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日本名古屋大学大学院杉本典弘等人以高纯度粒径为30~50μm的Mn2N、Zn、Sn为原料,采用固相合成法,制出Mn3.1Zn0.5Sn0.4N,作为热膨胀抑制剂,再采用放电等离子烧结法,以低温短时间烧结工艺。同Al(3μm)、Ti(45μm)、Cu(1μm)等金属粉进行复合,制成5mm×5mm×12mm的试样,用激光膨胀仪测定热膨胀系数,用X-射线衍射仪测定晶体结构。本研究得到金属-锰氮化合物复合材料的最大热膨胀系数(α),Ti系复合材料为-2.2×10-6/K,Cu系复合物为-13.6×10-6/K。
Japan’s Nagoya University, Sugimoto Dori and others to high-purity particle size of 30 ~ 50μm Mn2N, Zn, Sn as raw material, the solid phase synthesis method, the system Mn3.1Zn0.5Sn0.4N, as a thermal expansion inhibitor, and then use the discharge Plasma sintering method to low temperature sintering process for a short time. (3 μm), Ti (45 μm) and Cu (1 μm) to prepare a sample of 5 mm × 5 mm × 12 mm. The thermal expansion coefficient was measured with a laser dilatometer, and the crystal structure was measured with an X-ray diffractometer. In this study, the maximum thermal expansion coefficient (α) of the metal-manganese-nitrogen composite was obtained. The Ti-based composite was -2.2 × 10-6 / K and the Cu-based composite was -13.6 × 10-6 / K.