Accession Number:

AD0432235

Title:

SLIP CASTING OF COPPER POWDER,

Descriptive Note:

Corporate Author:

FRANKFORD ARSENAL PHILADELPHIA PA

Personal Author(s):

Report Date:

1964-01-01

Pagination or Media Count:

28.0

Abstract:

It has been demonstrated that copper powder can be slip-cast using sodium alginate as a deflocculant binder and water as a liquid vehicle. The results show that spherically shaped powder is better than irregularly shaped powder for the production of copper slip castings. The viscosity of a copper slip is related to its pH value and exhibits a minimum in the normal pH range. Samples exposed to various thermal cycles in a dissociated ammonia atmosphere showed that the density of slip-cast copper powder increases with increasing sintering time and temperature. Lowering the water metal ratio increases the viscosity the as-dried strength, as-dried density and sintered density and decreases the shrinkage of castings. Vibration has a slightly beneficial effect on the properties of a copper casting. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE