ADJUSTABLE DEFORMATION COMPOSITE STRUCTURE USING HYDROGEN-INDUCED EXPANSION EFFECT AND PREPARATION METHOD THEREFOR

WIPO Patent Application WO/2021/115281

A1

Disclosed are an adjustable deformation composite structure using a hydrogen-induced expansion effect and a preparation method therefor. The hydrogen-induced expansion effect means that some metals absorb hydrogen in a hydrogen atmosphere and at a certain temperature to produce a volume expansion effect. Reactions between the metals and hydrogen are reversible reactions. When the hydrogen partial pressure is reduced or the temperature is increased, the hydrogen in the metals can be removed, so that the metals can be restored to the original state thereof; and under the stimulation of external hydrogen and heat, a complex of a hydrogen-absorbing metal and another non-hydrogen-absorbing material can undergo an adjustable deformation as designed, such that the material can undergo a reversible shape change. Provided is a composite material structure with reversible and adjustable deformation at a medium-to-high temperature in a hydrogen-containing atmosphere and a preparation method therefor. The method can be used for a 4D printing composite material, and can be used for intelligent shape adjustments operating at a medium-to-high temperature.

ZHOU CHENGSHANG (CN)
LIU YONG (CN)
DUAN ZHONGYUAN (CN)

PCT/CN2020/134640

June 17, 2021

December 08, 2020

Click for automatic bibliography generation  

UNIV CENTRAL SOUTH (CN)

B22F5/00; B23P15/00; B32B15/00; C22C1/04

CN111687530A	2020-09-22
CN106715327A	2017-05-24
CN102218592A	2011-10-19
CN107695509A	2018-02-16
CN105385869A	2016-03-09
CN102530860A	2012-07-04
US20010005556A1	2001-06-28
CN107074535A	2017-08-18

CHANGSHA RONG ZHI PATENT AGENCY (CN)

View/Download PDF      PDF Help

Previous Patent: ACTIVATED CARBON SOUND-ABSORBING GRANULES AND SOUND-PRODUCING DEVICE

Next Patent: A METHOD FOR OPERATING A TRANSPORTATION SYSTEM