Preparation of Indian Reference Material for the calibration of Powder X-ray Diffractometer: α-Alumina

Document Type : Original Article


1 Academy of Scientific and Innovative Research (AcSIR), Ghaziabad- 201 002, India

2 CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi – 110 012, India

3 Central Research Facility, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India

4 Lajpat Rai College, Sahibabad, Ghaziabad -Uttar Pradesh- 201005, India


The CSIR- National Physical Laboratory of India (NPLI) constantly prepares and disseminates Indian Reference Materials (Bharatiya Nirdeshak Dravya; BND®) in various areas. Recently, NPLI has prepared the Indian Reference Material (IRM) of α-Alumina to calibrate the Powder X-Ray Diffractometer (PXRD). In this report, the preparation and certification procedure of α-Alumina (BND 2001) has been examined as an Indian Reference Material that can be utilized as the primary standard for powder X-ray diffraction instruments. The developed IRM was utilized to calibrate PXRD for phase purity. The stability of the prepared α-alumina was studied by using powder X-ray diffractometer. The homogeneity and the particle size of the material were characterized by using scanning electron microscopy. The repeatability of the preparation and pertinent characterization were affirmed using different calibrated instruments. The phase purity of the material was verified by performing a round-robin test, and the related uncertainty estimations were reported in the paper.


Main Subjects

© 2023 The Author(s). Journal of Progress in Physics of Applied Materials published by Semnan University Press. This is an open access article under the CC-BY 4.0 license. (

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Volume 3, Issue 1 - Serial Number 4
(In honor of 80th birthday of Prof. P. Ramasamy)
November 2023
Pages 57-65
  • Receive Date: 12 July 2023
  • Revise Date: 03 September 2023
  • Accept Date: 04 September 2023