Standard x-ray diffraction powder patterns

The epitaxial role of silica groups in promoting the formation of silica/carbonate biomorphs: A first hypothesis

“…Structural characterization was performed through Raman spectrometry (micro/macro Jobin Yvon mod. LabRam HRVIS) and X-ray powder diffraction (Siemens D5000 XRPD equipped with Bragg-Brentano geometry, CuKa 1,2 radiation, 2y ranging from 101 to 501, step size of 0.0051), the identification of the crystalline phases been carried out with the help of the ICDD Powder Diffraction File [26].…”

Studies in Germanium Oxide Systems: IV, Phase Equilibria in the System K,O‐GeO,

“…As can be seen from Fig. 3 it was rather difficult to establish more accurately the eutectic temperatures and the eutectic compositions between the 1 : 1 and 3 : 8 and between the 3 : 8 and 1 : 7 compounds because the compositions were so close to the compound 3:8.…”

Chemical preparation and crystal structure of silver pyrovanadate, Ag4V2O7

“…If we examine the Ag-Ag distances in a hexagonal sheet (2.989 to 3.206 ,&_) and the distance between two sheets (3.48/k) we find the values observed in the c.c.p, silver-metal structure, with only a small increase. If we consider the cubic edge (4.086/k) of the unit cell of metal silver (Swanson & Tatge, 1953), the value of the close-packing period ABCA is * Lists of observed and calculated structure factors, of thermal parameters and interatomic angles in AgO 6 and AgO5 groups have been deposited with the British Library Lending Division as Supplementary Publication No. SUP 38802 (20 pp.).…”