Rare earth composite material

Abstract

The invention discloses a rare earth composite material, the chemical formula of the rare earth composite material is R-H-M, R is selected from at least one of Nd, Pr, Dy, Tb, Ho, La, Ce, Pm, Sm, Eu, Gd, Er, Tm, Yb, Lu and Y elements, M is selected from at least one of W or Mo, and the rare earth composite material comprises 4.5 wt%-50 wt% of R, 0.08 wt%-1.65 wt% of H and the balance M. The rare earth composite material disclosed by the invention has high energy release and can realize efficient energy release in an oxygen-free environment, and the application environment of a metal energy release material is remarkably improved.

Description

technical field [0001] The invention relates to metal materials, in particular to a rare earth composite material. Background technique [0002] The currently known metal energy-releasing materials have energy-releasing mechanisms: firstly, elements that react easily with oxygen react with oxygen to release a large amount of heat; secondly, the reaction between metals or between metals and intermediate products. At present, metal energy-releasing materials mainly use highly active elements such as Zr and Al as the main energy-releasing elements, which achieve combustion effects in environments with high air or oxygen content, but usually release energy in low-pressure anoxic and underwater environments. Poor, and its mechanical properties are insufficient, it is difficult to be used in structural parts. [0003] As a highly active material, rare earth metals have a combustion energy release value much higher than existing metal energy release materials. However, the activi...

AI Technical Summary

Problems solved by technology

However, rare earth metals are too active to be directly stored in the air for a long time in a simple state, and the energy release effect will become poor after forming an intermetallic compound with other metals.

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