Effect of lamination conditions on gas permeability and adhesion strength of green ceramic tapes

Abstract

The gas permeability and adhesion strength of laminated green ceramic tapes were determined for samples comprised of barium titanate as the dielectric, and poly(vinyl butyral) and dioctyl phthalate as the main components of the binder mixture. The green tapes were laminated for times of 2–10 min, pressures of 1˙8–7 MPa, and temperatures of 35–85°C. The adhesion strength, which was measured by a peel test, increased with increasing lamination time, temperature and pressure. The permeability, which was determined from gas flux measurements, decreased with increasing lamination time, temperature and pressure. The dependence of the permeability and adhesion strength on lamination time, temperature and pressure is qualitatively consistent with a mechanistic description of the lamination process as one of binder flow in porous media.

Keywords

LAMINATION PERMEABILITY ADHESION STRENGTH CERAMIC GREEN TAPES BARIUM TITANATE

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