Microstructural studies of nanocrystalline a-alumina powder produced from Al13-cluster

被引：5
|
作者：
Ahmad, Megat Harun Al Rashid Megat [1 ]
Mohamed, Abdul Aziz [1 ]
Ibrahim, Azmi [2 ]
Mahmood, Che Seman [1 ]
Putra, Edy Giri Rachman [3 ]
Jamro, Rafhayudi [1 ]
Kasim, Razali [1 ]
Zin, Muhammad Rawi Muhammad [1 ]
机构：
[1] Ind Technol Div, Agensi Nukl Malaysia, Mat Technol Grp, Kajang 43000, Selangor, Malaysia
[2] Univ Putra Malaysia, MTDC, Telekom Malaysia R&D, Microelect & Nanotechnol Program, Serdang 43400, Selangor, Malaysia
[3] Badan Tenaga Nukl Nas BATAN, Ctr Technol Nucl Ind Mat Technol, Neutron Scattering Lab, Puspiptek Serpong 15314, Tangerang, Indonesia
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2007年 / 68卷 / 12期
关键词：
ceramics; electronic materials; chemical synthesis; neutron scattering; microstructure;
D O I：
10.1016/j.jpcs.2007.07.015
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Nanocrystalline alumina powder was produced from calcinations of Al-13-oxal ate precipitates at 1100 degrees C. A nearly normal distribution of agglomerated alumina powder was obtained with an average particle size of about I pm. XRD measurement confirmed that the alumina produced was of high purity and crystalline g-phase. Microstructural features of both the precipitates and alumina obtained were studied using the small angle neutron scattering (SANS) technique. SANS examinations show the formation of microstructures in the alumina powder of mass fractals type with dimension of similar to 2.8 indicative of low intra-granular porosity. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2349 / 2352
页数：4
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