Preparation method of novel medium-temperature thermoelectric material
The invention provides a preparation method of a novel medium-temperature thermoelectric material. The method comprises the following steps: S1, crushing raw materials into small blocks with a diameter of not more than 30mm, and putting the small blocks on filter paper; S2, weighing the small blocks...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | Chinese English |
Published |
02.02.2021
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The invention provides a preparation method of a novel medium-temperature thermoelectric material. The method comprises the following steps: S1, crushing raw materials into small blocks with a diameter of not more than 30mm, and putting the small blocks on filter paper; S2, weighing the small blocks according to a certain stoichiometric ratio, adding the small blocks into a crucible and then starting to smelting so as to acquire a cast ingot; S3, grinding the cast ingot, and screening a powder obtained after grinding through a mesh screen; S4, putting the sieved powder into a mold to be subjected to hot pressed sintering, and acquiring a sintered material; and S5, putting the sintered material into an annealing furnace for annealing treatment to obtain the novel medium-temperature thermoelectric material. The preparation method has the beneficial effects that problems that a TAGS system material is also volatilized seriously in a working temperature range, electric heating performanceand mechanical performanc |
---|---|
Bibliography: | Application Number: CN202011192316 |