Year: 1992
Type: article
Abstract: The study by single-roller melt spinning and annealing on the [Nd(Fe, M)12]-(Nd2Fe14B) pseudobinary system has led to high-coercivity Nd-Fe-B-M alloys (M is Ti or V/Mo/Al) with both Nd and B contents less than the stoichiometric Nd2Fe14B compound. Optimum values of iHc=11.2 kOe, 4πMr=9 kG and (BH)m=12.5 MGOe were obtained from a Nd10.8Fe82.9B4.4Ti1.9 alloy melt-spun at a wheel velocity of 30 m/s, followed by annealing at 700°C for 1 h. The temperature dependence of coercivity fitted with the Gaunt model, and transmission electron microscopy (TEM) studies suggested that strong domain wall pinning at refined 2-14-1 grains might be the main reason for the high coercivity.
DOI: 10.1143/jjap.31.3323
Institution: Industrial Technology Research Institute
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2010939650