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Abstract：
High energy ball milling is a simple and effective method in preparing nano-particles, which can be used to lower the size of starting dielectric powder for building thin casting film, favoring to enhance the capacitance density of multilayer ceramic capacitors. In this paper, Bi0.5Na0.5TiO3-NaNbO3 (BNT-NN) binary system has been selected as research goal. After high temperature calcining, the obtained pure phase BNT-NN coarse powder was further pulverized by the high energy milling method. The results reveal that high energy milling method can realize the refinement of BNT-NN nano-powders in a short time. Using these nano-powders as precursor, the grain size of the densified ceramics decreases by about one third in comparison with those derived from normal coarse powders. Moreover, the temperature stability of capacitance of fine ceramics is below ±15% in a wide temperature region between -60 oC to 300 oC, showing potential application in high-temperature multilayer ceramic capacitors. © 2018, Science Press. All right reserved.
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Rare Metal Materials and Engineering
ISSN： 1002-185X
Year： 2018
Volume： 47
Page： 37-40
0 . 7 0 0
JCR@2022
ESI Discipline： MATERIALS SCIENCE;
ESI HC Threshold：260
JCR Journal Grade：4
Cited Count：
WoS CC Cited Count： 49
SCOPUS Cited Count：
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 20
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