Perovskite-type ceramic compact and method for manufacturing same
US-2024425384-A1 · Dec 26, 2024 · US
Piezoelectric material
US9515249B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9515249-B2 |
| Application number | US-201214130670-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 26, 2012 |
| Priority date | Jul 5, 2011 |
| Publication date | Dec 6, 2016 |
| Grant date | Dec 6, 2016 |
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Abstract
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A lead-free piezoelectric material that has stable, excellent piezoelectric constant and mechanical quality factor in a wide operating temperature range is provided. A piezoelectric material include a perovskite-type metal oxide represented by (Ba 1-x Ca x ) a (Ti 1-y Zr y )O 3 (where 1.00≦a≦1.01, 0.155≦x≦0.300, 0.041≦y≦0.069) as a main component, and manganese incorporated in the perovskite-type metal oxide. The manganese content relative to 100 parts by weight of the perovskite-type metal oxide is 0.12 parts by weight or more and 0.40 parts by weight or less on a metal basis.
First claim
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The invention claimed is: 1. A piezoelectric material comprising: a perovskite-type metal oxide represented by general formula (1) as a main component (Ba 1-x Ca x ) a (T 1-y Zr y )O 3 (where 1.00 ≦a ≦1.01, 0.155 ≦x ≦0.300, 0.041 ≦y ≦0.069) (1) and a manganese component, wherein a manganese content relative to 100 parts by weight of the perovskite-type metal oxide is 0.12 parts by weight or more and 0.40 parts by weight or less on a metal basis, wherein an auxiliary…
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- C04B35/4682Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9515249B2 cover?
- A lead-free piezoelectric material that has stable, excellent piezoelectric constant and mechanical quality factor in a wide operating temperature range is provided. A piezoelectric material include a perovskite-type metal oxide represented by (Ba 1-x Ca x ) a (Ti 1-y Zr y )O 3 (where 1.00≦a≦1.01, 0.155≦x≦0.300, 0.041≦y≦0.069) as a main component, and manganese incorporated in the perovskite-t…
- Who is the assignee on this patent?
- Hayashi Jumpei, Furuta Tatsuo, Shimizu Yasushi, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification C04B35/4682. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 06 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).