The stability of beryllia and magnesia in different atmospheres at high temperatures

Autor:	P. Murray, D.T. Livey
Rok vydání:	1956
Předmět:	Atmosphere Materials science chemistry Magnesium Equilibrium conditions Metallurgy General Engineering chemistry.chemical_element Knudsen number Volatility (chemistry) Water vapor
Zdroj:	Journal of Nuclear Energy (1954). 2:202-212
ISSN:	0891-3919
DOI:	10.1016/0891-3919(55)90035-8
Popis:	The behaviour of beryllia and magnesia under various conditions of atmosphere at high temperatures is discussed. Beryllia volatilizes readily in the presence of water vapour whereas magnesia does not. This is in conformity with the general higher stability of gaseous beryllium compounds compared with those of magnesium. In vacuo or in reducing atmospheres, magnesia volatilizes readily and this obviates its use as a high-temperature material under these conditions. Beryllia however is stable under these conditions. Calculations are made using the Knudsen relationship on the rates of loss in weight to be expected under equilibrium conditions for the various atmospheres mentioned above, and these are shown to account for the losses observed experimentally.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a99a6a42d748d5e194a7fcc03e63a8a5 https://doi.org/10.1016/0891-3919(55)90035-8 Zobrazit plný text záznamu