Synthesis and Performance of KH-560 Modified SiO2 Insulation Coating

Conggang YANG; Le MI; Aihu FENG; Yang YU; Dazhi SUN; Yun YU

doi:10.15541/jim20210085

Journals >Journal of Inorganic Materials >Volume 36 >Issue 12 >Page 1343 > Article

Journal of Inorganic Materials
Vol. 36, Issue 12, 1343 (2021)

Synthesis and Performance of KH-560 Modified SiO₂ Insulation Coating

Conggang YANG^*, Le MI, Aihu FENG, Yang YU, Dazhi SUN, and Yun YU

DOI: 10.15541/jim20210085 Cite this Article

Conggang YANG, Le MI, Aihu FENG, Yang YU, Dazhi SUN, Yun YU. Synthesis and Performance of KH-560 Modified SiO₂ Insulation Coating[J]. Journal of Inorganic Materials, 2021, 36(12): 1343 Copy Citation Text

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(a) EDS spectra of the soft magnetic alloy before and after the coating process, and (b) EDS mapping of SiO2 coating on the soft magnetic alloy

. (a) EDS spectra of the soft magnetic alloy before and after the coating process, and (b) EDS mapping of SiO₂ coating on the soft magnetic alloy

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. (a) XRD patterns of the soft magnetic alloy before and after coating process, and (b) FT-IR spectra of the soft magnetic alloy before and after coating process

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. SEM images of (a) SiO₂-0.01 KH, (b) SiO₂-0.02 KH, (c) SiO₂-0.03 KH, and (d) SiO₂-0.04 KH

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. Tafel polarization curves of the soft magnetic alloy with different SiO₂ coating

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Sample	E_corr/V (vs. SEC)	I_corr/(A·cm^-2)	R_p/(Ω·cm²)	PE/%
Raw soft magnetic alloy	-0.973	4.0982×10^-5	552.31	-
SiO₂-0.01 KH	-0.182	7.398×10^-6	8559.9	81.95
SiO₂-0.02 KH	-0.150	3.4603×10^-7	6519.6	99.16
SiO₂-0.03 KH	-0.065	3.1833×10^-7	22077	99.22
SiO₂-0.04 KH	-0.007	2.9071×10^-7	76910	99.29

Table 0. Sheet resistance of different SiO₂ coating

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Sample		Sheet resistance at 10 V/(Ω/□)	Sheet resistance at 50 V/(Ω/□)	Sheet resistance at 100 V/(Ω/□)
SiO₂-0.01 KH	1	2.33×10⁹	3.66×10⁸	2.92×10⁸
	2	8.68×10⁸	4.58×10⁸	7.56×10⁸
	3	1.59×10⁹	5.85×10⁸	2.61×10⁸
	Average	1.60×10⁹	4.70×10⁸	4.36×10⁸
SiO₂-0.02 KH	1	1.82×10¹⁰	4.92×10¹⁰	8.88×10⁹
	2	4.55×10¹⁰	3.70×10¹⁰	4.40×10⁹
	3	2.19×10¹⁰	2.71×10¹¹	1.71×10¹¹
	Average	2.85×10¹⁰	1.19×10¹¹	6.14×10¹⁰
SiO₂-0.03 KH	1	8.71×10¹⁰	1.25×10⁹	2.21×10⁹
	2	4.17×10¹⁰	6.55×10¹⁰	6.52×10⁹
	3	5.68×10¹⁰	8.58×10⁹	6.02×10⁹
	Average	6.19×10¹⁰	2.51×10¹⁰	4.92×10⁹
SiO₂-0.04 KH	1	8.62×10¹⁰	2.81×10¹¹	4.51×10¹⁰
	2	3.33×10¹¹	4.52×10¹⁰	2.76×10¹¹
	3	1.91×10¹¹	1.56×10¹⁰	5.70×10¹¹
	Average	2.03×10¹¹	1.14×10¹¹	2.97×10¹¹

Table 0. Sheet resistance of different SiO₂ coating at different voltages

Conggang YANG, Le MI, Aihu FENG, Yang YU, Dazhi SUN, Yun YU. Synthesis and Performance of KH-560 Modified SiO₂ Insulation Coating[J]. Journal of Inorganic Materials, 2021, 36(12): 1343

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