Fully dense in-situ 12 vol.% CNTs nanocomposites are 87% and 65% more wear resistant than monolithic Si3N4 materials and ex-situ nanocomposites, respectively, in the latter case due to the higher nanotubes dispersion and better mechanical properties attained by the in-situ process.
Laser-assisted oxidation resulted in a 7 μm thick fully dense ZrO2 layer on Zr in which an increase in oxidation kinetics was evident due to an increase in the laser power and/or the oxygen partial pressure.
Microstructure controlled material architectures were achieved with continuous Al2O3 fibers oriented in 0° and 90° layers to form fully dense composites in which the volume fractions of all four component phases can be tailored.
Metal powders, injected into the laser focal zone, are melted and then re-solidify into fully dense metal in the wake of the moving molten pool created by the laser beam.
There are four methods of mass transports, but the net effect is that the atoms diffuse together (sinter), the part shrinks by 20%, and you get a fully dense part (in casting terms, this is 98% or more).
The ability to process fully dense functional metals in RP machines is also of particular interest in the manufacture of custom-designed implants.
At the same time, rapid thermal cycles during HCPEB irradiation led to the very fine grains formed on the surface and the fully dense columnar grains in the fracture cross-section.
The porosity of the electrode prior to oxidation is shown to be immaterial as oxidation of a fully dense film results in similarly high capacitive values attributed to the formation of a porous surface layer.
An in situ consolidation technique was used to produce fully dense nanocrystalline Cu samples centimeters in lateral dimensions and about one millimeter in thickness.
Homogeneous, crack-free, fully dense coatings with thicknesses in the range of 42 478 μm were obtained.
