Molybdenum foam with high porosity and controllable three-dimensional through-holes and its preparation method

A high-porosity, foam technology, applied in the field of porous metal materials, can solve the problems of affecting material properties, foaming agent segregation, affecting the uniformity and connectivity of pores, etc., and achieves simple preparation method, high porosity, good isotropic effect
CN104404289BActive Publication Date: 2016-10-05HUNAN UNIV OF SCI & TECH
3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUNAN UNIV OF SCI & TECH
Publication Date
2016-10-05

Smart Images

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

Abstract

The invention discloses a high-pore controllable three-dimensional through hole foam molybdenum and a preparation method thereof. The molybdenum pore is in the shape of a three-dimensional sphere, and the pore is formed by mutually communicating generating holes with interstitial holes. The pore rate of the molybdenum structure is higher and is controllable, the pore is in the shape of a regular sphere, and the pore has isotropic mechanical characteristic. The preparation method is based on a traditional powder metallurgy method, a foaming method is combined, a novel layer spread method for material loading is adopted, and then, the foam molybdenum is obtained through pressing, dissolving and sintering. The preparation method provided by the invention is simple, the cost is low, the production cycle is short, pores are distributed uniformly, and the foam molybdenum has favorable mechanical and energy absorption properties.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a porous metal material, in particular to a high-porosity controllable three-dimensional through-hole foamed molybdenum with high porosity and uniform connected three-dimensional pore structure and a preparation method thereof. Background technique

[0002] Porous metal materials combine the characteristics of metals such as electrical conductivity, thermal conductivity, weldability and plasticity, and the unique functional properties of porous structures such as high permeability, energy absorption, capillarity, fire resistance and heat insulation. They are widely used in industry for filtration and separation, In high-speed fields such as shock absorption, fire protection, penetration devices and aerospace. According to comprehensive literature reports, most of the research on porous metal materials focuses on light metals and low melting point materials, which greatly restricts the application of porous materials in extreme ...

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