Figure 10.
Signal received by Nd-F-B and SmCo EMAT on steel at (a) room temperature; (b) 250 °C; (c) 500 °C; (d) amplitude drop against temperature rise.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.