Structural and dielectric properties of hydrothermally prepared boehmite coatings on an aluminium foil

被引：7

作者：

Abram, A. ^{[1
,2
]}

Erste, A. ^{[3
]}

Drazic, G. ^{[2
,4
]}

Bobnar, V. ^{[2
,3
]}

机构：

[1] Jozef Stefan Inst, Dept Nanostruct Mat, Jamova Cesta 39, Ljubljana 1000, Slovenia

[2] Jozef Stefan Int Postgrad Sch, Jamova Cesta 39, Ljubljana 1000, Slovenia

[3] Jozef Stefan Inst, Dept Condensed Matter Phys, Jamova Cesta 39, Ljubljana 1000, Slovenia

[4] Natl Inst Chem, Lab Mat Chem, Hajdrihova 19, Ljubljana 1000, Slovenia

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2016年 / 27卷 / 10期

关键词：

SUSPENSIONS; ADSORPTION; PHASE; FILM;

D O I：

10.1007/s10854-016-5100-6

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report on the synthesis, structure and dielectric properties of hydrothermally prepared hydroxide coatings on an aluminium foil. X-ray diffraction results indicate that this hydrothermally prepared coating consists of sub-micron crystals of boehmite phase [gamma-AlO(OH)] which are homogeneously distributed over the whole surface. Crystals, around 200 nm in size have very narrow size distribution, blocky morphology and are densely packed forming the coating with thickness between 1.5 and 2.5 A mu m. The dielectric response of the boehmite layer is found to be extremely stable, with values of the dielectric constant of 5.5-6.5 over broad temperature (275-350 K) and frequency (1 kHz-1 MHz) ranges. The boehmite layers on the aluminium foil have a potential use for a variety of dielectric/capacitor applications.

引用

页码：10221 / 10225

页数：5

共 24 条

[1] BOEHMITE SOLUBILITY AND AQUEOUS ALUMINUM SPECIATION IN HYDROTHERMAL SOLUTIONS (90-350-DEGREES-C) - EXPERIMENTAL-STUDY AND MODELING [J].