<trans-title xml:lang="en">Preparation and Wave-absorbing Properties of Polymer-derived SiHfCN Ceramics</trans-title>

Yuyu ZHANG; Yicheng WU; Jia SUN; Qiangang FU

doi:10.15541/jim20230546

Journal of Inorganic Materials, Volume. 39, Issue 6, 681(2024)

Preparation and Wave-absorbing Properties of Polymer-derived SiHfCN Ceramics

Yuyu ZHANG... Yicheng WU, Jia SUN* and Qiangang FU* |Show fewer author(s)

State Key Laboratory of Ultra High Temperature Composite Materials, Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi’an 710072, China

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Figures & Tables(11)

1. Characterization of the synthesized SSPs

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2. XRD patterns of the PDCs

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3. Raman analysis of the PDCs

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4. XPS high-resolution spectra of the PDCs

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5. SEM images and EDS analyses of the PDCs

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6. TEM images of SiHfCN and SiHfCN-C

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7. TEM images of SiHfCN-N and SiHfCN-B

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8. Electromagnetic parameters of the PDCs

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9. RL patterns and impedance matching maps of the PDCs

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Table 1. Raw material proportions (%, in mass) of different samples
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Table 1. Raw material proportions (%, in mass) of different samples
SSPs PDCs PSN Hf isopropoxide isopropanol complex DVB Melamine Dimethylamino borane
P7Hf3 SiHfCN 7 3 - - -
P7Hf3-C SiHfCN-C 7 3 6 - -
P7Hf3-N SiHfCN-N 7 3 - 6 -
P7Hf3-B SiHfCN-B 7 3 - - 6

Table 2. Elemental contents (%, in mass) and empirical chemical compositions of the PDCs

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Table 2. Elemental contents (%, in mass) and empirical chemical compositions of the PDCs

Element	SiHfCN	SiHfCN-C	SiHfCN-N	SiHfCN-B
Si	35.5	42.3	40.8	33.8
Hf	22.5	18.6	20.4	13.5
C	13.6	24	8.2	13.3
N	22.8	9.4	55.5	29.8
O	5.6	5.7	7.1	5.3
Empirical formula	SiHf_0.10C_0.90N_1.29O_0.28	SiHf_0.07C_1.33N_0.45O_0.24	SiHf_0.08C_0.47N_2.73O_0.31	SiHf_0.06C_0.92N_1.77O_0.28B_0.33

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Yuyu ZHANG, Yicheng WU, Jia SUN, Qiangang FU. Preparation and Wave-absorbing Properties of Polymer-derived SiHfCN Ceramics[J]. Journal of Inorganic Materials, 2024, 39(6): 681

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