Compositionally graded Fe–Pt thin films were prepared on stationary 100 mm Si substrates by magnetron sputtering a base target of Fe which piece Pt is asymmetrically positioned. Energy dispersive X-ray analysis was used to map the variation in film composition across substrate, as function size piece. A scanning polar Magneto-Optical-Kerr-Effect system probe influence and post-deposition anneal...

In the present study, compositionally-graded structures of AISI 316L and CoCrMo alloy are manufactured by powder-based laser-beam directed energy deposition (DED-LB). Through a process-integrated adjustment powder flow, in situ alloying two materials becomes feasible. Thus, sharp smooth transition with mixture both alloys can be realized. order to investigate phase formation during alloying, si...

Novel structures with functional gradation in composition and structure were successfully made in Ti-TiO(2) combination using laser engineered net shaping. The addition of fully dense, compositionally graded TiO(2) ceramic on porous Ti significantly increased the surface wettability and hardness. The graded structures with varying concentrations of TiO(2) on the top surface were found to be non...

Highly lattice-mismatched In,Ga,+P (~~0.38) layers were grown on GaP substrates by gas-source molecular beam epitaxy. A relatively thin, compositionally linear-graded buffer layer was used to reduce the number of threading dislocations. Studies by double-crystal x-ray diffraction and transmission electron microscopy show this buffer layer to be 97% strain-relaxed along both (110) directions wit...

The strain relaxation mechanism and defect properties of compositionally step-graded InAsyP1−y buffers grown by molecular beam epitaxy on InP have been investigated. InAsP layers having lattice misfits ranging from 1% to 1.4% with respect to InP, as well as subsequently grown lattice matched In0.69Ga0.31As overlayers on the metamorphic buffers were explored on both 100 and 2° offcut 100 InP sub...