JP2008137834A5 - - Google Patents
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- Publication number
- JP2008137834A5 JP2008137834A5 JP2006324772A JP2006324772A JP2008137834A5 JP 2008137834 A5 JP2008137834 A5 JP 2008137834A5 JP 2006324772 A JP2006324772 A JP 2006324772A JP 2006324772 A JP2006324772 A JP 2006324772A JP 2008137834 A5 JP2008137834 A5 JP 2008137834A5
- Authority
- JP
- Japan
- Prior art keywords
- hexavalent
- elements
- restraining force
- valence
- piezoelectric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000000694 effects Effects 0.000 description 2
- 230000000452 restraining Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
Description
一方、第３副成分、例えばＷは６価であり、４価のサイトに対して価数が大きい、一般にドナーと呼ばれる元素である。
Ｗのように価数が大きい元素は他の元素から受ける拘束力が大きいため、焼成時の動き（拡散）が遅く、焼結性を低下させるおそれがある。しかしながら、このような他の元素から受ける拘束力が大きい元素は圧電効果をソフト化して、圧電本来の特性を改善するものと解される。他の第３副成分も、５価あるいは６価をとるため、同様の効果を奏する。
On the other hand, the third subcomponent, for example, W is an element generally called a donor, which is hexavalent and has a large valence with respect to a tetravalent site.
An element having a large valence such as W has a large restraining force from other elements, so that the movement (diffusion) during firing is slow, and the sinterability may be reduced. However, it is understood that an element having a large restraining force from such other elements softens the piezoelectric effect and improves the original characteristics of the piezoelectric element. Other third subcomponents also have the same effect because they are pentavalent or hexavalent.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006324772A JP4793579B2 (en) | 2006-11-30 | 2006-11-30 | Piezoelectric ceramic composition and multilayer piezoelectric element |
| US11/944,808 US7528531B2 (en) | 2006-11-30 | 2007-11-26 | Piezoelectric ceramic composition and laminated piezoelectric element |
| DE102007057474A DE102007057474B4 (en) | 2006-11-30 | 2007-11-29 | Piezoelectric ceramic composition and laminated piezoelectric element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006324772A JP4793579B2 (en) | 2006-11-30 | 2006-11-30 | Piezoelectric ceramic composition and multilayer piezoelectric element |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2008137834A JP2008137834A (en) | 2008-06-19 |
| JP2008137834A5 true JP2008137834A5 (en) | 2009-07-23 |
| JP4793579B2 JP4793579B2 (en) | 2011-10-12 |
Family
ID=39599705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006324772A Active JP4793579B2 (en) | 2006-11-30 | 2006-11-30 | Piezoelectric ceramic composition and multilayer piezoelectric element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4793579B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011112008B4 (en) * | 2011-08-30 | 2018-01-11 | Epcos Ag | Piezoelectric component and method for producing a piezoelectric component |
-
2006
- 2006-11-30 JP JP2006324772A patent/JP4793579B2/en active Active
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