ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

RIFRAN-85 - A set of programmable calculator programs for powder diffraction phase identification

T. Havík, M. Škrobian, and M. Havlík

Department of Nonferrous Metallurgy, Metallurgical Faculty of the Technical University, CS-04385 Košice

Abstract: A small, effective and practical identification system, RIFRAN 85, has been developed and implemented on a programmable calculator EMG 666/B (product of Hungary) with 8 kbytes of operational memory. These interactive calculator programs have been used for qualitative phase analysis of X-ray diffraction patterns using standard files created by the authors, which were collected from various published data. The computer programs are written in the EMG assembly language. A specialized standard database stored on magnetic compact cassette tape is used for phase identification. Each standard pattern comprises 35 diffraction lines represented by 20 and I_r values. The identification procedure is based on the comparison of diffraction patterns of standard and unknown sample involving the chemical and match criteria.

Full paper in Portable Document Format: 422a121.pdf

Chemical Papers 42 (2) 121–132 (1988)