Thermal Oxidation of the Decahydro-closo-Decaborate Anion B10H102- in a Silicate Matrix

被引：8

作者：

Skachkova, V. K. ^{[1
]}

Goeva, L. V. ^{[2
]}

Grachev, A. V. ^{[1
]}

Avdeeva, V. V. ^{[2
]}

Malinina, E. A. ^{[2
]}

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

Berlin, A. A. ^{[1
]}

Kuznetsov, N. T. ^{[2
]}

机构：

[1] Russian Acad Sci, Semenov Inst Chem Phys, Moscow 119991, Russia

[2] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia

来源：

INORGANIC MATERIALS | 2015年 / 51卷 / 05期

关键词：

Differential Scanning Calorimetry; Differential Scanning Calorimetry Curve; Thermal Oxidation; Water Glass; Silicate Matrix;

D O I：

10.1134/S0020168515050155

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied the thermal oxidation of composites produced by reacting sodium water glass with the B10H102- anion owing to multicenter contacts and possessing a spatially branched structure. The results demonstrate that, in air between 300 and 500 degrees C, some of the decahydro-closo-decaborate anions present in the water glass/B10H102- system oxidize, which is accompanied by a large exotherm and leads to the formation of a surface borosilicate layer preventing further oxygen diffusion into the bulk of the sample and oxidation of the B10H102- anion. Samples protected by a coating produced during thermal oxidation possess thermal and deformation stability up to 600 degrees C.

引用

页码：498 / 502

页数：5

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