The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Methods for producing acicular barium ferrite particles for use in coated tape media were studied, and their magnetic and other properties were investigated. Acicular ??-FeOOH particles were dispersed in a BaCl2 solution, and NaHCO3 added to precipitate BaCO3 on the particle surfaces. After washing and addition of B2O3, P2O5, or Bi2O3, particles were fired at 800 to 900??C; addition of B2O3 and firing...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.