaState Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 ChinaState Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 ChinaState Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 ChinaAbstract Developing tunable and highly efficient electromagnetic wave (EMW) absorbers with low density is crucial for the development of wireless telecommunications devices in extreme conditions. SiC ceramic has received much attention because of its dielectric tenability, low density, and chemical stability. However, the present SiC‐based materials usually show limited EMW absorbing performance than they are expected. Herein, an ultralight and resilient bicontinuous Si3N4/SiC network (8 mg cm−3) composed of EMW‐transparent Si3N4 microbelts and EMW‐absorption SiC nanowires is designed and prepared to achieve improved impedance matching and EMW attenuation capacity. The optimized bicontinuous network exhibits a broad effective absorption bandwidth of 8.62 GHz and a strong RLmin of −52.31 dB. Furthermore, the resulting bicontinuous Si3N4/SiC network, with thickness of 6 mm, shows a tunable absorption bandwidth ranging from 5.36 to 18 GHz by resilient action. It also exhibits excellent thermal stability (up to 1000 °C), thermal shock resistance (from −196 to 900 °C), and thermal insulation performance (32 Mw m−1 K−1), enabling it to be an ideal candidate for EMW absorption in extreme environments.https://doi.org/10.1002/admi.202201553bicontinuous networksextreme conditionsresilientSiC nanowirestunable electromagnetic wave absorption |
| spellingShingle | Zhixin Cai Lei Su Min Niu Lei Wang Zhentao Ni Hongjie Wang Kang Peng Lei Zhuang Ultralight and Resilient Bicontinuous Si3N4/SiC Nanowire Network for Tunable and Highly Efficient Electromagnetic Wave Absorption in Extreme Conditions Advanced Materials Interfaces bicontinuous networks extreme conditions resilient SiC nanowires tunable electromagnetic wave absorption |
| title | Ultralight and Resilient Bicontinuous Si3N4/SiC Nanowire Network for Tunable and Highly Efficient Electromagnetic Wave Absorption in Extreme Conditions |
| title_full | Ultralight and Resilient Bicontinuous Si3N4/SiC Nanowire Network for Tunable and Highly Efficient Electromagnetic Wave Absorption in Extreme Conditions |
| title_fullStr | Ultralight and Resilient Bicontinuous Si3N4/SiC Nanowire Network for Tunable and Highly Efficient Electromagnetic Wave Absorption in Extreme Conditions |
| title_full_unstemmed | Ultralight and Resilient Bicontinuous Si3N4/SiC Nanowire Network for Tunable and Highly Efficient Electromagnetic Wave Absorption in Extreme Conditions |
| title_short | Ultralight and Resilient Bicontinuous Si3N4/SiC Nanowire Network for Tunable and Highly Efficient Electromagnetic Wave Absorption in Extreme Conditions |
| title_sort | ultralight and resilient bicontinuous si3n4 sic nanowire network for tunable and highly efficient electromagnetic wave absorption in extreme conditions |
| topic | bicontinuous networks extreme conditions resilient SiC nanowires tunable electromagnetic wave absorption |
| url | https://doi.org/10.1002/admi.202201553 |
| work_keys_str_mv | AT zhixincai ultralightandresilientbicontinuoussi3n4sicnanowirenetworkfortunableandhighlyefficientelectromagneticwaveabsorptioninextremeconditions AT leisu ultralightandresilientbicontinuoussi3n4sicnanowirenetworkfortunableandhighlyefficientelectromagneticwaveabsorptioninextremeconditions AT minniu ultralightandresilientbicontinuoussi3n4sicnanowirenetworkfortunableandhighlyefficientelectromagneticwaveabsorptioninextremeconditions AT leiwang ultralightandresilientbicontinuoussi3n4sicnanowirenetworkfortunableandhighlyefficientelectromagneticwaveabsorptioninextremeconditions AT zhentaoni ultralightandresilientbicontinuoussi3n4sicnanowirenetworkfortunableandhighlyefficientelectromagneticwaveabsorptioninextremeconditions AT hongjiewang ultralightandresilientbicontinuoussi3n4sicnanowirenetworkfortunableandhighlyefficientelectromagneticwaveabsorptioninextremeconditions AT kangpeng ultralightandresilientbicontinuoussi3n4sicnanowirenetworkfortunableandhighlyefficientelectromagneticwaveabsorptioninextremeconditions AT leizhuang ultralightandresilientbicontinuoussi3n4sicnanowirenetworkfortunableandhighlyefficientelectromagneticwaveabsorptioninextremeconditions |