FRACTAL MODEL OF AMORPHOUS AND SEMICRYSTALLINE NANO-SIZED ZIRCONIA AEROGELS

被引：18
|
作者：
ZENG, YW
RIELLO, P
BENEDETTI, A
FAGHERAZZI, G
机构：
[1] UNIV VENICE,DIPARTIMENTO CHIM FIS,I-30123 VENICE,ITALY
[2] NANJING INST CHEM TECHNOL,NANJING 210009,PEOPLES R CHINA
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 1995年 / 185卷 / 1-2期
关键词：
D O I：
10.1016/0022-3093(94)00678-4
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A small angle X-ray scattering (SAXS) study of fractal aggregates of nano-sized ZrO2 aerogel powders was carried out. Two samples showing different structural properties (one is semicrystalline and the other is completely amorphous) have similar fractal behaviour showing an inflexion point, h(f), located between the fractal linear and Pored linear part in the log J(h)-log h plot. In order to provide a quantitative interpretation of the SAXS intensities, a best fit procedure was applied. A short-distance scaling factor in the structure factor which gradually makes the fractal behaviour develop through a transition r-region and a form factor characterized by a coherent and continuous merging of Guinier's and Pored's regime are proposed. The best fit procedure enabled determination of fractal and microstructural parameters of the two systems.
引用
收藏
页码：78 / 83
页数：6
相关论文
共 50 条
  • [1] Rheological properties of nano-sized zirconia suspensions
    Tang, FQ
    Huang, XX
    Guo, JK
    PROCEEDINGS OF THE FIRST CHINA INTERNATIONAL CONFERENCE ON HIGH-PERFORMANCE CERAMICS, 2001, : 196 - 199
  • [2] Crystallization of amorphous nano-sized silicon powders
    Dutta, J
    Reaney, IM
    Bossel, C
    Houriet, R
    Hofmann, H
    NANOSTRUCTURED MATERIALS, 1995, 6 (1-4): : 493 - 496
  • [3] Preparation of Nano-sized Zirconia Powders by the Impregnation Method
    Han, Cheong-Hwa
    Kim, Soo-Jong
    JOURNAL OF THE KOREAN CERAMIC SOCIETY, 2012, 49 (05) : 454 - 460
  • [4] Densification of zirconia from submicron-sized to nano-sized powder particles
    Liu, DM
    JOURNAL OF MATERIALS SCIENCE LETTERS, 1998, 17 (06) : 467 - 469
  • [5] Analysis of interface luminescence in nano-sized amorphous silicon
    Fu, Guangsheng
    Zhang, Jiangyong
    Ding, Wenge
    Lu, Xueqin
    Yu, Wei
    Pan Tao Ti Hsueh Pao/Chinese Journal of Semiconductors, 2007, 28 (SUPPL.): : 91 - 94
  • [6] Optical and holographic properties of nano-sized amorphous semiconductor
    Sainov, S.
    Sainov, V.
    Dikova, J.
    Beev, K.
    JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 2007, 9 (10): : 3125 - 3127
  • [7] Annealing simulations of nano-sized amorphous structures in SiC
    Gao, F
    Devanathan, R
    Zhang, Y
    Weber, WJ
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2005, 228 : 282 - 287
  • [8] Nano-sized ceramics of coated alumina and zirconia analyzed with SANS
    Keiderling, U
    Wiedenmann, A
    Srdic, V
    Winterer, M
    Hahn, H
    JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2000, 33 (01): : 483 - 487
  • [9] Phase transition of nano-sized amorphous tungsten to a crystalline state
    Malkhasyan, R. T.
    Arutyunyan, R. V.
    Kamaeva, L. V.
    Salamatov, E. I.
    JOURNAL OF CONTEMPORARY PHYSICS-ARMENIAN ACADEMY OF SCIENCES, 2014, 49 (01) : 34 - 38
  • [10] Synthesis of Nano-Sized Zirconia Ceramics via a Preceramic Polymer Method
    Tao, Xueyu
    Wei, Xianyong
    Chen, Xiaolan
    Lua, Wanzheng
    Ma, Ming
    Zhao, Tong
    REFRACTORIES AND INDUSTRIAL CERAMICS, 2014, 55 (01) : 63 - 66
12345