to "rosh009"
thanks for you appreciating my final year project and enquiring about its details...
to exactly provide you the info wont be in my capacity, but I will try to explain it as possible...
actually the project is an initiative related to a BARC research... (production of fuel cells) which happens to be the PhD work of my project guide...
the selection of NiO as the anode material was decided earlier based on its high temperature performance with respect to homogenity, sinterability, strength, porosity fraction, conduction etc etc (the list is quite long, seriously
)
anyways... nano powder basically means that the particle size diameter is extremely small... in the ranges of 10^-9 mts !!!
that was incredible for me too... but now I'm coming to grips with the same...
and with regards to single phase powders...its quite essential to have the same phase of a substance when you are working at nano level since any change in the structural parameters leads to abnormalities which might play havoc (this, i'm quoting my prof !!)
will let you know abt Titanium later... I gotta mug up some boring stuff for the pending exams !!
hope I've been of help to u..