[22a-B202-1~9] 13.2 Exploratory Materials, Physical Properties, Devices

11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)

[22a-B202-9] Development of HP-SPS apparatus and physical properties of Mg₂Si thermoelectric materials synthesized by this apparatus

〇YOSHIHISA Mori¹, KENGO Nakai¹, DAISUKE Yamazaki², TAKASHI Yoshino² (1.Okayama Univ. of Sci., 2.Okayama Univ.)

Keywords:

high-pressure synthesis,silicide semiconductor,thermoelectric material

SPS sintering is a method of sintering powders at uniaxial pressures of about 100 MPa and temperatures of about 2500°C, and is actively used in the industrial field of powder metallurgy. Furthermore, high-pressure SPS equipment capable of sintering at ultrahigh pressures of 10 GPa has been developed, and is beginning to be used as a means of developing functional materials in the field of advanced science. We developed a high-pressure cell to be incorporated into a commonly available SPS apparatus, and evaluated the physical properties of Mg2Si thermoelectric materials synthesized using the HP-SPS apparatus.