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Rare earth doped cordierite ceramic material and preparation method thereof
The invention discloses a rare earth doped cordierite ceramic material and a preparation method thereof, the chemical expression of the rare earth doped cordierite ceramic material is (Mg1-xREx) 2Al4Si5O18 + x, 0 < = x < = 0.5, and RE is one of Y, Yb, Lu, Tm and Er; the grain size of the rare earth doped cordierite ceramic material is 0.2-8 [mu] m, the porosity is 0-10%, the high-temperature thermal conductivity is not higher than 1.5 W/(m.K), and the thermal expansion coefficient is (2.0-5.0) * 10 <-6 >/K. The preparation method is a solid-phase reaction method. The prepared rare earth doped cordierite ceramic material is wide in component range, the thermal conductivity and the thermal expansion coefficient are flexible and adjustable, and the thermal conductivity and the thermal expansion coefficient can be adjusted by changing the doping amount of rare earth elements. A solid-phase reaction method adopted for preparing the rare earth doped cordierite ceramic material is low in raw material cost, simple in process and low in equipment requirement.
本发明公开了一种稀土掺杂堇青石陶瓷材料及其制备方法，该稀土掺杂堇青石陶瓷材料的化学表达式为(Mg1‑xREx)2Al4Si5O18+x,其中，0≤x≤0.5，RE为Y、Yb、Lu、Tm、Er中的一种；稀土掺杂堇青石陶瓷材料的晶粒尺寸为0.2～8μm，孔隙率为0～10％，高温热导率不高于1.5 W/(m·K)，热膨胀系数为(2.0～5.0)×10‑6/K。制备方法以固相反应法制备得到。本发明所制备的稀土掺杂堇青石陶瓷材料成分范围广，热导率和热膨胀系数灵活可调，可通过改变稀土元素的掺杂量来调节热导率和热膨胀系数。制备稀土掺杂堇青石陶瓷材料所采用的固相反应法，原料成本低，工艺简单，对设备要求低。
Rare earth doped cordierite ceramic material and preparation method thereof
The invention discloses a rare earth doped cordierite ceramic material and a preparation method thereof, the chemical expression of the rare earth doped cordierite ceramic material is (Mg1-xREx) 2Al4Si5O18 + x, 0 < = x < = 0.5, and RE is one of Y, Yb, Lu, Tm and Er; the grain size of the rare earth doped cordierite ceramic material is 0.2-8 [mu] m, the porosity is 0-10%, the high-temperature thermal conductivity is not higher than 1.5 W/(m.K), and the thermal expansion coefficient is (2.0-5.0) * 10 <-6 >/K. The preparation method is a solid-phase reaction method. The prepared rare earth doped cordierite ceramic material is wide in component range, the thermal conductivity and the thermal expansion coefficient are flexible and adjustable, and the thermal conductivity and the thermal expansion coefficient can be adjusted by changing the doping amount of rare earth elements. A solid-phase reaction method adopted for preparing the rare earth doped cordierite ceramic material is low in raw material cost, simple in process and low in equipment requirement.
本发明公开了一种稀土掺杂堇青石陶瓷材料及其制备方法，该稀土掺杂堇青石陶瓷材料的化学表达式为(Mg1‑xREx)2Al4Si5O18+x,其中，0≤x≤0.5，RE为Y、Yb、Lu、Tm、Er中的一种；稀土掺杂堇青石陶瓷材料的晶粒尺寸为0.2～8μm，孔隙率为0～10％，高温热导率不高于1.5 W/(m·K)，热膨胀系数为(2.0～5.0)×10‑6/K。制备方法以固相反应法制备得到。本发明所制备的稀土掺杂堇青石陶瓷材料成分范围广，热导率和热膨胀系数灵活可调，可通过改变稀土元素的掺杂量来调节热导率和热膨胀系数。制备稀土掺杂堇青石陶瓷材料所采用的固相反应法，原料成本低，工艺简单，对设备要求低。
Rare earth doped cordierite ceramic material and preparation method thereof
一种稀土掺杂堇青石陶瓷材料及其制备方法
ZHAO ZIFAN (author) / LEE GUN-WOO (author) / FENG JING (author) / RUAN ZIYANG (author)
2023-04-18
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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