Synthesis of Sodium Beta Alumina Films by Heat Treatment of Sodium Aluminum Oxides

作     者：池晨 Hirokazu KATSUI Takashi GOTO 

作者机构：Key Laboratory for Green Chemical Process of Ministry of Education Chemical Engineering and Pharmacy Wuhan Institute of Technology 430070 China Institute for Materials Research Tohoku University 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2016年第31卷第1期

页      面：6-10页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：Funded by the Ministry of Education,Culture,Sports,Science and Technology,a Grant-in-Aid for Challenging Exploratory Research(No.26560235) the ARCMG–IMR Cooperative Program(No.14G0402)of Tohoku University the China Scholarship Council and the 111 Project(No.B13035)of China 

主　　题：sodium beta alumina heat treatment chemical vapor deposition morphology 

摘      要：Sodium beta alumina（Na-β-alumina） films were synthesized by heat treatment of NaAl6O（9.5）and γ-NaA1O2 films at temperatures of 1 373-1 573 ***-phase γ-NaA1O2 and NaAl6O（9.5） films were prepared by laser chemical vapor deposition at the deposition temperatures of 976 and 1 100 K,*** heat treatment of the films resulted in the formation of Na-β-alumina with α-Al2O3 at temperatures above 1 373 K for NaAl6O（9.5） and 1 473 K for γ-*** heat treatment at temperatures of 1 473-1 573 K,the faceted morphology with terraces of the as-deposited（110）-oriented γ-NaAlO2 films transformed to a porous morphology with platelet grains comprising Na-β-alumina and α-*** heat treatment at temperatures of1 373-1 473 K,the pyramidal,faceted grains of as-deposited NaAl6O（9.5） films transformed to planer,shapeanisotropic morphology in the film of mixed Na-β-alumina and α-Al2O3.A dense morphology was observed in both the as-deposited and heat-treated NaAl6O（9.5） films.