The Al2TiO5 was synthesized by nongydrolytic sol-gel process using Ti(OC4H9)4,AlCl3 and Al(OC3H7)3 as starting materials. The IR analysis shows that there is no hydrolyzation during the process. The ICP analysis of th...The Al2TiO5 was synthesized by nongydrolytic sol-gel process using Ti(OC4H9)4,AlCl3 and Al(OC3H7)3 as starting materials. The IR analysis shows that there is no hydrolyzation during the process. The ICP analysis of the gel shows that the Al/Ti ratio was nearly 2. The XRD pattern of the powder sintered at different temperature shows that crystalline β-Al2TiO5 was formed at 700℃, while the powder was amorphous up to 600℃.展开更多
We aim in this research at synthesizing high-purity aluminium titanate with sludge from the aluminium profile factory by shock cooling method, and mainly discuss the effect of calcining reaction temperature and holdin...We aim in this research at synthesizing high-purity aluminium titanate with sludge from the aluminium profile factory by shock cooling method, and mainly discuss the effect of calcining reaction temperature and holding time on crystalline, microstructure and content of aluminum titanate materials to determine the preferred calcining temperature and holding time. XRD and SEM methods were utilized to characterize the crystalline and microstructure of each specimen, Rietveld Quantification software was used for the determination of different crystalline contents of specimens, and Philips plus software was applied to determine the cell parameters of aluminium titanate in different specimens. According to the experimental results, preferred calcining temperature is determined as 1400℃ and preferred holding time is 2 h, at which the grains of aluminum titanate grow completely and the purity of aluminum titanate is 97.2wt%.展开更多
文摘The Al2TiO5 was synthesized by nongydrolytic sol-gel process using Ti(OC4H9)4,AlCl3 and Al(OC3H7)3 as starting materials. The IR analysis shows that there is no hydrolyzation during the process. The ICP analysis of the gel shows that the Al/Ti ratio was nearly 2. The XRD pattern of the powder sintered at different temperature shows that crystalline β-Al2TiO5 was formed at 700℃, while the powder was amorphous up to 600℃.
基金supported by the Natural Science Foundation of Fujian Province (No. T08J0129)the Science and Technology Developing Foundation of Fuzhou University (No. 2008-XQ-001)2007-year New Century Talents Supporting Program of Fujian Province (No.XSJRC2007-17)
文摘We aim in this research at synthesizing high-purity aluminium titanate with sludge from the aluminium profile factory by shock cooling method, and mainly discuss the effect of calcining reaction temperature and holding time on crystalline, microstructure and content of aluminum titanate materials to determine the preferred calcining temperature and holding time. XRD and SEM methods were utilized to characterize the crystalline and microstructure of each specimen, Rietveld Quantification software was used for the determination of different crystalline contents of specimens, and Philips plus software was applied to determine the cell parameters of aluminium titanate in different specimens. According to the experimental results, preferred calcining temperature is determined as 1400℃ and preferred holding time is 2 h, at which the grains of aluminum titanate grow completely and the purity of aluminum titanate is 97.2wt%.
