US Patent Application 18324341. COATED RARE EARTH-IRON-NITROGEN-BASED MAGNETIC POWDER, PRODUCTION METHOD THEREOF, MAGNETIC MATERIAL FOR MAGNETIC FIELD AMPLIFICATION, AND MAGNETIC MATERIAL FOR HYPER-HIGH FREQUENCY ABSORPTION simplified abstract
Contents
- 1 COATED RARE EARTH-IRON-NITROGEN-BASED MAGNETIC POWDER, PRODUCTION METHOD THEREOF, MAGNETIC MATERIAL FOR MAGNETIC FIELD AMPLIFICATION, AND MAGNETIC MATERIAL FOR HYPER-HIGH FREQUENCY ABSORPTION
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 COATED RARE EARTH-IRON-NITROGEN-BASED MAGNETIC POWDER, PRODUCTION METHOD THEREOF, MAGNETIC MATERIAL FOR MAGNETIC FIELD AMPLIFICATION, AND MAGNETIC MATERIAL FOR HYPER-HIGH FREQUENCY ABSORPTION - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Original Abstract Submitted
COATED RARE EARTH-IRON-NITROGEN-BASED MAGNETIC POWDER, PRODUCTION METHOD THEREOF, MAGNETIC MATERIAL FOR MAGNETIC FIELD AMPLIFICATION, AND MAGNETIC MATERIAL FOR HYPER-HIGH FREQUENCY ABSORPTION
Organization Name
Inventor(s)
Jun Akamatsu of Tokushima-shi (JP)
Satoshi Abe of Tokushima-shi (JP)
Nobuyoshi Imaoka of Anan-shi (JP)
Masahiro Abe of Tokushima-shi (JP)
COATED RARE EARTH-IRON-NITROGEN-BASED MAGNETIC POWDER, PRODUCTION METHOD THEREOF, MAGNETIC MATERIAL FOR MAGNETIC FIELD AMPLIFICATION, AND MAGNETIC MATERIAL FOR HYPER-HIGH FREQUENCY ABSORPTION - A simplified explanation of the abstract
This abstract first appeared for US patent application 18324341 titled 'COATED RARE EARTH-IRON-NITROGEN-BASED MAGNETIC POWDER, PRODUCTION METHOD THEREOF, MAGNETIC MATERIAL FOR MAGNETIC FIELD AMPLIFICATION, AND MAGNETIC MATERIAL FOR HYPER-HIGH FREQUENCY ABSORPTION
Simplified Explanation
The abstract describes a coated magnetic powder made of rare earth-iron-nitrogen-based materials. Here are the key points:
- The powder consists of a core region, a first coating portion, and a second coating portion.
- The core region contains rare earth elements (R), iron (Fe), and nitrogen (N).
- The rare earth elements can be Y, Ce, Pr, Nd, Gd, Tb, Dy, Ho, Er, Tm, Lu, or Sm (if Sm is present, it is less than 50% of the total rare earth content).
- The powder is structured in the following order: core region, first coating portion, and second coating portion.
- The first coating portion contains phosphorus (P) and rare earth elements (R), with a higher average atomic concentration of R compared to the core region (but not more than twice).
- The second coating portion has lower average atomic concentrations of P and R compared to the first coating portion.
- Both the first and second coating portions contain iron (Fe).
Overall, this patent application describes a specific composition and structure of a coated magnetic powder using rare earth-iron-nitrogen-based materials.
Original Abstract Submitted
A coated rare earth-iron-nitrogen-based magnetic powder including: a core region; a first coating portion provided outside the core region; and a second coating portion, the core region containing R, Fe, and N, where R represents at least one selected from the group consisting of Y, Ce, Pr, Nd, Gd, Tb, Dy, Ho, Er, Tm, Lu, and Sm, and if Sm is present, Sm constitutes less than 50 atm % of the total R content, the powder including, in an order from the core region, the first coating portion containing P and R, an average atomic concentration of R in the first coating portion being higher than and not higher than twice an average atomic concentration of R in the core region, and the second coating portion having average atomic concentrations of P and R lower than those in the first coating portion, respectively, and containing Fe.
