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Wave-transparent silicon nitride ceramic radome and preparation method thereof
The invention discloses a wave-transparent silicon nitride ceramic radome and a preparation method thereof. The preparation method of the wave-transparent silicon nitride ceramic radome comprises thefollowing process steps: preparing granulation powder, molding the granulation powder to prepare a blank, carrying out heat treatment on the blank, precisely processing the blank, coating a high-temperature-resistant wave-transparent coating and the like. The wave-transparent silicon nitride ceramic radome has relatively high mechanical strength and wave-transparent coefficient and relatively lowdielectric constant and mechanical loss, meets the performance requirements of the ceramic radome, and is suitable for being used in the aerospace industry.
本发明公开了透波氮化硅陶瓷天线罩及其制备方法。所述透波氮化硅陶瓷天线罩的制备方法包括制备造粒粉体、造粒粉体成型制备毛坯、毛坯热处理、毛坯精密加工、涂覆耐高温透波涂料等工艺步骤。本发明所述透波氮化硅陶瓷天线罩具有较高的机械强度和透波系数，以及较低的介电常数和机械损耗，满足陶瓷天线罩的性能要求，适合在航空航天行业使用。
Wave-transparent silicon nitride ceramic radome and preparation method thereof
The invention discloses a wave-transparent silicon nitride ceramic radome and a preparation method thereof. The preparation method of the wave-transparent silicon nitride ceramic radome comprises thefollowing process steps: preparing granulation powder, molding the granulation powder to prepare a blank, carrying out heat treatment on the blank, precisely processing the blank, coating a high-temperature-resistant wave-transparent coating and the like. The wave-transparent silicon nitride ceramic radome has relatively high mechanical strength and wave-transparent coefficient and relatively lowdielectric constant and mechanical loss, meets the performance requirements of the ceramic radome, and is suitable for being used in the aerospace industry.
本发明公开了透波氮化硅陶瓷天线罩及其制备方法。所述透波氮化硅陶瓷天线罩的制备方法包括制备造粒粉体、造粒粉体成型制备毛坯、毛坯热处理、毛坯精密加工、涂覆耐高温透波涂料等工艺步骤。本发明所述透波氮化硅陶瓷天线罩具有较高的机械强度和透波系数，以及较低的介电常数和机械损耗，满足陶瓷天线罩的性能要求，适合在航空航天行业使用。
Wave-transparent silicon nitride ceramic radome and preparation method thereof
透波氮化硅陶瓷天线罩及其制备方法
FANG LIUXIN (author)
2020-04-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C09D
Überzugsmittel, z.B. Anstrichstoffe, Firnisse oder Lacke
,
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS
/
D01F
Chemische Gesichtspunkte bei der Herstellung von produzierten Filamenten, Zwirnen, Fasern, Borsten oder Bändern
,
CHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
/
H01Q
Antennen
,
ANTENNAS, i.e. RADIO AERIALS
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