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:
In previous report, we succeeded in preparing dense nano-sized ceramics with the compositionof Y- α-sialon (m=1.35, n=0.675) by high-energy mechanical milling followed by spark plasma sintering.The superplastic deformation of the obtained nano-ceramics was studied in this report. A good ductility ofthe nano-sized ceramics has been confirmed, which arised from the nano-sized grains and large amount oftransient liquid phase. The effects of deformation on the phase and microstructural evolution were alsostudied. The nano-sized grains promoted the formation of elongated α-sialon grains during post-annealingat 1850oC for 3 h, which would strengthen and toughen the deformed ceramics
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.1001.pdf