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LTCC is a known suitable platform for microfluidic systems. We have developed actuation-less non-return valve for gases and liquids, which is based upon the inlet and reverse pressure. This work compares three different designs of such valves. In these designs, top lid and bottom cavity layer together forms micro fluidic channel, through which fluid or gas can flow. The pressure based movable ceramic...
In the current paper lead-free piezoelectric ceramics BNKT, [Bi0.5(Na0.85K0.15)0.5]1−xSrxTiO3 (where x=0, 0.02, 0.04, 0.06) are prepared by conventional solid state route. Calcination studies are carried out to optimize the properties. XRD studies are carried out to confirm the perovskite phase formation. The powders are prepared in the form of discs of 10 mm diameter and 1.0 mm thickness. Subsequently,...
The ferroelectric and piezoelectric properties of Sn4+ modified (Ba0.7Ca0.3)(Ti1−xSnx)O3, (with x = 0.000 to 0.100 in steps of 0.025) lead free electroceramics were investigated. With Sn4+ substitution, a structural phase transition from pure tetragonal to pseudo-cubic structure has been observed; which strongly influence the ferroelectric/ piezoelectric nature of the samples. At room temperature,...
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