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|a 10.1021/acs.langmuir.5c02710
|2 doi
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|a pubmed25n1521.xml
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|a (NLM)40690736
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|a DE-627
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|a eng
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| 100 |
1 |
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|a Shen, Nairui
|e verfasserin
|4 aut
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|a Synthesis and Characterization of NiCaO Nanocapsules for Multilayer Ceramic Capacitors (MLCCs) Electrodes Prepared In Situ by DC Arc Plasma Method
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|c 2025
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 05.08.2025
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a NiCaO nanocapsules for multilayer ceramic capacitors (MLCCs) inner electrodes are synthesized in situ by the DC arc plasma method under nitrogen-rich atmosphere, and their structures, ionic valence states (Ca2+, O2-, Ni2+/3+), compositions, and other properties are characterized and tested. Based on the principle of oxygen potential, the aerosol growth model is introduced to explain the mechanism of synthesizing Ni@CaO nanoparticles, and it is confirmed that the composition ratio of CaO and Ni can be controlled during co-evaporation. The results show that the prepared pure nickel and all Ni@CaO nanoparticles are pure in physical phase, and the average grain sizes reach the nanometer scale with the smooth "core-shell" spherical structure, and the thickness of CaO shell is approximately 1.5 nm. According to the performance test results, the optimal doping ratio of Ni(100-x)@CaO(x) is determined to be 2:8 (CaO:Ni); its average grain size reaches 25 nm, and the oxidation temperature is 454.5 °C, which is 54.7 °C higher than that of the pure nickel samples. Meanwhile, the shrinkage rate of the scale sample decreased from 12.77% of the pure nickel powder for production and 15.31% of the pure nickel sample for S1 to 9.75% at a BaTiO3 matching temperature of 1200 °C. The variation law of the relationship between nanoparticle size unity and performance is verified. Moreover, its dielectric loss (tan δ) in high-frequency environments is only 0.03, which is greatly reduced, compared to the 0.05 of pure nickel, and can provide larger Q values. Based on this, the characteristics of DC arc plasma method are highlighted, such as simple material and simple process; due to the advantages of high stability and high melting point of CaO, the prepared Ni@CaO powder can be used as the potential substrate for the industrial production of the new generation of MLCCs devices
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|a Journal Article
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|a Li, Xiyang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Qu, Xinghao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gao, Jun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Chunjing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wei, Guanglong
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Yilong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dong, Xinglong
|e verfasserin
|4 aut
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| 700 |
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|a Jung, Youngguan
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g 41(2025), 30 vom: 05. Aug., Seite 20343-20360
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnas
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| 773 |
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|g volume:41
|g year:2025
|g number:30
|g day:05
|g month:08
|g pages:20343-20360
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|u http://dx.doi.org/10.1021/acs.langmuir.5c02710
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