Multistep damage evolution process in cubic zirconia irradiated with MeV ions

S. Moll, L. Thomé, G. Sattonnay, A. Debelle, F. Garrido, L. Vincent, and J. Jagielski

A combination of Rutherford backscattering spectrometry and channeling, x-ray diffraction, and transmission electron microscopy experiments was used to study the damage formation in cubic yttria-stabilized zirconia single crystals irradiated with medium-energy (4 MeV) heavy (Au) ions. The damage buildup, which is accounted for in the framework of the multistep damage accumulation model, occurs in three steps.

J. Appl. Phys. 106, 073509 (2009)

X-ray ablation of hyaluronan hydrogels: Fabrication of three-dimensional microchannel networks

B. M. Weon, S. Chang, J. Yeom, S. K. Hahn, J. H. Je, Y. Hwu, and G. Margaritondo

We present a simple and highly versatile protocol for polymer ablation: hard x-ray irradiation makes it possible to rapidly depolymerize hyaluronan hydrogels and fabricate three-dimensional network of microchannels.

J. Appl. Phys. 106, 053518 (2009)

Flexible active-matrix cells with selectively poled bifunctional polymer-ceramic nanocomposite for pressure and temperature sensing skin

Ingrid Graz, Markus Krause, Simona Bauer-Gogonea, Siegfried Bauer, Stephanie P. Lacour, Bernd Ploss, Martin Zirkl, Barbara Stadlober, and Sigurd Wagner

Our bifunctional frontplane element is based on a composite foil of piezoelectric ceramic lead titanate nanoparticles embedded in a ferroelectric poly(vinylidene fluoride trifluoroethylene) polymer matrix. Bifunctionality to pressure and temperature changes is achieved by a sequential, area selective two-step poling process, where the polarization directions in the nanoparticles and the ferroelectric polymer are adjusted independently.

J. Appl. Phys. 106, 034503 (2009)