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Microwave Sintering of Spinel‐Type Oxides
Author(s) -
Aliouat Mohamed,
Mazo Louis,
Desgardin Gilbert,
Raveau Bernard
Publication year - 1990
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.1151-2916.1990.tb07623.x
Subject(s) - sintering , spinel , materials science , ferrite (magnet) , microwave , metallurgy , composite material , mineralogy , chemistry , physics , quantum mechanics
Microwave sintering of spinel‐type oxides, and more particularly of the ferrite LiFe 5 O 8 , was performed in a resonant cavity without use of any absorbent support. The behavior of these materials in a microwave field is similar to those observed for perovskites. However, the quality factor of the cavity is largely dependent on the presence of the ferrite, and modification of the coupling of the cavity is necessary to reach high temperatures. Thus, the difficulty in sintering such material is due more to a drastic decrease of the Q factor than to a cut‐off temperature, as generally believed.