IEC TR 61807:1999
Magnetic properties of magnetically hard materials at elevated temperatures - Methods of measurement
Abstract
Provides methods for measuring magnetically hard materials, at elevated temperatures. Magnetically hard materials (permanent magnet materials) are classified in IEC 60404-1 and their properties are specified in IEC 60404-8-1.
The methods of measurement of the magnetic properties of magnetically hard materials at room temperature have been specified in IEC 60404-5 for closed magnetic circuits and in IEC 60404-7 for open magnetic circuits, respectively. The applications of magnetically hard materials are now expanding to elevated temperatures and it is therefore required to specify and guarantee the magnetic properties of these materials over their working temperature range.
In IEC 60404-8-1 temperature coefficients of remanence (or saturation) and J-coercivity have been specified in addition to basic properties such as maximum magnetic energy product ((BH)max), remanence (Br), B-coercivity (HcB), J-coercivity (HcJ), recoil permeability (µrec) and density.
Additional information
Publication type | Technical Report |
---|---|
Publication date | 1999-10-20 |
Edition | 1.0 |
Available language(s) | English/French |
TC/SC | TC 68 - Magnetic alloys and steelsrss |
ICS | 17.220.99 - Other standards related to electricity and magnetism 29.030 - Magnetic materials |
Stability date | 2030 |
Pages | 25 |
File size | 202 KB |
The following test report forms are related:
Share your publications
Learn how to share your publications with your colleagues, using networking options.
Payment information
Our prices are in Swiss francs (CHF). We accept all major credit cards (American Express, Mastercard and Visa, JCB and CUP), PayPal and bank transfers as form of payment.
Keep in touch
Keep up to date with new publication releases and announcements with our free IEC Just Published email newsletter.
Contact customer services
Please send your enquiry by email or call us on +41 22 919 02 11 between 09:00 – 16:00 CET Monday to Friday.