Factors Affecting Oxygen Removal During Vacuum Processing

Autor:	K. R. Olen, E. L. Heck, L. S. Gonano
Rok vydání:	1970
Předmět:	General Engineering Analytical chemistry chemistry.chemical_element Thermodynamics Crucible Partial pressure Oxygen chemistry.chemical_compound chemistry Aluminium Torr General Materials Science Constant (mathematics) Oxygen content Carbon monoxide
Zdroj:	JOM. 22:36-41
ISSN:	1543-1851 1047-4838
DOI:	10.1007/bf03355650
Popis:	A series of 1%C-Fe melts was processed under various partial pressures of carbon monoxide in a 99% AW3 crucible at 1580 ± 10°C. The bath aluminum and oxygen contents were found to be a nonlinear function of treatment pressure asymptotic to 0.10%. Al and 5 ppm O. Since the experimentally determined values for oxygen removal were in good agreement with those predicted by thermodynamic calculations, it was concluded that melt-refractory interactions limit the minimum obtainable oxygen. A hypothesis is presented explaining the nature of the melt-refractory interactions which result in a constant bath oxygen content at pressures less than 100 torr and a constant aluminum content at pressures less than 10 torr.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ab5dadd0e6fbc3aef729ba8289f5496a https://doi.org/10.1007/bf03355650 Zobrazit plný text záznamu Full text from SpringerLink