This letter describes the phenomenon that takes place between nickel/barium titanate couples when heated under conditions employed in multilayer ceramic capacitor manufacturing practice: a 4hr, 1300°C isothermal anneal in 1% H2 – 99% N2. Dense, sputtered nickel films were observed to dewet the titanate and agglomerate into discrete or interconnected islands via a solid-state process. Up to a critical film thickness value of ~1.4?m, the degree of agglomeration was found to display an exponential dependence on the thickness of the original nickel film.
Revised: December 11, 2007 |
Published: November 1, 2007
Citation
Weil K.S., E.S. Mast, and V. Sprenkle. 2007.Agglomeration behavior of solid nickel on polycrystalline barium titanate.Materials Letters 61, no. 28:4993-4996.PNNL-SA-57240.doi:10.1016/j.matlet.2007.03.088