[J. Am. Ceram. Soc.] Polymer-Derived Ceramic Microspheres with Controlled Morphology via Novel Phase-Separation Assisted Pyrolysis
作者：Xiaofei Zhang, Lixin Chen, Chunjia Luo and Jie Kong*
關鍵字：Polymer-Derived Ceramic, Microspheres, PSAP
論文來源：期刊
具體來源：J. Am. Ceram. Soc. 2016, 99(5): 1485-1493
發表時間：2016年
Abstract: In this contribution, a novel and versatile
strategy named phase-separation assisted pyrolysis for the preparation of
polymer-derived ceramic microspheres with controlled morphology is reported. Various Si-C-N-(Ni) magnetic
microspheres with a dimension from micro to nano scale can be conveniently prepared by
using polymeric precursor with an assistance of polymer template of linear polystyrene. The morphology of
PDC microspheres could be controlled through the feed ratio of precursor and
template, pyrolysis temperature and centrifugal fractionation, which were proved
with dense
structure, tunable crystals and ferromagnetic property with an ultralow
hysteresis loss. During phase-separation and pyrolysis, the polymeric precursor or
molecular precursor as well as various polymer templates can be employed. So this strategy to synthesize ceramic microspheres with a dimension
from micro to nano scale is indeed general and convenient for functional
polymer-derived ceramic microspheres with well controlled morphology.
Keywords: polymer-derived
ceramics, microsphere, phase-separation, pyrolysis, functional
ceramics
論文在線地址：http://onlinelibrary.wiley.com/wol1/doi/10.1111/jace.14104/abstract