Improved preparation method of nano composite thermoelectric material

The invention discloses an improved preparation method of a nano composite thermoelectric material in the technical field of preparation of nano thermoelectric materials. The improved preparation method comprises the following steps: smelting Cu, Se and La block raw materials into cast ingots by ado...

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Hauptverfasser: CHEN ZHE, HE CUIQUN, HUAN HEBO, ZHANG JUNHONG, HE XUELONG, ZHOU JING, HU RUI, FU KAI, XU GUODONG, ZOU PEI, YU XUEFENG, XU FANG, HUA YAO
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creator CHEN ZHE
HE CUIQUN
HUAN HEBO
ZHANG JUNHONG
HE XUELONG
ZHOU JING
HU RUI
FU KAI
XU GUODONG
ZOU PEI
YU XUEFENG
XU FANG
HUA YAO
description The invention discloses an improved preparation method of a nano composite thermoelectric material in the technical field of preparation of nano thermoelectric materials. The improved preparation method comprises the following steps: smelting Cu, Se and La block raw materials into cast ingots by adopting induction smelting equipment; the S powder weighed according to the chemical formula ratio and the crushed cast ingot thermoelectric material are put into a ball milling device together, and the ball milling device is used for grinding the S powder and the cast ingot thermoelectric material; in the grinding process, the ball-milling device can fully grind the unqualified cast ingots and powder, and the qualified powder can be fed into a graphite mold by the ball-milling device; placing the graphite mold loaded with the primary ball-milled powder in a spark plasma sintering cavity, and sintering the graphite mold into a block in a vacuum atmosphere; crushing the sintered blocks, and carrying out secondary ball
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subjects CASTING
CRUSHING, PULVERISING, OR DISINTEGRATING
CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
MILLING GRAIN
PERFORMING OPERATIONS
POWDER METALLURGY
PREPARATORY TREATMENT OF GRAIN FOR MILLING
TRANSPORTING
WORKING METALLIC POWDER
title Improved preparation method of nano composite thermoelectric material
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