Ferromagnetic metal material and preparation method and application thereof

A ferromagnetic metal, press forming technology, applied in the direction of magnetic materials, inorganic materials, magnetic objects, etc., can solve the problems of weak electronic transition, limited application, low temperature of ferromagnetic long program, and achieve good magnetic anisotropy characteristics Effect
CN113481420AActive Publication Date: 2021-10-08HENAN UNIVERSITY OF TECHNOLOGY
8 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN UNIVERSITY OF TECHNOLOGY
Publication Date
2021-10-08

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a ferromagnetic metal material. The the ferromagnetic metal material is characterized in that the chemical formula is La3MnAs5; the crystal structure is a hexagonal system; the space group is P63 / mcm; the corresponding space group number is 193; the crystal structure is formed by connecting trimerized MnAs6 octahedrons in a face sharing mode in the c-axis direction and is of a one-dimensional chain structure; in the ab plane, MnAs6 chains form a triangular lattice; the chains are arranged in parallel; and the distance between the chains is a lattice constant a. The ferromagnetic metal material is prepared through the following steps that metal La powder, metal Mn powder and As powder are fully ground and mixed according to the molar ratio of 3 to 1 to 5; then the ground mixture is pressed and formed through a tablet press; and finally sintering is conducted at the pressure of 3 to 8 GPa and the temperature of 1200 to 1400 DEG C to obtain the ferromagnetic metal material. The ferromagnetic metal material disclosed by the invention has a typical one-dimensional crystal structure, a relatively high magnetic transformation temperature and a relatively good magnetic anisotropy characteristic.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of materials, and in particular relates to a ferromagnetic metal material and its preparation method and application. Background technique

[0002] As a class of important basic functional materials, ferromagnetic metal materials have been widely used in many fields such as electronics, automation, communication, medical treatment and daily necessities. At the same time, ferromagnetic materials are also used in information storage, processing and transmission. play an important role. Therefore, as an excellent high-density magnetic recording material, electromagnetic wave absorbing material, biological and medical engineering material, ferromagnetic metal materials have been widely studied and concerned by the majority of scientific researchers.

[0003] The one-dimensional spin chain system exhibits novel physical properties different from two-dimensional or three-dimensional systems due to the reduction o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More