Designing a new material for improved ultrasound（课题组在Nature Materials期刊上发表研究论文）
- 发布时间：
- 2018-03-19
- 文章标题：
- Designing a new material for improved ultrasound（课题组在Nature Materials期刊上发表研究论文）
- 内容：
Piezoelectricity is the material property at the heart of medical ultrasound, sonar, active vibration control and many sensors and actuators. A piezoelectric material has the ability to mechanically deform when an electric voltage is applied or to generate electric charge when a mechanical force is applied.
Adding small amounts of a carefully selected rare earth material, samarium, to a high-performance piezoelectric ceramic called lead magnesium niobate-lead titanate (PMN-PT) dramatically increases its piezo performance, the researchers report in Nature Materials this week. This materials-by-design strategy will be useful in designing materials for other applications as well, the team believes.
https://www.nature.com/articles/s41563-018-0034-4
https://www.nature.com/articles/s41563-018-0046-0