ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract Ultrafine amorphous Si3N4 with an average grain size of 30 nm was prepared by a thermal plasma method. The sinterability of the material depends strongly on the degree of crystallization and it is almost constant in a sample with a higher degree of crystallization than 40%. A problem with the sample when crystallized is that it is difficult to obtain a high green density compared with other samples prepared by conventional methods. However, if it was homogeneously mixed with sintering additives, it sintered to 98% density in an N2 atmosphere, The microstructure of sintered bodies observed with an SEM and a TEM is briefly discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01132025
Permalink