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- Newsgroups: sci.space
- Path: sparky!uunet!usc!cs.utexas.edu!torn!utzoo!henry
- From: henry@zoo.toronto.edu (Henry Spencer)
- Subject: Re: Aluminum as rocket fuel?
- Message-ID: <C05o64.CFt@zoo.toronto.edu>
- Date: Fri, 1 Jan 1993 03:25:15 GMT
- References: <19077@mindlink.bc.ca>
- Organization: U of Toronto Zoology
- Lines: 21
-
- In article <19077@mindlink.bc.ca> Nick_Janow@mindlink.bc.ca (Nick Janow) writes:
- >... I suppose nitrogen--or
- >other inert gas--would have to be imported. It could be mixed with oxygen,
- >since molten aluminum forms an oxide slag cover...
-
- Probably workable, although pressurant injection will have to be smooth
- enough not to disturb the surface too much. (This is something that can
- be a problem with some other kinds of pressurization, e.g. pressurizing
- LOX with GOX -- there can be substantial mixing that cools the pressurant
- gas considerably.)
-
- >To Henry: I've never heard of aluminum being very reactive with nitrogen.
- >Titanium is unusual.
-
- That's my impression too... but aluminum's pussycat reputation is mostly
- due to its oxide film -- it *is* a fiercely reactive metal. Probably
- okay, but if I were head of the design bureau :-), I'd like to see this
- checked before committing to it.
- --
- "God willing... we shall return." | Henry Spencer @ U of Toronto Zoology
- -Gene Cernan, the Moon, Dec 1972 | henry@zoo.toronto.edu utzoo!henry
-