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Structural and compositional comparison of Si3N4 ceramics with different fracture modes

Abstract:

Two similarly processed yttrium oxide-doped Si3N4 ceramics containing differing amounts of amorphous phase are studied. Differences in the fracture mode of these two materials have been analysed structurally and compositionally by transmission electron microscopy. In agreement with the chemistry of the starting materials, similar glass compositions are observed for the two samples from energy dispersive X-ray analysis. In both samples the yttrium-to-oxygen count ratio is lower in intergranula...

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Publication status:
Published

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Journal:
ACTA MATERIALIA More from this journal
Volume:
54
Issue:
7
Pages:
1949-1956
Publication date:
2006-04-01
DOI:
ISSN:
1359-6454
Language:
English
Keywords:
Pubs id:
pubs:5636
UUID:
uuid:89a67e48-7730-4021-89ce-f553c670f244
Local pid:
pubs:5636
Source identifiers:
5636
Deposit date:
2012-12-19

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