介孔立方ZrO_2球形粒子准气相反应合成工艺的优化  

Optimization of Quasi-Gaseous State Reaction Synthesis Process of Mesoporous c-ZrO_2 Spherical Particles

作　　者：张辉[1] 王东栋[1] 邓立儿[1] 安振涛[2] 唐清[2] 王永生[1] 李文超[3] 

机构地区：[1]北京交通大学理学院,北京100044 [2]中国科学院过程工程研究所,北京100080 [3]北京科技大学冶金与生态工程学院物理化学系,北京100083

出　　处：《稀有金属材料与工程》2007年第A03期519-523,共5页Rare Metal Materials and Engineering

基　　金：国家自然科学基金项目(59974026);北京交通大学论文基金项目(PD297)资助

摘　　要：采用一种新颖的基于WEB的人工神经网络-遗传算法系统对介孔立方ZrO_2球形粒子准气相反应合成的新工艺进行了建模与优化设计。结果表明,合成最小粒径ZrO_2前驱物球的最优参数为:M_([ZrOCl_2·8H_2O])=0.49 mol/L,Vs=0.035 m^3/h,P=99.80 kPa;ZrO_2前驱物球的最小平均粒径为0.75μm。通过实验验证,此最优参数下合成的ZrO_2前驱物球平均粒径为0.72μm,计算值与实验值符合的较好。将合成的最小粒径前驱物球经干燥和600℃煅烧后,得到了平均粒径为0.64μm的介孔立方ZrO_2球。A novel web-based artificial neural network-genetic algorithm system was applied to new quasi-gaseous state reaction synthesis of mesoporous cubic ZrO2 spherical particles. The synthesis process was modeled by artificial neural network and the processing parameters were optimized by genetic algorithm to obtain minimum size ZrO2 precursor spheres. Computation results show that the optimization processing parameters are： M[ZrOCl2·8H2O]-0.49 mol/L, Vs-0.035 m^3/h, P-99,80 kPa, and the minimum size of ZrO2 precursor spheres obtained with these parameters is 0.75 μm. Correspondingly the experimental value of diameter of ZrO2 precursor spheres synthesized with the optimized parameters is 0.72μm, which is quite consistent with computation value and becomes 0.64μm after drying and calcination at 600 ℃.

关 键 词：人工神经网络-遗传算法系统 准气相反应法 介孔立方ZrO2 

分 类 号：TB302.4[一般工业技术—材料科学与工程]