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不同摩尔比Al2O3-ZrO2复合薄膜的性能探究
作者:王佳悦 同帜 高婷婷 刘婷 
单位:西安工程大学 环境与化学工程学院 西安 710048 
关键词:Al2O3 ZrO2 Al2O3-ZrO2复合膜 粘度 晶相变化 
分类号:X781.5
出版年,卷(期):页码:2018,38(6):84-89
摘要:

 采用氧化铝(Al2O3)溶胶和氧化锆(ZrO2)溶胶的不同摩尔比(r),通过溶胶-凝胶法制备Al2O3-ZrO2复合薄膜,用乌氏粘度计、热重分析仪(TG-DTG)、红外光谱仪(FTIR)、X射线衍射仪(XRD)、扫描电镜(SEM)、比表面积和孔结构分析仪及激光粒度仪对复合膜的粘度、热稳定性、晶相组成、表面形貌、比表面积和孔结构及粒度大小进行表征分析。结果表明:复合溶胶的摩尔比是影响Al2O3-ZrO2复合溶胶粘度和薄膜开裂的重要因素,随着r值的增大,复合膜的粘度减小,开裂度逐渐减缓;r=1的复合溶胶澄清透明,且在干燥后几乎无开裂,粘度为2.64 mPa·s;800 ℃热处理后,r=1的Al2O3-ZrO2复合膜热稳定性良好,结构致密,孔径分布窄,晶粒尺寸为31.30 nm,其比表面积、平均孔径分别为84.98m2/g、9.75 nm。

Using Al2O3 sol and ZrO2 sol with different molar ratio(r),Al2O3-ZrO2 composite membranes were prepared by sol-gel method.The results of the characterized analysis which use testing instruments such as Ukrainian viscosity,thermogravimetric(TG-DTG),Fourier transform infrared(FT-IR),X-ray diffraction(XRD),scanning electron microscope(SEM),nitrogen adsorption-desorption method to analyze thermal stability,crystal phases,surface morphology,specific surface area and pore structures of Al2O3-ZrO2 composite membranes demonstrate that:lake this,the composite sol of different molar ratio is an important factor affecting the viscosity of Al2O3-ZrO2 composite sol,with the increase of r,the viscosity of the composite sol decreases and the cracking degree decreases gradually;At the same heat treatment temperature of 800 ℃,the main crystal phase is t-ZrO2 and Al2O3 sol content in the composite membranes inhibited the crystallization and transparency of ZrO2 grains;When composite sol of r=1,the Al2O3-ZrO2 Composite sol is clear and transparent as well as it’s no cracking after drying,the viscosity was 2.65 mPa·s.The prepared Al2O3-ZrO2 composite membrane had a good thermal stability,compact structure,narrow pore size distribution,the grain size is 31.30 nm.The specific surface area and average pore diameter are 84.98 m2/g and 9.75 nm respectively. 

基金项目:
陕西省科技厅重点研发计划专项资金(2017GY-128)
作者简介:
第一作者个人简介:王佳悦(1995-),女,陕西西安人,研究生在读,从事环保新材料的应用研究。电子信箱Email:981084326@qq.com。通讯作者,E-mail:1018915428@qq.com
参考文献:

 [1]张慧梅,薛群虎,田晓利,等.凝胶结合Al2O3-ZrO2复相陶瓷性能研究[J].中国陶瓷,2011(2):23-26.

[2]刘志刚.Al2O3-ZrO2陶瓷复合材料的制备和强韧化机理研究[D].青岛:中国海洋大学,2009.
[3]杜红菊.多孔Al2O3-ZrO2陶瓷的微观结构[J].现代技术陶瓷,2015,36(4):50-53.
[4]Gandhi AS,Jayaram V,Chokshi AH.Densification studies on amorphous ZrO2-Al2O3 powder [J].Minerals Metals&Meterials Society,1999.
[5]Gandhi AS, Jayaram V,Chokshi AH.Low temperature densificaton behaviour of metastable phases in ZrO2-Al2O3 powders produced by spray pyrolysis[J].Materials Science&Engineering A,2001,s 304-306(1):785-789.
[6]Gandhi AS, Jayaram V.Pressure consolidation of amorphous ZrO2-Al2O3 by plastic deformation of powder particles[J].Acta Materialia,2002,50(8):2137-2149.
[7]Gandhi AS, Jayaram V.Plastically deforming amorphous ZrO2-Al2O3[J].Acta Materialia, 2003,51(6):1641-1649.
[8]李强伟,华小红.Al2O3/ZrO2复合金属陶瓷模具材料的研究[J].中国陶瓷,2014(11):70-73.
[9]刘国玺,李克智,李国斌.ZrO2添加量对Al2O3-ZrO2复相陶瓷性能的影响[J].兵器材料科学与工程,2015(4):37-40.
[10]李健生,郝艳霞,张烨,等.以无机盐前驱体制备中空纤维担载Al2O3/ZrO2复合膜[J].稀有金属材料与工程,2006,35(9):1449-1452.
[11]同帜,胡敏盾,董旭娟,等.SiO2-ZrO2复合膜的制备及其工艺参数的研究[J].膜科学与技术,2014,34(6):35-38.
[12]周锋,傅迎庆,梁开明,等.工艺参数对TiO2溶胶黏度及胶凝时间的影响[J].大连海事大学学报,2008,34(4):87-90.
[13]吴东兵,刘羽,牛志睿,等.溶胶-凝胶法制备SiO2的溶胶粘度性能研究[J].陕西科技大学学报,2008,26(2):53-56.
[14]郭金玲,沈岳年.用Scherrer公式计算晶粒度应注意的几个问题[J].内蒙古师范大学学报:自然科学版,2009,38(3):357-358.
[15]白周喜,高如琴,周宁生,等.ZrO2含量对Al2O3/ZrO2复相陶瓷微观结构和力学性能的影响[J].硅酸盐通报,2013,32(8):1640-1644.
[16]同帜,霍乐乐,董旭娟,等.溶胶-凝胶法制备氧化锆薄膜的工艺与表征[J].粉末冶金材料科学与工程,2016,21(1):174-179.
[17]同帜,行静,樊璐,等.以硝酸铝为前驱体制备Al2O3薄膜及其表征[J].膜科学与技术,2017,37(5):56-60.
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