In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 38, No. 9S ( 1999-09-01), p. 5539-
Abstract:
The temperature dependence of the piezoelectric constant of
PbNi 1/2 Nb 2/3 O 3 –PbTiO 3 –PbZrO 3 50/ x /50- x ceramics (PNN–PT–PZ) in the vicinity of the morphotropic phase
boundary (MPB) induced with dc bias was investigated. The maximum value of the transverse piezoelectric constant, d 31 , of the
ceramic of PNN–PT–PZ 50/34/16 was 400 pm/V at room temperature and 600 pm/V at around 80°C. In the tetragonal ceramic of
PNN–PT–PZ 50/35/15, d 31 exhibited a maximum with increasing
temperature, and the position of MPB did not change under dc bias. In the rhombohedral ceramics of PNN–PT–PZ 50/34/16 and
50/33/17, d 31 also exhibited a maximum with increasing
temperature, because the ceramics underwent a phase transition from rhombohedral to tetragonal. These maximum positions of d 31 shift to
higher temperatures with increasing dc bias in the rhombohedral ceramics only. Based on the relationship between d 31 and
temperature under bias, a phase diagram for 0.5PbNi 1/2 Nb 2/3 O 3 –0.5Pb(Zr, Ti)O 3 ceramics under
dc bias is proposed. The ratio of the tilt of the MPB to temperature under dc bias is smaller than that under no dc bias.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.38.5539
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1999
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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