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发明公开
CN108963064A 热压烧结装置、微纳多孔结构的块体热电材料及其制法 有权

热压烧结装置、微纳多孔结构的块体热电材料及其制法
摘要：
本发明提供了一种热压烧结装置，其包括上电极、下电极、水冷真空室和模具组，其中，模具组包括模具主体、上压头和下压头，模具主体具有高度方向的通孔，上压头和下压头的高度之和小于模具主体的高度；工作时，模具组置于水冷真空室内，上电极和下电极将上压头和下压头压入模具主体的通孔直至上压头和下压头分别与模具主体的上端面和下端面平齐，模具主体的通孔内形成容纳样品的样品室。本发明还涉及利用上述装置制备热电材料的方法，以及化学式为Mg3.2‑xMnxSb1.5‑yBi0.5Tey的多尺度微纳多孔结构的热电材料，其中0.0125≤x≤0.1，0.01≤y≤0.05。
摘要（英）：

The present invention provides a hot-press sintering device. The device comprises a top electrode, a bottom electrode, a water-cooling vacuum chamber and a mould group. The mould group comprises a mould main body, an upper pressing head and a lower pressing head, the mould main body is provided with a through hole in a height direction, the sum of the heights of the upper pressing head and the lower pressing head is smaller than the height of the mould main body, when the hot-press sintering device is operated, the mould set is arranged in the water-cooling vacuum chamber, the top electrode and the bottom electrode press the upper pressing head and the lower pressing head into the through hole of the mould main body until the upper pressing head and the lower pressing head to be leveled with the upper end face and the lower end face of the mould main body, and the through hole of the mould main body is internally provided with a sample chamber holding samples. The present invention further relates to a method for preparing thermoelectric materials through adoption of the device mentioned above, and thermoelectric materials of a multi-scale micro-nano porous structure with a chemical formula of Mg3.2-xMnxSb1.5-yBi0.5Tey, wherein 0.0125<=x<=0.1, and 0.01<=y<=0.05.

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