OXIDATION BEHAVIOR OF BORONATED GRAPHITE IN HELIUM, CONTAINING WATER-VAPOR

被引：7

作者：

FUJII, K ^{[1
]}

NOMURA, S ^{[1
]}

IMAI, H ^{[1
]}

SHINDO, M ^{[1
]}

机构：

[1] RES ASSOC NUCL FACIL DECOMMISSIONING,TOKAI,IBARAKI 31911,JAPAN

来源：

JOURNAL OF NUCLEAR MATERIALS | 1992年 / 187卷 / 01期

关键词：

D O I：

10.1016/0022-3115(92)90315-C

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Oxidation tests of boronated graphite, which has been adopted as a neutron absorber material in the HTTR (High Temperature Engineering Test Reactor), were carried out in helium, containing water vapor, at up to 1000-degrees-C from a viewpoint of oxidation of B4C. It could be shown that the oxidation reaction of the boronated graphite consists of three reactions, i.e. B4C + 6H2O --> 2B2O3 + 6H2 + C(free carbon), C(free carbon) + H2O --> CO + H-2 and C(graphite) + H2O --> CO + H-2, and that the oxidation rates of the boronated graphite do not monotonously increase with temperature and are lower than that of graphite material due to the production of B2O3.

引用

页码：32 / 38

页数：7

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