Polyvinyl alcohol evaporation method for preparation of submicron chromite powders

被引：27

作者：

Adak, AK ^{[1
]}

Pathak, A ^{[1
]}

Pramanik, P ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem, Kharagpur 721302, W Bengal, India

来源：

BRITISH CERAMIC TRANSACTIONS | 1999年 / 98卷 / 04期

关键词：

D O I：

10.1179/096797899680453

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：

Fine particles of chromites (MO.Cr2O3 where M = Mg, Zn, Ni, Co, and Cu) have been prepared by calcination of precursor powders prepared by evaporation of an aqueous solution of polyvinyl alcohol and stoichiometric amounts of the desired metal nitrates in appropriate mole ratios. The calcination temperatures, for the various chromite precursors, ranged from 350 to 450 degrees C. The formation of the respective pure chromite phase in the calcined powders has been inferred from X-ray diffraction and infrared spectroscopy studies. The powders were found to be compositionally? homogeneous and the average particle sizes, measured using transmission electron microscopy, were found to lie in the range 100-200 Angstrom.

引用

页码：200 / 203

页数：4

共 13 条

[1] Synthesis and characterization of lanthanum aluminate powder at relatively low temperature [J].

Adak, AK ;

Pramanik, P .

MATERIALS LETTERS, 1997, 30 (04) :269-273

[2] INFLUENCE OF OXYGEN ACTIVITY ON SINTERING OF MGCR2O4 [J].

ANDERSON, HU .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1974, 57 (01) :34-37

[3]

BAKKER WT, 1984, AM CERAM SOC BULL, V63, P870

[4]

CHICK LA, 1990, MATER LETT, V10, P6012

[5]

Dyer J.R., 1989, APPL ABSORPTION SPEC, V7th, P32

[6]

GADSDEN JA, 1975, INFRARED SPECTRA MIN, P193

[7]

GERHANTZ W, 1988, ULLMANNS ENCY IND CH, V306, pA7

[8] CATALYTIC METHANOL SYNTHESIS FROM CARBON-MONOXIDE AND WATER [J].

KLINGLER, RJ ;

RATHKE, JW .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1984, 106 (24) :7650-7652

[9]

Klug M.P., 1974, X-Ray Diffraction Procedures: Fo Polycrystalline and Amorphous Materials, Vsecond, P634

[10] COMBUSTION SYNTHESIS OF METAL CHROMITE POWDERS [J].

MANOHARAN, SS ;

PATIL, KC .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1992, 75 (04) :1012-1015

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