for XRD spectrum what will be the formulas to find the lattice parameter such as lattice constant for rutile and anatase phase.
Nourman... If you have an XRD pattern with identified peaks, then you only have to use Bragg's Law, which will correlate the 2tetha value of a peak with the lattice constants. (You can see how in this pdf, specifically on slide 25.) http://web.pdx.edu/~pmoeck/phy381/Topic5a-XRD.pdf
For a non-cubic structure:
With a (1,0,0) peak you can determine one lattice constant. Then with a (1,1,0) peak you can determine the second lattice constant, as you already know the first. Finally through a (1,1,1) peak you can calculate the last lattice constant, since you know the other two.
Kenneth...The experimental lattice parameters a = b = 4.5937 A˚ , c = 2.9581 A for rutile, a = b = 3.7842 A˚ , c = 9.5146 A for anatase
thanks a lot to give me your kind guidness
i have only two matching PDF cards if you have more than two then kindly send me.
rutile and anatase is not cubic so felling difficulty to find lattice parameter
but i will try with the help of your suggestion
Do you know about reference card??
I need PDF cards to match my XRD spectra for miller indices and despacing (d).
respected sir Kenneth M Towe
i am familiar with Bragg's equation
but by using this you only can find the de spacing d
as n=1
λ=1.54A0
theta is diffraction angle
only unknown is the d by putting values we can find
but here i am interested to find the values of lattice constant a, b and c
for which miller indices are necessary, and miller indices can be find by matching with JCPDS card
but i think you are right on your side and i am going to wrong way then kindly guide me
i attached one file
in which i dont know the values of (hkl)
thanks alot to give me your kind reply
yeah
Doesn't look like it
because the paper you gave me is only for powder.
but in my case i synthesized nano thin films by sol-gel method
but thanks for your cooperation
- Badges
- Science topic
- Similar topics
- Philosophy
- Philosophy Of Science
- Reasoning