Structure and Properties of β-Rhombohedral Boron Powders Produced by Mechanical Grinding

The paper analyzes and summarizes the results from studies on the structure and the mechanical, chemical, and process properties of size-classified β-rhombohedral boron powders produced by mechanical grinding. The influence of certain grinding factors on some characteristics (pycnometric and bulk de...

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Bibliographic Details
Published in:Powder metallurgy and metal ceramics 2014-09, Vol.53 (5-6), p.251-261
Main Authors: Gabuniya, D. L., Tsagareishvili, O. A., Chkhartishvili, L. S., Miridzhanashvili, Z. M.
Format: Article
Language:English
Subjects:
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Glass
Manufacturing Technology
Materials Science
Metallic Materials
Natural Materials
Powders
Properties of Powders and Fibers
Theory
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Summary:The paper analyzes and summarizes the results from studies on the structure and the mechanical, chemical, and process properties of size-classified β-rhombohedral boron powders produced by mechanical grinding. The influence of certain grinding factors on some characteristics (pycnometric and bulk densities, yielding, amplitude of EPR signals, and reactivity) are evaluated. Methods for the removal of impurities from ground powders, storage, and XRD testing of fine fractions are proposed. The research results are used to develop a process to produce β-rhombohedral boron powders of different particle sizes with stable structure and physical and processing characteristics. It is established that individual powder fractions can be used as additions to abrasive diamond micropowders and for the formation of neutron-absorbing coatings on various materials and articles.
ISSN:1068-1302
1573-9066
DOI:10.1007/s11106-014-9611-5