TY - GEN
T1 - Nitride based ceramic nanocomposites with multifunctionality
AU - Kusunose, Takafumi
AU - Sekino, Tohru
AU - Niihara, Koichi
PY - 2007/12/3
Y1 - 2007/12/3
N2 - Two types of Aluminum nitride (AlN) based ceramic nanocomposite with multifunctionality were investigated to improve machinability or electrical conductivity of AlN ceramics with high thermal conductivity. The AlN/BN nanocomposite was fabricated by pressureless sintering AlN-BN composite powder, which was prepared by reducing and heating AlN particles coated with a mixture of boric acid, urea and carbon. The nanocomposite containing 20 vol.% BN showed high strength, good machinability and relatively high thermal conductivity. On the other hand, the electrically conductive AlN ceramics with high thermal conductivity were attained by precipitating yttrium oxycarbide at grain boundaries. Their electrical conductivities were high enough to be machined by electric discharge machining.
AB - Two types of Aluminum nitride (AlN) based ceramic nanocomposite with multifunctionality were investigated to improve machinability or electrical conductivity of AlN ceramics with high thermal conductivity. The AlN/BN nanocomposite was fabricated by pressureless sintering AlN-BN composite powder, which was prepared by reducing and heating AlN particles coated with a mixture of boric acid, urea and carbon. The nanocomposite containing 20 vol.% BN showed high strength, good machinability and relatively high thermal conductivity. On the other hand, the electrically conductive AlN ceramics with high thermal conductivity were attained by precipitating yttrium oxycarbide at grain boundaries. Their electrical conductivities were high enough to be machined by electric discharge machining.
KW - Aluminum nitride
KW - Boron nitride
KW - Electric discharge machining
KW - Electrical conductivity
KW - Machinability
KW - Thermal conductivity
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UR - http://www.scopus.com/inward/citedby.url?scp=36448964473&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:36448964473
SN - 1880653680
SN - 9781880653685
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 2907
EP - 2911
BT - Proceedings of The Seventeenth 2007 International Offshore and Polar Engineering Conference, ISOPE 2007
T2 - 17th 2007 International Offshore and Polar Engineering Conference, ISOPE 2007
Y2 - 1 July 2007 through 6 July 2007
ER -