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Thin quartz ceramic part and efficient preparation method thereof
The invention relates to a thin quartz ceramic component and an efficient preparation method thereof. The fused quartz powder is modified by adding an active agent; the agglomeration effect of fine powder particles is reduced; the forming and sintering defects are reduced, the uniform and efficient biscuit preparation is realized by adopting a dry pressing and cold isostatic pressing combined forming process, and the sintering of the fused quartz ceramic is promoted by introducing the high-surface-energy nano powder, so that the fused quartz is densified under the non-crystallization or microcrystal condition, and the excellent comprehensive performance is maintained. The preparation method is scientific, reasonable, simple, feasible and convenient to implement. The prepared thin quartz ceramic part has no defects such as macroscopic pores and spots on the surface, is high in strength and good in wave permeability, is subjected to water cooling treatment for three times after being subjected to heat preservation at 410 DEG C for 30 minutes, and has no cracks and good thermal shock resistance. The strength of a furnace sample is greater than or equal to 50 MPa, the dielectric constant is 2.98-3.04, and the strength of a water-cooled sample is greater than or equal to 43 MPa after the water-cooled sample is subjected to heat preservation at 1200 DEG C for 5 minutes.
本发明涉及一种薄型石英陶瓷部件及其高效制备方法。通过添加活性剂对熔融石英粉料进行改性，减少细粉颗粒团聚效应，进而降低成型和烧成缺陷，采取干压与冷等静压组合的成型工艺实现均匀、高效的素坯制备，引入高表面能的纳米粉体来促进熔融石英陶瓷的烧结，使熔融石英在不析晶或微晶条件下实现致密化，保持优异的综合性能。该制备方法科学合理，简单易行，便于实施。采用该方法制备的薄型石英陶瓷部件无表面肉眼可见气孔、斑点等缺陷、强度高、透波性好、部件410℃保温30min后水冷处理三次，无裂纹，抗热震性好。随炉试样强度≥50MPa，介电常数2.98‑3.04之间，1200℃保温5min后水冷样的强度≥43MPa。
Thin quartz ceramic part and efficient preparation method thereof
The invention relates to a thin quartz ceramic component and an efficient preparation method thereof. The fused quartz powder is modified by adding an active agent; the agglomeration effect of fine powder particles is reduced; the forming and sintering defects are reduced, the uniform and efficient biscuit preparation is realized by adopting a dry pressing and cold isostatic pressing combined forming process, and the sintering of the fused quartz ceramic is promoted by introducing the high-surface-energy nano powder, so that the fused quartz is densified under the non-crystallization or microcrystal condition, and the excellent comprehensive performance is maintained. The preparation method is scientific, reasonable, simple, feasible and convenient to implement. The prepared thin quartz ceramic part has no defects such as macroscopic pores and spots on the surface, is high in strength and good in wave permeability, is subjected to water cooling treatment for three times after being subjected to heat preservation at 410 DEG C for 30 minutes, and has no cracks and good thermal shock resistance. The strength of a furnace sample is greater than or equal to 50 MPa, the dielectric constant is 2.98-3.04, and the strength of a water-cooled sample is greater than or equal to 43 MPa after the water-cooled sample is subjected to heat preservation at 1200 DEG C for 5 minutes.
本发明涉及一种薄型石英陶瓷部件及其高效制备方法。通过添加活性剂对熔融石英粉料进行改性，减少细粉颗粒团聚效应，进而降低成型和烧成缺陷，采取干压与冷等静压组合的成型工艺实现均匀、高效的素坯制备，引入高表面能的纳米粉体来促进熔融石英陶瓷的烧结，使熔融石英在不析晶或微晶条件下实现致密化，保持优异的综合性能。该制备方法科学合理，简单易行，便于实施。采用该方法制备的薄型石英陶瓷部件无表面肉眼可见气孔、斑点等缺陷、强度高、透波性好、部件410℃保温30min后水冷处理三次，无裂纹，抗热震性好。随炉试样强度≥50MPa，介电常数2.98‑3.04之间，1200℃保温5min后水冷样的强度≥43MPa。
Thin quartz ceramic part and efficient preparation method thereof
一种薄型石英陶瓷部件及其高效制备方法
ZHAI PING (author) / WANG HONGSHENG (author) / CHEN DAQIAN (author) / WEI QIHONG (author) / LUAN QIANG (author) / ZHOU CHANGLING (author) / WANG CHANGZHENG (author)
2020-09-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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