Influence of Mechanochemical Activation on the Combustion Parameters and Phase Composition of ZnO-Co3O4-Mg(NO3)2•6H2O-Al2O3-Al Pigments

被引：0

作者：

L'vov, O. V. ^{[1
]}

Radishevskaya, N. I. ^{[1
]}

Nazarova, A. Yu. ^{[1
]}

机构：

[1] Russian Acad Sci, Tomsk Sci Ctr, Siberian Branch, Tomsk 634055, Russia

来源：

INTERNATIONAL JOURNAL OF SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS | 2023年 / 32卷 / 01期

关键词：

SHS; mechanochemical activation; IR spectroscopy; spinel; pigments; parallel and sequential reactions;

D O I：

10.3103/S1061386223010053

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Co-containing blue spinel pigments of the system ZnO-Co3O4-Mg(NO3)(2)center dot 6H(2)O-Al2O3-Al were prepared by combined use of SHS and mechanochemical activation (MA). IR spectroscopic studies revealed the following processes that accompany the MA: release of water from magnesium nitrate hexahydrate, as evidenced by absorption bands related to free water; phase transformation gamma-Al2O3 -> alpha-Al2O3; and nucleation of spinels. MA was shown to affect the combustion parameters. The combustion products derived from non-activated and activated charges were characterized by XRD, SEM, and optical metallography. It was found that SHS in combination with MA improves the color of pigments due to an increase in the completeness of the conversion of reactions.

引用

页码：8 / 14

页数：7

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