A alloy Al1.5Cu3.5Nd was synthesized by experimental methods. The phase composition of the alloy after high temperature annealing was observed and analyzed by scanning electron microscopy. It indicates that the alloy is a single-phase alloy with uniform chemical composition. Then, the powder x-ray diffraction patterns of the compound were collected for Rietveld refinement. The results of Rietveld refinement show that Al1.5Cu3.5Nd is isostructural with AlCu4Nd, crystallizes in hexagonal CaCu5-type structure, the space group is P6/mmm (No.191), its lattice constants a, c, unit-cell volume V, formula units per unit cell z, and calculated density ρx are 5.1707(3) Å, 4.2011(2) Å, 97.27 Å3, 1, and 6.95 g/cm3, respectively. The residual factors are Rp = 3.31%, Rwp = 4.35% and Rexp = 2.87%.
A ternary compound Al1.5Ni3.5Pr was synthesized experimentally. The crystal structure analysis and refinement using powder X-ray diffractometer and Rietveld refinement method. The refinement results show that Al1.5Ni3.5Pr is isostructural with Al2NdNi3 and possesses a hexagonal CaCu5 structure type; further, The Pearson symbol is hp6, lattice constants a, c, unit cell volume V, the unit z, and calculated density ρx are 5.0814(3) Å, 4.0855(3) Å, 91.359 Å3, 1 and 7.034 g/cm3, respectively. Accordingly, its residual factors are Rp = 10.09%, Rwp = 13.83%, and Rexp = 6.66%.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.