Microstructure of Alkoxide-Prepared Lead Zirconate Titanate Actuator
| Autor: | Nishino Naoya, Utsuo Kihara, Takashi Nomura, Kenji Murakami, Minoru Hagino, Nagaya Okada, Kenji Ishikawa |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Materials science
General Engineering General Physics and Astronomy Mineralogy Microstructure Lead zirconate titanate Piezoelectricity Grain size chemistry.chemical_compound Grain growth chemistry Transmission electron microscopy visual_art Alkoxide visual_art.visual_art_medium Ceramic Composite material |
| Zdroj: | Japanese Journal of Applied Physics. 31:3041 |
| ISSN: | 1347-4065 0021-4922 |
| DOI: | 10.1143/jjap.31.3041 |
| Popis: | A low-hysteresis lead zirconate titanate (PZT) actuator with fine-grained ceramics is realized by an alkoxide method followed by a hot isostatic press (HIP) or a hot-press method. The HIP or the hot-press method is effective for increasing the density of the fine-grained actuator without further grain growth. It is concluded from the transmission electron microscopy (TEM) observations that the fine-grained ceramics are composed of grains with a size of around 1 µm, which include still smaller particles ranging from 20 nm to 50 nm in size. The smaller particles seem to be traces of the boundaries of the alkoxide-prepared starting powders. The improved hysteresis characteristics may be related to the traces left in the component grains. |
| Databáze: | OpenAIRE |
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