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Ceramic material with near-zero expansion coefficient at ultra-wide temperature and preparation method thereof
The invention relates to the technical field of near-zero expansion ceramic materials, in particular to a ceramic material with a near-zero expansion coefficient at an ultra-wide temperature and a preparation method thereof.The ceramic material has the near-zero expansion coefficient at the ultra-wide temperature and comprises Ta16Mo18O94 and magnesium oxide, the content of Ta16Mo18O94 accounts for 97.5-99.4 wt% of the total amount of the ceramic material, and the content of magnesium oxide accounts for 97.5-99.4 wt% of the total amount of the ceramic material. The content of the magnesium oxide accounts for 0.6-2.5 wt% of the total amount of the ceramic material. The preparation method comprises the following steps: weighing the raw materials Ta2O5, MoO3 and magnesium oxide, grinding, mixing, molding, and sintering to synthesize. The expansion coefficient of the ceramic material provided by the invention can be close to zero at an ultra-wide temperature, particularly, the near-zero expansion performance at a high temperature can be realized, and the problems of relatively low hardness and poor stability of the existing ceramic material are solved; the method has the advantages of wide application, simple preparation process and low cost, is suitable for industrial production, and is expected to be applied to the high-tech fields of biomedical materials, aerospace equipment, precise instruments and the like.
本发明涉及近零膨胀陶瓷材料技术领域，具体涉及一种具有超宽温度下近零膨胀系数的陶瓷材料及其制备方法，该陶瓷材料具有超宽温度下近零膨胀系数，包括Ta16Mo18O94和氧化镁，所述Ta16Mo18O94的含量占所述陶瓷材料总量的97.5‑99.4wt％，所述氧化镁的含量占所述陶瓷材料总量的0.6‑2.5wt％。其制备方法包括：称取原料Ta2O5、MoO3与氧化镁，进行研磨混合、成型，然后进行烧结合成。本发明提供的陶瓷材料，其膨胀系数能够在超宽温度下均接近于零，尤其能实现在高温下的近零膨胀性能，并解决了现有的陶瓷材料出现的硬度较低和稳定性差的问题；应用广泛，同时制备工艺简单，成本低，适合于工业化生产，可望在生物医用材料、航空航天装备、精密仪器等高技术领域获得应用。
Ceramic material with near-zero expansion coefficient at ultra-wide temperature and preparation method thereof
The invention relates to the technical field of near-zero expansion ceramic materials, in particular to a ceramic material with a near-zero expansion coefficient at an ultra-wide temperature and a preparation method thereof.The ceramic material has the near-zero expansion coefficient at the ultra-wide temperature and comprises Ta16Mo18O94 and magnesium oxide, the content of Ta16Mo18O94 accounts for 97.5-99.4 wt% of the total amount of the ceramic material, and the content of magnesium oxide accounts for 97.5-99.4 wt% of the total amount of the ceramic material. The content of the magnesium oxide accounts for 0.6-2.5 wt% of the total amount of the ceramic material. The preparation method comprises the following steps: weighing the raw materials Ta2O5, MoO3 and magnesium oxide, grinding, mixing, molding, and sintering to synthesize. The expansion coefficient of the ceramic material provided by the invention can be close to zero at an ultra-wide temperature, particularly, the near-zero expansion performance at a high temperature can be realized, and the problems of relatively low hardness and poor stability of the existing ceramic material are solved; the method has the advantages of wide application, simple preparation process and low cost, is suitable for industrial production, and is expected to be applied to the high-tech fields of biomedical materials, aerospace equipment, precise instruments and the like.
本发明涉及近零膨胀陶瓷材料技术领域，具体涉及一种具有超宽温度下近零膨胀系数的陶瓷材料及其制备方法，该陶瓷材料具有超宽温度下近零膨胀系数，包括Ta16Mo18O94和氧化镁，所述Ta16Mo18O94的含量占所述陶瓷材料总量的97.5‑99.4wt％，所述氧化镁的含量占所述陶瓷材料总量的0.6‑2.5wt％。其制备方法包括：称取原料Ta2O5、MoO3与氧化镁，进行研磨混合、成型，然后进行烧结合成。本发明提供的陶瓷材料，其膨胀系数能够在超宽温度下均接近于零，尤其能实现在高温下的近零膨胀性能，并解决了现有的陶瓷材料出现的硬度较低和稳定性差的问题；应用广泛，同时制备工艺简单，成本低，适合于工业化生产，可望在生物医用材料、航空航天装备、精密仪器等高技术领域获得应用。
Ceramic material with near-zero expansion coefficient at ultra-wide temperature and preparation method thereof
一种具有超宽温度下近零膨胀系数的陶瓷材料及其制备方法
GAO QILONG (Autor:in) / ZHENG YI (Autor:in) / LIU JUNJIE (Autor:in) / XIA DUANYANG (Autor:in)
18.03.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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