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Preparation method of transition metal ion doped rare earth zirconate material
The invention discloses a preparation method of a transition metal ion doped rare earth zirconate material, relates to a preparation method of an ion doped rare earth zirconate material, and solves the technical problem that the existing high-temperature alloy surface thermal protection coating for skin of a super-speed aircraft cannot simultaneously meet the requirements for high emissivity, thermal shock resistance, oxidation resistance and low thermal conductivity. The preparation method comprises the following steps: 1. removing impurities, 2. ball milling and mixing, 3. preparing a green body, and 4. sintering. The preparation method disclosed by the invention has the following advantages: 1. the preparation method is simple in process, low in cost and suitable for mass production; 2. the normal spectral emissivity of the prepared transition metal ion doped rare earth zirconate material Ln2Zr(2-x)MxO7 in the whole wave band of the wave length being 3-14 microns is greater than 0.7, the high emissivity of about 0.9 can be retained in the wave band of the wave length being 9-14 microns, and the thermal protective coating material used as the skin of the super-speed aircraft is of high potential.
Preparation method of transition metal ion doped rare earth zirconate material
The invention discloses a preparation method of a transition metal ion doped rare earth zirconate material, relates to a preparation method of an ion doped rare earth zirconate material, and solves the technical problem that the existing high-temperature alloy surface thermal protection coating for skin of a super-speed aircraft cannot simultaneously meet the requirements for high emissivity, thermal shock resistance, oxidation resistance and low thermal conductivity. The preparation method comprises the following steps: 1. removing impurities, 2. ball milling and mixing, 3. preparing a green body, and 4. sintering. The preparation method disclosed by the invention has the following advantages: 1. the preparation method is simple in process, low in cost and suitable for mass production; 2. the normal spectral emissivity of the prepared transition metal ion doped rare earth zirconate material Ln2Zr(2-x)MxO7 in the whole wave band of the wave length being 3-14 microns is greater than 0.7, the high emissivity of about 0.9 can be retained in the wave band of the wave length being 9-14 microns, and the thermal protective coating material used as the skin of the super-speed aircraft is of high potential.
Preparation method of transition metal ion doped rare earth zirconate material
OUYANG JIAHU (author) / MA YONGHUI (author) / LIU ZHANGUO (author)
2015-06-17
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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