ISSN:
1662-9752
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:
AlN-BN composite Powders with the microstructure of micrometer-sized AlN particlescoated with BN particles were prepared via a chemical reaction, which used a mixture of boric acid(H3BO3) and urea (CO(NH2)2) as reactants coated on the surface of the AlN particles to react innitrogen ambient. The XRD and TEM studies showed that the coating layer (BN) was composedmostly of amorphous BN particles at the reaction temperature of 850oC ~1100oC. When thecomposite powders formed into pellets using cold isostatic-pressing, then, sintered at pressurelesssintering, the relative density of the composites that contained 15wt% BN reached above 98%, andthere was homogeneous microstructure
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.1559.pdf
