Some crystallographic trends into the Na 1+ x Zr 2 Si x P 3‐ x O 12 System

This paper gives a contribution to the crystallographic characterization of the Na 1+ x Zr 2 Si x P 3‐ x O 12 system, useful e.g. to analyze the right stoichiometric composition of a synthesized sample concerning this family of compounds, by powders X‐ray diffraction analysis. In the paper relations are in fact displayed to exist among d hkl , unit cell parameters and the stoichiometric parameter x . Such relations show to be linear for d hkl and a 0 , while the relation trend involving c 0 let one think the system is isostructural in the atomic arrangement for the ranges x < 2 and x <2, respectively, to the end terms with x =0 and x =3.