magnetic polarization of ceramics

jfox
Senior Member

Posts: 266

magnetic polarization of ceramics Feb 14, 2017 19:19:29 GMT -6

Quote

Post by jfox on Feb 14, 2017 19:19:29 GMT -6

I brought up polarization of ceramic materials in another thread here is a different example
, I was familiar with using lava flows for for studying the history of earths magnetic field but this has more accurate dating
phys.org/news/2017-02-ancient-jar-earth-magnetic-field.html?utm_source=nwletter&utm_medium=email&utm_campaign=daily-nwletter

Last Edit: Feb 15, 2017 21:35:50 GMT -6 by jfox

Jim
riverpottery.wordpress.com/
www.plus.google.com/+jfoxvideo1/videos/p/pub
www.flickr.com/photos/19075646@N07/with/9593781317/
www.youtube.com/user/jfoxvideo1/videos?shelf_id=0&sort=dd&view=0

Arnie Benton
Moderator

Posts: 204

magnetic polarization of ceramics Feb 15, 2017 8:06:42 GMT -6

Quote

Post by Arnie Benton on Feb 15, 2017 8:06:42 GMT -6

Hi Jim - this research is based on the "fact" that magnetic changes don't occur once the ceramic piece has been fired - what we're wondering is if the magnetic fields can change if the piece is reheated to 13-1400 degrees? I'm still trying to get a basic understanding -

Arnie

jfox Senior Member Posts: 266	magnetic polarization of ceramics Feb 15, 2017 9:53:10 GMT -6 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by jfox on Feb 15, 2017 9:53:10 GMT -6 Yes if you raise it above the curie point of the material .in this case its the iron oxide particles that are polarized. Magnetite has a Curie point of 585 °C; 1,085 °F, Cobalt is 2000 C
	Jim riverpottery.wordpress.com/ www.plus.google.com/+jfoxvideo1/videos/p/pub www.flickr.com/photos/19075646@N07/with/9593781317/ www.youtube.com/user/jfoxvideo1/videos?shelf_id=0&sort=dd&view=0

Post by jfox on Feb 14, 2017 19:19:29 GMT -6

Post by Arnie Benton on Feb 15, 2017 8:06:42 GMT -6

Post by jfox on Feb 15, 2017 9:53:10 GMT -6