Particle sizing of magnetite-based magnetic fluid using atomic force microscopy: A comparative study with electron microscopy and birefringence

被引：61

作者：

Lacava, BM ^{[1
]}

Azevedo, RB

Silva, LP

Lacava, ZGM

Neto, KS

Buske, N

Bakuzis, AF

Morais, PC

机构：

[1] Univ Brasilia, Inst Biol, BR-70910900 Brasilia, DF, Brazil

[2] Univ Brasilia, Inst Fis, NFA, BR-70919970 Brasilia, DF, Brazil

[3] FINATEC, BR-70910900 Brasilia, DF, Brazil

[4] Mediport Kardiotech GmbH, D-12247 Berlin, Germany

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 12期

关键词：

D O I：

10.1063/1.1311320

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Atomic force microscopy (AFM), transmission electron microscopy (TEM), and static magnetic birefringence (SMB) were used to unfold the particle size polydispersity profile of a magnetite-based magnetic fluid sample. The data obtained from different techniques were curve fitted using the lognormal distribution function, from which the mean particle diameter (D-m) and the standard deviation (sigma) were obtained. In comparison to the TEM data, the AFM data show a reduction of D-m (about 20%) and an increase of sigma (about 15%). In contrast, close agreement between the TEM and SMB data was found. (C) 2000 American Institute of Physics. [S0003-6951(00)02538-9].

引用

页码：1876 / 1878

页数：3

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