ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Based on the CaCO3-B4C-C system to prepare calcium hexaboride (CaB6) powder, theinfluence of B4C size on the CaB6 powder was investigated in this paper, in which micro-sized B4Cin various size and nano-sized CaCO3 were as main raw materials. XRD and SEM were used tocharacterize the phase pattern, size and morphology of CaB6 powder particles respectively. Laserparticle size analyzer was employed to determine the size distribution of CaB6 particles. It wasfound that the size of B4C had a dominant effect on the size and distribution of CaB6 powderparticles. When B4C particles were much coarser than CaCO3, the CaB6 synthesized appeared asaggregates which size relied on B4C, however, the size of every CaB6 particle was determined byCaCO3. When B4C particles size was fine to several microns, the CaB6 particles synthesized weredispersive and the size of them has great relation to B4C. Synthesis models were also established todescribe various reaction processes
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/52/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.326-328.369.pdf
