Options
2010
Conference Paper
Titel
Design of granules for die pressing by organic compaction aids
Titel Supplements
Abstract
Abstract
Granules for die pressing determine the properties and reliability of ceramic parts and system components which are produced by a powdertechnological route. For the manufacturing of large-scale components, thus, the granules have to meet the following requirements: - Fine, preferably narrow size distribution of the granules - Homogeneous granule structure - Low to medium specific fracture load - High plastic deformation - Good flowability - High compressibility and low friction forces during pressing - Stable properties The adjustment of tailored granule properties requires a methodology as well as knowledge about technological and formulation-related influences such as, e.g., the effect of organic compaction aids. In the lecture a methodology will be presented, which allows the design of granules for die pressing by a target-oriented use of organic compaction aids. One aspect is the identification of the influence that different organic binders and lubricants have on the above-mentioned granule properties. The focus of the presented work is on the influence of binder-lubricant-mixtures on the strength distribution and the deformation behaviour of single granules as well as on the pressability of the bulk material.