Enhancement of coercivity and saturation magnetization of Al<sup>3+</sup> substituted M-type Sr-hexaferrites

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Enhancement of coercivity and saturation magnetization of Al³⁺ substituted M-type Sr-hexaferrites

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作者：F. Rhein^a ; ^c ; ^{fabian.rhein@siemens.com" class="auth_mail" title="E-mail the corresponding author} ; R. Karmazin^a ; M. Krispin^a ; T. Reimann^b ; O. Gutfleisch^c
关键词：Hard magnetic materials ; Sr-ferrite ; Mechanochemical processing ; Annealing treatment ; Nanocrystalline structure ; Magnetic measurements
刊名：Journal of Alloys and Compounds
出版年：2017
出版时间：5 January 2017
年：2017
卷：690
期：Complete
页码：979-985
全文大小：1331 K

文摘

class="label">•: SrAlxFe12-xO19 (x = 0–4) were synthesized via a mechanochemical activation.
class="label">•: Deterioration of magnetic properties by milling depends on Al content.
class="label">•: A subsequent annealing treatment in NaCl melt at 1000 °C promotes recrystallization.
class="label">•: Annealing treatment in NaCl melt at 1000 °C increases magnetic properties.
class="label">•: Coercivity is explained by single domain particles and correlated to initial curve.

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