Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Near-zero thermal expansion ceramic material RE2ZrMo5O20 and preparation method thereof
The invention belongs to the technical field of thermal expansion materials, and discloses a near-zero thermal expansion ceramic material and a preparation method thereof. The molecular formula of the compound is RE2ZrMo5O20 (RE = Yb or Tm). The preparation method comprises the following steps: selecting an RE source, a Zr source and a Mo source as raw materials, weighing the raw materials according to the stoichiometric molar ratio of RE to Zr to Mo of 2: 1: 5 in the target product RE2ZrMo5O20, grinding and mixing uniformly, directly sintering the obtained mixed powder or sintering the mixed powder after tabletting at the sintering temperature of 700-800 DEG C for 40-50 hours, and cooling to room temperature to obtain the target product RE2ZrMo5O20. The RE2ZrMo5O20 (RE = Yb or Tm) has a thermal expansion coefficient close to zero, has good thermal stability, is simple in preparation process and low in cost, is suitable for industrial production, and is expected to be widely applied to the high-end technical fields of electronic devices, aerospace, precise instruments and the like.
本发明属于热膨胀材料技术领域，公开了一种近零热膨胀陶瓷材料及其制备方法。分子式为RE2ZrMo5O20（RE=Yb或Tm）。制备步骤如下：选择RE源、Zr源和Mo源作为原料，并按照目标产物RE2ZrMo5O20中化学计量摩尔比RE∶Zr∶Mo=2∶1∶5称重并研磨混合均匀，将得到的混合粉末直接烧结或者压片后烧结，烧结温度为700~800℃、时间为40~50h，冷却至室温，得到目标产物RE2ZrMo5O20。本发明RE2ZrMo5O20（RE=Yb或Tm）有接近于零的热膨胀系数，兼具良好的热稳定性，制备工艺简单，成本低，适合于工业化生产，有望于在电子器件、航空航天及精密仪器等高端技术领域广泛应用。
Near-zero thermal expansion ceramic material RE2ZrMo5O20 and preparation method thereof
The invention belongs to the technical field of thermal expansion materials, and discloses a near-zero thermal expansion ceramic material and a preparation method thereof. The molecular formula of the compound is RE2ZrMo5O20 (RE = Yb or Tm). The preparation method comprises the following steps: selecting an RE source, a Zr source and a Mo source as raw materials, weighing the raw materials according to the stoichiometric molar ratio of RE to Zr to Mo of 2: 1: 5 in the target product RE2ZrMo5O20, grinding and mixing uniformly, directly sintering the obtained mixed powder or sintering the mixed powder after tabletting at the sintering temperature of 700-800 DEG C for 40-50 hours, and cooling to room temperature to obtain the target product RE2ZrMo5O20. The RE2ZrMo5O20 (RE = Yb or Tm) has a thermal expansion coefficient close to zero, has good thermal stability, is simple in preparation process and low in cost, is suitable for industrial production, and is expected to be widely applied to the high-end technical fields of electronic devices, aerospace, precise instruments and the like.
本发明属于热膨胀材料技术领域，公开了一种近零热膨胀陶瓷材料及其制备方法。分子式为RE2ZrMo5O20（RE=Yb或Tm）。制备步骤如下：选择RE源、Zr源和Mo源作为原料，并按照目标产物RE2ZrMo5O20中化学计量摩尔比RE∶Zr∶Mo=2∶1∶5称重并研磨混合均匀，将得到的混合粉末直接烧结或者压片后烧结，烧结温度为700~800℃、时间为40~50h，冷却至室温，得到目标产物RE2ZrMo5O20。本发明RE2ZrMo5O20（RE=Yb或Tm）有接近于零的热膨胀系数，兼具良好的热稳定性，制备工艺简单，成本低，适合于工业化生产，有望于在电子器件、航空航天及精密仪器等高端技术领域广泛应用。
Near-zero thermal expansion ceramic material RE2ZrMo5O20 and preparation method thereof
一种近零热膨胀陶瓷材料RE2ZrMo5O20及其制备方法
GAO QILONG (Autor:in) / ZHENG HANXI (Autor:in) / CHEN XIN (Autor:in) / CHANG LINGYUN (Autor:in)
03.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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