Effect of plasticizer on the cracking of ceramic green bodies
Effect of plasticizer on the cracking of ceramic green bodies in gelcasting L. G. MA, Y. HUANG, J. L. YANG, H. R. LE & Y. SUN Journal of Materials Science 40 , 4947–4949 ( 2005) Cite this article 319 Accesses 22 Citations Metrics Download to read the full article text References O. O. OMATETE, M. A. JANNEY and R. A. STERKLOW, Ceram.
Effect of plasticizer on the cracking of ceramic green bodies
The effects of the plasticizers on the cracking of ceramic green bodies and the optimum amount, in gelcasting were analyzed. Three plasticizers including glycerine, polyethylene glycol and...
Effect of plasticizer on the fabrication and properties of alumina
Concerning ceramic industries related to suspension preparation and subsequent processes, it has been demonstrated that the plasticizing agent involved contribute to both the reduction of the elastic modulus of the binder system and internal stress of green body during polymerization [20].
The role of plasticizer in optimizing the rheological behavior
Generally, plasticizers have three functions in ceramic manufacturing. Firstly, the plasticizer molecules intercalate between the polymers by increasing the spacing between the polymers and reducing the van der Waals forces and friction between the molecules, thereby achieving low viscosity [8].
The role of plasticizer in optimizing the rheological behavior
Generally, plasticizers have three functions in ceramic manufacturing. Firstly, the plasticizer molecules intercalate between the polymers by increasing the spacing between the polymers and reducing the van der Waals forces and friction between the molecules, thereby achieving low viscosity [ 8 ].
- Do plasticizers affect slurry viscosity and mechanical properties of green bodies?
- This study investigated the effects of plasticizers and particle sizes ranging from the submicron to nanoscale on the slurry viscosity, drying shrinkage of wet gels, and mechanical properties of green bodies. The plasticity of the green bodies was assessed by measuring the impact toughness and flexural stress‒strain curves.
- Can plasticizers crack holes in green bodies?
- The drilling test revealed that there was nearly no cracking around the holes in the green bodies with plasticizers. The plasticity mechanism of the green bodies was examined based on ultraviolet–visible (UV–Vis) spectroscopy and scanning electron microscopy (SEM).
- How do plasticizers affect rheological behavior and solid loading of ceramic paste?
- The type and content of plasticizers (polyethylene glycol (PEG) and dibutyl phthalate (DBP)) had substantial effects on the rheological behavior and solid loading of ceramic paste, leading to varied macro / micro structure and strength of the green and sintered parts.
- Does plasticizer improve the toughness of green bodies?
- The dimensions of feature part are larger than those of the test samples, and the structure is more complex and no chamfering at right angles, which can more clearly reflect the effect of the plasticizer in improving the toughness of the green bodies and reducing the damage caused by the inner stress and shrinkage [14, 32].
- Can glycerol and polyethylene glycol be used as plasticizers?
- In the preparation of large-sized ceramics, the use of a green body with relatively high plasticity is crucial to minimize the risk of cracking during processing. To achieve this goal, glycerol and polyethylene glycol (PEG) were utilized as plasticizers in the shaping of green bodies of oxide ceramics through spontaneous coagulation casting (SCC).
- How to integrate alumina ceramic green bodies without delamination?
- Integrate alumina ceramic green bodies without delamination can be achieved by SLA process with the proper addition of plasticizer. The achievable mechanical properties of the sintered alumina are comparable to those of conventional alumina ceramics.
