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High-performance low-dielectric microwave dielectric ceramic prepared by low-temperature hot pressing and preparation method thereof
The invention discloses a high-performance low-dielectric microwave dielectric ceramic prepared by low-temperature hot pressing and a preparation method thereof. The method comprises the following steps: weighing NaOH powder and NaCl powder, uniformly dissolving the NaOH powder and the NaCl powder in distilled water, and drying the liquid to obtain NaOH-NaCl mixture powder; caF2 powder is weighed, the obtained NaOH-NaCl mixture powder is added into the CaF2 powder, and the CaF2 powder and the NaOH-NaCl mixture powder are fully ground to be evenly mixed; putting the obtained mixed powder into a mold, putting the mold into a hot press for hot pressing sintering, and obtaining compact CaF2 ceramic after hot pressing is finished; and drying the obtained CaF2 ceramic to constant weight. The microwave ceramic obtained by the method shows excellent dielectric properties: the relative density is 88-96%, and the dielectric constant is 5.5 lt; epsilon rlt; 6.3, the quality factor (Qf) value is 18000 GHzlt; qflt; and the frequency is 60600 GHz. Compared with a traditional high-temperature ceramic sintering method, the density and the microwave dielectric property of the obtained high-temperature ceramic sintering method are remarkably improved, and the high-temperature ceramic sintering method can be widely applied to electronic components such as antenna substrates and resonators in the field of 5G high-frequency-band communication.
本发明公开了一种低温热压制备的高性能低介微波介质陶瓷及其方法。本发明方法包括：称取NaOH与NaCl粉体，将两者均匀地溶解于蒸馏水中，后将液体烘干，得到NaOH‑NaCl混合物粉体；称取CaF2粉末，在CaF2粉末中添加所得的NaOH‑NaCl混合物粉体，充分研磨使两者混合均匀；将所得的混合粉末置于模具中，放入热压机中进行热压烧结，热压结束后获得致密的CaF2陶瓷；将获得的CaF2陶瓷烘干至恒重。本发明方法所得的微波陶瓷表现出优异的介电性能：相对密度为88％～96％，介电常数5.5<εr<6.3，品质因数Qf值18000GHz
High-performance low-dielectric microwave dielectric ceramic prepared by low-temperature hot pressing and preparation method thereof
The invention discloses a high-performance low-dielectric microwave dielectric ceramic prepared by low-temperature hot pressing and a preparation method thereof. The method comprises the following steps: weighing NaOH powder and NaCl powder, uniformly dissolving the NaOH powder and the NaCl powder in distilled water, and drying the liquid to obtain NaOH-NaCl mixture powder; caF2 powder is weighed, the obtained NaOH-NaCl mixture powder is added into the CaF2 powder, and the CaF2 powder and the NaOH-NaCl mixture powder are fully ground to be evenly mixed; putting the obtained mixed powder into a mold, putting the mold into a hot press for hot pressing sintering, and obtaining compact CaF2 ceramic after hot pressing is finished; and drying the obtained CaF2 ceramic to constant weight. The microwave ceramic obtained by the method shows excellent dielectric properties: the relative density is 88-96%, and the dielectric constant is 5.5 lt; epsilon rlt; 6.3, the quality factor (Qf) value is 18000 GHzlt; qflt; and the frequency is 60600 GHz. Compared with a traditional high-temperature ceramic sintering method, the density and the microwave dielectric property of the obtained high-temperature ceramic sintering method are remarkably improved, and the high-temperature ceramic sintering method can be widely applied to electronic components such as antenna substrates and resonators in the field of 5G high-frequency-band communication.
本发明公开了一种低温热压制备的高性能低介微波介质陶瓷及其方法。本发明方法包括：称取NaOH与NaCl粉体，将两者均匀地溶解于蒸馏水中，后将液体烘干，得到NaOH‑NaCl混合物粉体；称取CaF2粉末，在CaF2粉末中添加所得的NaOH‑NaCl混合物粉体，充分研磨使两者混合均匀；将所得的混合粉末置于模具中，放入热压机中进行热压烧结，热压结束后获得致密的CaF2陶瓷；将获得的CaF2陶瓷烘干至恒重。本发明方法所得的微波陶瓷表现出优异的介电性能：相对密度为88％～96％，介电常数5.5<εr<6.3，品质因数Qf值18000GHz
High-performance low-dielectric microwave dielectric ceramic prepared by low-temperature hot pressing and preparation method thereof
一种低温热压制备的高性能低介微波介质陶瓷及其方法
LIU BING (author) / LIU JUAN (author) / HUANG YUHUI (author)
2022-03-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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