BaNd_2Ti_5O_<14>系コンデンサー原料のサブミクロン粉砕及びその焼結性

概要

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BaNd_2Ti_5O_<14> dielectric capasitor materials were pulverized by ball-milling, and the properties of pulverized powders and their sinterability have been studied by XRD, SEM, BET and electrical measurements. The properties of the pulverized powders were largely affected by the material and size of thje milling balls. Milling with SiO_2 or ZrO_2 balls improved the sinterability and especially the powders milled by SiO_2 balls were densified at 1000°C that is 150°C lower than the normal sintering tempeature. On the other hand, the powders milled by Al_2O_3 balls exhibited poor sinterability. Dielectric properties of the resulting ceramics made from these powders were also varied according to the milling media. These results indicated that the properties of the powders' and of the ceramics can be ascribed to the media wear in pulverized powders.
社団法人日本セラミックス協会の論文
1995-08-01