DC CONDUCTIVITY OF SOL-GEL DERIVED GLASSES IN THE SYSTEM FE2O3-SIO2

被引：0

作者：

BRAHMA, P ^{[1
]}

CHAKRAVORTY, D ^{[1
]}

MITRA, S ^{[1
]}

机构：

[1] GURUDAS COLL,CALCUTTA 700054,INDIA

来源：

EUROPEAN JOURNAL OF SOLID STATE AND INORGANIC CHEMISTRY | 1991年 / 28卷 / 05期

关键词：

D O I：

暂无

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Glasses in the series x Fe2 O3.(1-x) SiO2 with 0.01 < x < 0.1 have been prepared by sol-gel technique. DC resistivity of these glasses have been investigated over the temperature range 300 to 600K. The temperature variation of resistivity is explained on the basis of a small polaron hopping conduction mechanism, the Fe2+ and Fe3+ ions acting as the hopping sites. The high temperature data have been analysed by both the T-1/4 and T-2/5 law respectively as formulated by Triberis and Friedman. The density of localised states is calculated to be in the range 10(19)-10(20) eV-1 Cm-3.

引用

页码：1139 / 1150

页数：12

共 50 条

[21] Refractive indices of some glasses in the ternary system K(2)O4SiO(2)-Fe2O3-SiO2
Faust, GT
Peck, AB
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1938, 21 (09) : 320 - 324
[22] SOL-GEL SYNTHESIS OF SIO2-P2O5 GLASSES
FERNANDEZLORENZO, C
ESQUIVIAS, L
BARBOUX, P
MAQUET, J
TAULELLE, F
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1994, 176 (2-3) : 189 - 199
[23] Proton conductivity in sol-gel-derived P2O5-TiO2-SiO2 glasses
Nogami, M
Suwa, M
Kasuga, T
SOLID STATE IONICS, 2004, 166 (1-2) : 39 - 43
[24] Micro- and nanostructures of Fe2O3−SiO2 sol-gel derived thick coatings
G. Mezinskis
G. H. Frischat
E. Rädlein
Journal of Sol-Gel Science and Technology, 1997, 8 : 489 - 492
[25] Enhanced emission from Eu2+ ions in sol-gel derived Al2O3-SiO2 glasses
Nogami, M
Abe, Y
APPLIED PHYSICS LETTERS, 1996, 69 (25) : 3776 - 3778
[26] Reaction mechanism on the conversion of Na2O-B2O3-SiO2 sol-gel into glasses
Liu Weixue
Yang Xinyul
Liang Xiaojuan
Xiang Weidong
RARE METAL MATERIALS AND ENGINEERING, 2008, 37 : 583 - 586
[27] γ-Fe2O3/SiO2 nanocomposites obtained by sol-gel synthesis
Huang, XH
Chen, ZH
JOURNAL OF INORGANIC MATERIALS, 2005, 20 (03) : 685 - 691
[28] A STUDY ON THE SOL-GEL PROCESS FOR BAS （BaO-Al2O3-SiO2） GLASSES
杨觉明
张立同
张津生
航空学报, 1995, (05) : 558 - 563
[29] SOL-GEL PREPARATION OF GEO2-SIO2 GLASSES
FLEMING, JW
HASZ, WC
SCHWARTZ, IG
AMERICAN CERAMIC SOCIETY BULLETIN, 1982, 61 (08): : 819 - 819
[30] Effect of magnesia on the degradability and bioactivity of sol-gel derived SiO2-CaO-MgO-P2O5 system glasses
Ma, J.
Chen, C. Z.
Wang, D. G.
Jiao, Y.
Shi, J. Z.
COLLOIDS AND SURFACES B-BIOINTERFACES, 2010, 81 (01) : 87 - 95

← 1 2 3 4 5 →