Ni-decorated SiC powders: Enhanced high-temperature dielectric properties and microwave absorption performance

Yuan, Jie; Yang, Huijing; Hou, Zhi‐Ling; Song, Wei‐Li; Xu, Hui; Kang, Yu-Qing; Jin, Haibo; Fang, Xiao‐Yong; Cao, Mao‐Sheng

doi:10.1016/j.powtec.2012.12.020

Cited by 75 publications

(32 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The minimum RL value and EAB of bulk SiC is relatively high and narrow, and amounts to ~−16 dB and ~3.0 GHz at 500°C, respectively . The MA performance of SiC‐based ceramics can be improved by reducing particle size, composite formation, doping with N, Fe, or decorating/coating with Ni, NiO, Ni–Co–P etc., which can enhance the minimum RL value and EAB to ~ −30 to −60 dB and ~2.5–4.2 GHz in the X‐band, respectively. However, the Fe, Ni, NiO, Ni–Co–P etc.…”

Section: Introductionmentioning

confidence: 99%

Microwave Absorption of SiC/HfC_xN_1−x/C Ceramic Nanocomposites with HfC_xN_1−x‐Carbon Core–Shell Particles

Wen

Feng

et al. 2016

J. Am. Ceram. Soc.

View full text Add to dashboard Cite

The dielectric properties of high‐temperature stable single‐source precursor‐derived SiC/HfCxN1−x/C ceramic nanocomposites are determined by microwave absorption in the X‐band (8.2–12.4 GHz) at room temperature. The samples synthesized at 1700°C, denoted as SiC/5HfCxN1−x/C‐1700°C and SiC/15HfCxN1−x/C‐1700°C ceramics, comprising ≈ 1.3 and ≈ 4.2 vol% HfCxN1−x, respectively, show enhanced microwave absorption capability superior to hafnium‐free SiC/C‐1700°C. The minimum reflection loss of SiC/5HfCxN1−x/C‐1700°C and SiC/15HfCxN1−x/C‐1700°C are −47 and −32 dB, and the effective absorption bandwidth amount to 3.1 and 3.6 GHz, respectively. Segregated carbon, including graphitic carbon homogeneously dispersed in the SiC matrix and less ordered carbon deposited as a thin film on HfCxN1−x nanoparticles, accounts for the unique dielectric behavior of the SiC/HfCxN1−x/C ceramics. Due to their large reflection loss and their high chemical and temperature stability, SiC/5HfCxN1−x/C‐1700°C and SiC/15HfCxN1−x/C‐1700°C ceramics are promising candidate materials for electromagnetic interference applications in harsh environment.

show abstract

Section: Introductionmentioning

confidence: 99%

Microwave Absorption of SiC/HfC_xN_1−x/C Ceramic Nanocomposites with HfC_xN_1−x‐Carbon Core–Shell Particles

Wen

Feng

et al. 2016

J. Am. Ceram. Soc.

View full text Add to dashboard Cite

show abstract

“…With resistance to both high temperature and oxidation, silicon carbide (SiC) or silicon nitride (Si 3 N 4 )‐based ceramics are important dielectronic type EM wave absorbing materials in harsh environments. The SiC‐based materials, including SiC particles/nanowires composites and SiC decorated/coated with iron, nickel, nickel oxide, Ni–Co–P have been fully studied. For high‐temperature microwave absorption materials, Cao et al studied the high‐temperature dielectric properties of β–MnO 2 , tetra‐needle zinc oxide/silica composites and SiC powders .…”

Section: Structure Parameters Of Sibcn Monolithic Ceramics and Iron‐cmentioning

confidence: 99%

Excellent Electromagnetic Wave Absorption of Iron‐Containing SiBCN Ceramics at 1158 K High‐Temperature

