SLIP CASTING OF COPPER POWDER,
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1964
- Accession Number
- AD0432235
Entities
People
- H. V. Sulinski
Organizations
- Frankford Arsenal