%0 Journal Article
%T 2-D Phase-field Simulation of Pore Evolution in Sintering Ceramics<br>陶瓷烧结过程孔隙演化的二维相场模拟
%A JING Xiao-Ning
%A NI Yong
%A HE Ling-Hui
%A ZHAO Jian-Hua
%A <br>景晓宁
%A 倪勇
%A 何陵辉
%A 赵建华
%J 无机材料学报
%D 2002
%I Science Press
%X This paper was devoted to the modeling of pore evolution in sintering ceramics by a two-dimensional phase-field model. A pore among four grains was considered, and the microstruc-ture was described by a continuous density field and a long-range orientation field(LRO). The evolution of the density was governed by Cahn-Hilliard equation, while the orientation field by the time-dependent Ginzburg-Landau equation(TDGL). The nonlinear evolution equations were solved by a semi-implicit Fourier-spectral scheme. The simulation results reflect the microscopic process such as grain contact, sintering neck growth and pore spheroidization. The predicted growth rate of sintering neck and sintering rate for different ratios of grain boundary to surface mobility are consistent with the existing theoretical analysis.
%K sintering of ceramics
%K evolution of pore microstructure
%K phase-field model<br>二维相场模拟
%K 陶瓷
%K 烧结
%K 孔隙
%K 微结构演化
%K 扩散相场模型
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=9EBEE1D585FC096A&yid=C3ACC247184A22C1&vid=BCA2697F357F2001&iid=94C357A881DFC066&sid=818971F8BC8F9389&eid=FA63B973BAB5E93D&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=5&reference_num=19