Soft Ferrite Pressure Sensors: Study 1 (Fein, Castle, Fisher & Campbell): Varying PVA as a Binder for Potential SoftFerrite Pressure Sensors
Mark Fein, James B. Castle, Julie Fisher, Vincent Campbell · Murray State's Digital Commons (Murray State University) · 2018
Binder application experiments of ferrite powders were carried out in order to determine sufficient binder content of toroidal bodies. Large-scale application of binder solution to these powders, such as in powder metallurgy industry, require expensive machinery; their costs however are not conducive to undergraduate research laboratories. A low cost binding process was therefore developed using various amounts of polyvinyl alcohol (PVA) to achieve optimal porosity of the powders after pressing. Scanning-Electron Microscopy and Elemental X-Ray Diffraction were then carried out and the effect of binder content on the porosity of pressed bodies was examined.