HUANG Jianfeng (1999-), male, Master candidate. E-mail: huangjianfeng21@mails.ucas.ac.cn
Piezoelectric materials are an extremely important functional materials that can be used for piezoelectric sensors, transducers and actuators due to their positive/reverse piezoelectric effects. These materials are widely used in aerospace, nuclear energy and medical fields. Among them, in the fields of aerospace and nuclear energy, piezoelectric materials have a harsh service environment of high radiation, which puts higher requirements on the radiation resistance of piezoelectric materials. This review summarized the effect of radiation on the crystal structure and electrical properties of piezoelectric materials with a perovskite structure, i.e., lead zirconate titanate (Pb(Zr, Ti)O3), potassium niobate (KNbO3), and barium titanate (BaTiO3) as well as bismuth layered structure piezoelectric materials such as Bi4Ti3O12. It is indicated that at high doses of radiation, the phase structure of piezoelectric materials is maintained in the ferroelectric phase, but the grains are damaged to some extent, while the electrical properties of piezoelectric materials generally weaken with increasing radiation doses. However, radiation can improve the fatigue resistance of piezoelectric materials, and radiation can be thus used as a promising way to modify piezoelectric materials.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |