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cordierite

铜虫 (小有名气)

[交流] 【请教】P-E曲线解释? 已有2人参与

This composition (Fig.a)showed large remnant polarization
and a steep slope of the P–E curve near the observed coercive
field, as commonly observed in ‘‘soft’’ piezoelectric
materials. In the case of BF–0.33BT composition (Fig.b), a shallow
P–E loop with suppressed remnant polarization is observed,
which are the features observed in ‘‘hard’’ piezoelectrics.

这看不明白这个(Fig.a)showed large remnant polarization
and a steep slope of the P–E curve near the observed coercive
field, as commonly observed in ‘‘soft’’ piezoelectric,而Fig.b就是a shallow
P–E loop with suppressed remnant polarization成硬压电体?请教下啊,我看Fig.a的Ec大于Fig.b的Ec啊?应该Fig.a是硬压电体,Fig.b是软压电体啊
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fujian0715

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文献

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enquan123(金币+1):鼓励交流! 2010-09-08 14:04:58
guxue(金币+1):鼓励交流 2010-09-10 15:29:10
引用回帖:
Originally posted by cordierite at 2009-12-28 14:53:49:
This composition (Fig.a)showed large remnant polarization
and a steep slope of the P–E curve near the observed coercive
field, as commonly observed in ‘‘soft’’ piezoelectric
materials. In ...

请问你引用的是哪篇文献,能把文献来源告诉我吗,如果有文献更好了,我的邮箱是fujian0715@126.com
3楼2010-09-08 11:23:37
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pztchina

捐助贵宾 (正式写手)

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Fig (a) 的P-E loop 很肥很大  EC 当然很大了 很容易看的出来啊 (fig (a)的 EC 差不多为fig (b)的两倍). 这种soft PZT 通常Strain 是个butterfly-like 蝴蝶样子

Fig (b)的P-E loop 明显很窄了  Corecive field 要小很多 这种通常是hard PZT 他们的strain底部有点圆 和 soft-pzt的 buttefly loops 有明显的区别..
2楼2010-01-21 23:47:23
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liangkuai

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guxue(金币+1):鼓励交流 2010-09-10 15:29:19
同样关心,可以把该文献名字或链接发一下么?
4楼2010-09-10 14:00:43
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