et al. 2018

View full text Add to dashboard Cite

The enhancement of electromagnetic wave absorption at high-temperature as well as oxidation is cutting-edge issue in current electromagnetic functional materials due to the strong demand of stealth aircrafts or aero-engines working in harsh environments. In this contribution, the excellent electromagnetic wave absorption at 1158 K (885 C) with a minimum reflection coefficient (RC min ) of À12.62 dB and a wide effective absorption bandwidth (RC min < -10 dB) of 3.2 GHz was achieved on iron-containing siliconboron carbonitride (SiBCN) monolithic ceramics by using polymer-derived ceramics (PDC) route, setting a new record for EM wave absorption materials at high-temperature. In addition, these materials exhibited desirable mechanical properties and excellent hightemperature resistance until 1400 C in argon atmosphere and 885 C in air atmosphere, respectively. This ingenious strategy is generally benefiting the promotion of EM wave absorption materials with great potential in antenna housings, radomes, areo-engines, and stealth aircrafts in harsh environments.With rapid development of electronic equipments in wireless communication, medical and aerospace fields, electromagnetic (EM) wave transparency, absorption, and shielding are important issues. [1][2][3][4] EM wave absorbing materials are mainly deployed in high-power electronic instruments, satellite communication, radar, stealth ships, and aircrafts, which can eliminate adverse EM waves by converting into thermal energy. However, the stealth aircrafts or aero-engines are working in harsh environments such as high temperature and oxidation, the enhancement of electromagnetic wave absorption and stealth performance at high temperature more than 600 C (873 K) is cutting-edge issue in current electromagnetic functional materials.In this field, metamaterials, ferrites, carbon family materials (carbon black, carbon fibers (CFs), carbon nanotubes (CNTs), graphite flakes, graphene foams, or graphenes), metal-carbon nano-hybrids (Fe 3 O 4 /CNTs/CFs, Fe 3 O 4 /graphene capsules, Co-carbon nanotubes-graphene, Co-Carbon metal-organic framework), core/shell hierarchical nanostructures and dielectronic ceramics, 2D transition metal carbides (MXenes) show favorable EM absorbing performance in ambient environment. [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] However, at high temperature more than 873 K (600 C), most of ferrites are limited by low Curie temperature (T c ), for example, 360-440 C for Ba 3 Me 2-Fe 24 O 41 (Me ¼ Co, Cu, Ni) and 570 C for Ni-Zn ferrites. [5] Above T c , the ferrite will be converted to paramagnetic and lose EM wave absorption functionality. For metamaterials, MXenes, and carbon family materials, they always suffer from the thermolysis and oxidation at high temperature more than 600 C (873 K).With resistance to both high temperature and oxidation, silicon carbide (SiC) or silicon nitride (Si 3 N 4 )-based ceramics are important dielectronic type EM wave absorbing materials in harsh environments. The SiC-based materials, including SiC ...

show abstract

“…Moreover, the dimensional and shape stability after thermal treatment of the final composite composed of ferromagnetic particles and hybrid resin is ensured by the convenient set up of productions parameters and addition of fillers [17]. Different kinds of composites with various combinations of used fillers and additives have found their application in microwave absorption due to their outstanding physicochemical properties [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

A comparison of soft magnetic composites designed from different ferromagnetic powders and phenolic resins

Strečková

Búreš

Fáberová

et al. 2015

Chinese Journal of Chemical Engineering

View full text Add to dashboard Cite

Ni-decorated SiC powders: Enhanced high-temperature dielectric properties and microwave absorption performance

Cited by 75 publications

References 28 publications

Microwave Absorption of SiC/HfC_xN_1−x/C Ceramic Nanocomposites with HfC_xN_1−x‐Carbon Core–Shell Particles

Microwave Absorption of SiC/HfC_xN_1−x/C Ceramic Nanocomposites with HfC_xN_1−x‐Carbon Core–Shell Particles

Excellent Electromagnetic Wave Absorption of Iron‐Containing SiBCN Ceramics at 1158 K High‐Temperature

A comparison of soft magnetic composites designed from different ferromagnetic powders and phenolic resins

Contact Info

Product

Resources

About

Ni-decorated SiC powders: Enhanced high-temperature dielectric properties and microwave absorption performance

Cited by 75 publications

References 28 publications

Microwave Absorption of SiC/HfCxN1−x/C Ceramic Nanocomposites with HfCxN1−x‐Carbon Core–Shell Particles

Microwave Absorption of SiC/HfCxN1−x/C Ceramic Nanocomposites with HfCxN1−x‐Carbon Core–Shell Particles

Excellent Electromagnetic Wave Absorption of Iron‐Containing SiBCN Ceramics at 1158 K High‐Temperature

A comparison of soft magnetic composites designed from different ferromagnetic powders and phenolic resins

Contact Info

Product

Resources

About

Microwave Absorption of SiC/HfC_xN_1−x/C Ceramic Nanocomposites with HfC_xN_1−x‐Carbon Core–Shell Particles

Microwave Absorption of SiC/HfC_xN_1−x/C Ceramic Nanocomposites with HfC_xN_1−x‐Carbon Core–Shell Particles