Effect of PAHM (Poly-acrylonitrile Hollow Microsphere) addition on the Lightweight and Firing Behavior of Whiteware

The pore generation technology using PAHM (Poly-acrylonitrile Hollow Microsphere) was studied in order to reduce the weights of tableware. In this study, we verify the property of modified slurry and plasticity of green body by adding PAHM. The modified slurry was prepared by adding 25∼55vol% of PAH...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2011-10, Vol.18 (22), p.222029-4
Main Authors: Choi, H S, Pee, J H, Kim, G H, Kim, J Y, Cho, W S, Kim, K J
Format: Article
Language:English
Subjects:
Agglomerated defects
Microspheres
Plastic properties
Plasticity
Porosity
Slip casting
Slurries
Surface defects
Tableware
Viscosity
Weight reduction
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Summary:The pore generation technology using PAHM (Poly-acrylonitrile Hollow Microsphere) was studied in order to reduce the weights of tableware. In this study, we verify the property of modified slurry and plasticity of green body by adding PAHM. The modified slurry was prepared by adding 25∼55vol% of PAHM to the slurry for whiteware. The viscosity of slurry was controlled to be low value (25∼45vol%). However, the viscosity of modified slurry increased and the plasticity of modified green body decreased inside the 45∼55vol% range. The formed specimen by slip casting was fired at 1225 °C, 1240°C. As the amount of PAHM content increased, the weight decreased and the addition of 45vol/% of PAHM resulted in a weight drop of 39%. However, when the PAHM content increased, the strength decreases over 50%. This is caused by the presence of a large volume of surface defects (pores) and defects from the agglomeration of PAHM.
ISSN:1757-899X
1757-8981
1757-899X
DOI:10.1088/1757-899X/18/22/222029