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Crystallization of Ultrafine Amorphous Si 3 N 4 During Sintering
Author(s) -
Sawhill Howard T.,
Haggerty John S.
Publication year - 1982
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1982.tb10499.x
Subject(s) - materials science , sintering , amorphous solid , pellets , crystallization , chemical engineering , metallurgy , composite material , mineralogy , crystallography , chemistry , engineering
Ultrafine amorphous Si 3 N 4 powders were synthesized from laser‐heated gases and cold‐pressed into pellets for sintering experiments. At temperatures >1300°C, the powders crystallized with a concurrent, linearly proportional decrease in surface area. These powders densified on a local scale without additives or pressure.