公开(公告)号：US20220149258A1

公开(公告)日：2022-05-12

申请号：US17422953

申请日：2020-01-15

Applicant: TOSOH CORPORATION

Inventor： Yoichiro KODA ,  Ryo AKIIKE ,  Hideto KURAMOCHI

IPC: H01L35/22 ,  C22C28/00 ,  C22C1/04

Abstract: Provided is a silicide-based alloy material with which environmental load can be reduced and high thermoelectric conversion performance can be obtained.
Provided is a silicide-based alloy material including silicon and ruthenium as main components, in which when the contents of silicon and ruthenium are denoted by Si and Ru, respectively, the atomic ratio of the devices constituting the alloy material satisfies the following: 45 atm %≤Si/(Ru+Si)≤70 atm % 30 atm %≤Ru/(Ru+Si)≤55 atm %.

公开(公告)号：US20230183844A1

公开(公告)日：2023-06-15

申请号：US17999050

申请日：2021-05-17

Applicant: TOSOH CORPORATION

Inventor： Ryo AKIIKE ,  Yoichiro KODA ,  Masami MESUDA

IPC: C22C30/00 ,  C22C24/00 ,  H10N10/851 ,  C01B33/06

CPC classification number: C22C30/00 ,  C22C24/00 ,  H10N10/8556 ,  C01B33/06 ,  C22C2202/02 ,  C01P2006/40 ,  C01P2006/32 ,  C01P2002/60

Abstract: A silicide-based alloy material and a device in which the silicide-based alloy material is used are disclosed. The silicide-based alloy material can reduce environmental impact and provide high thermoelectric FIGURE of merit at room temperature. Provided is a silicide-based alloy material comprising, as major components, silver, barium and silicon, wherein atomic ratios of elements that constitute the alloy material are as follows: 9 at %≤Ag/(Ag+Ba+Si)≤27 at %, 20 at %≤Ba/(Ag+Ba+Si)≤53 at %, and 37 at %≤Si/(Ag+Ba+Si)≤65 at %, where Ag represents a content of the silver, Ba represents a content of the barium and Si represents a content of the silicon, and the silicide-based alloy material has an average grain size of less than or equal to 20 μm.