Affiliation:
1. MIIT Key Laboratory of Advanced Display Materials and Devices and School of Materials Science and Engineering, Nanjing University of Science and Technology 1 , Nanjing 210094, China
2. Precision Driving Laboratory, Nanjing University of Aeronautics and Astronautics 2 , Nanjing 210016, China
Abstract
It is a big challenge to in situ monitor the health status of high-temperature magnetic equipment such as electric motors and generators since it is difficult to achieve a high-temperature magnetoelectric sensor. Here, the Pb(Zr0.52Ti0.48)O3 film with a ferroelectric Curie temperature of 400 °C and the Metglas alloy slice with a magnetic Curie temperature of 430 °C were combined by using a high-temperature inorganic glue to achieve a high-temperature magnetoelectric sensor. The magnetoelectric coefficient αE of the flexible sensor is as high as 104 V/(cm Oe) at 25 °C, 63.6 V/(cm Oe) at 200 °C, and 39.7 V/(cm Oe) at 330 °C. Besides, the magnetic sensor has a detection accuracy of ∼0.3 nT at 25–330 °C. Most importantly, the high-temperature sensor is flexible, high precision, low cost, light weight, and low power consumption simultaneously.
Funder
National Natural Science Foundation of China
Fundamental Research Funds for the Central Universities
Subject
General Engineering,General Materials Science