Synthesis and formation of alumina whiskers from hydrothermal solution

ISL OpenIR > 青海盐湖研究所知识仓储

	Synthesis and formation of alumina whiskers from hydrothermal solution
	Li, Jie 1,2; Li, Wu1 ; Nai, Xueying1 ; Bian, Shaoju1 ; Liu, Xin1 ; Wei, Ming1
	2010
发表期刊	JOURNAL OF MATERIALS SCIENCE
卷号	45 期号:1 页码:177-181
摘要	Al(2)O(3) whiskers with an average length of 5 mu m have been synthesized from hydrothermal solution. Al(NO(3))(3) and urea were mixed and put into a Teflon-lined stainless steel autoclave and then treated at 120 A degrees C to fabricate precursor whiskers NH(4)Al(OH)(2)CO(3) (AACH). AACH whiskers were heated at 1200 A degrees C in a furnace to obtain Al(2)O(3) whiskers. The time-dependent examinations revealed that the formation process of AACH whiskers involves two sequential processes: a short liquid-solid deposition process in the initial stage and a long Ostwald ripening process. During calcinations, AACH transforms to amorphism then to alpha-Al(2)O(3). The escape of NH(3) and CO(2) induced the distortion and toothlike morphology on the surface of the Al(2)O(3) whiskers.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/5952
专题	青海盐湖研究所知识仓储盐湖资源综合利用工程技术中心盐湖资源与化学实验室
作者单位	1.Chinese Acad Sci, CAS Key Lab Salt Lake Resources & Chem, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Jie,Li, Wu,Nai, Xueying,et al. Synthesis and formation of alumina whiskers from hydrothermal solution[J]. JOURNAL OF MATERIALS SCIENCE,2010,45(1):177-181.
APA	Li, Jie,Li, Wu,Nai, Xueying,Bian, Shaoju,Liu, Xin,&Wei, Ming.(2010).Synthesis and formation of alumina whiskers from hydrothermal solution.JOURNAL OF MATERIALS SCIENCE,45(1),177-181.
MLA	Li, Jie,et al."Synthesis and formation of alumina whiskers from hydrothermal solution".JOURNAL OF MATERIALS SCIENCE 45.1(2010):177-181.