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FIZIKA A 4 (1995) 1, 65-72
 
X-RAY DIFFRACTION STUDY OF W-B ELEMENTAL POWDER MIXTURES AFTER
HIGH-ENERGY BALL-MILLING
MIRKO STUBIČAR, ANTUN TONEJC and NADA STUBIČAR
Faculty of Science, University of Zagreb, Bijenička c. 32, P.O. Box 162, 41001
Zagreb, Croatia
The authors dedicate the paper to Prof. Dr. Josef Schurz, head of the
Inst. f. Physikalische Chemie der Karl-Franzens-Universität Graz on the occasion of his
70th birthday.
Received 29 December 1994
Revised manuscript received 23 March 1995
Very high temperatures are needed to prepare W-B compounds. However, the results
obtained in this study demonstrate a possibility of inducing the formation of W2B,
WB or WB4 tungsten borides, in air and at room temperature, using the
high-energy ball-mill treatment on appropriate compositions of the W-B elemental powder
mixtures. The present results throw a new light on the synthesis of tungsten borides, and
on the accuracy of the equilibrium W-B phase diagram.
UDC 538.951
PACS 41.50.+h, 62.20.-x
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