Title :
Effects of nano ceramics on electrical resistivity of pressure sensitive materials
Author :
Hussain, M. ; Choa, Y.-H. ; Niihara, K.
Author_Institution :
Inst. of Sci. & Ind. Res., Osaka Univ., Japan
Abstract :
We have developed unique pressure sensitive materials with good mechanical properties and durability which show a gradual change in electrical resistivity with applied pressure. Various amounts of carbon particles were dispersed in a Si rubber matrix to understand the effect of volume fraction on the percolation threshold. Nano-sized Al2 O3 particles were dispersed to investigate their effect on resistivity and to improve the mechanical properties of the composites. Finally uses of the materials as pressure sensors in electrical applications is recommended
Keywords :
carbon; conducting polymers; filled polymers; materials preparation; nanostructured materials; percolation; piezoresistance; pressure sensors; silicone rubber; Si rubber matrix; carbon particles; durability; electrical resistivity; mechanical properties; nano ceramics; nano-sized Al2O3 particles; percolation threshold; pressure effects; pressure sensitive materials; pressure sensors; volume fraction; Ceramics; Conductivity; Dispersion; Electric resistance; Electrical resistance measurement; Pressure measurement; Rubber; Silicon; Solvents; Ultrasonic variables measurement;
Conference_Titel :
Semiconducting and Insulating Materials Conference, 2000. SIMC-XI. International
Conference_Location :
Canberra, ACT
Print_ISBN :
0-7803-5814-7
DOI :
10.1109/SIM.2000.939250
