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A platform for research: civil engineering, architecture and urbanism
Low-temperature fired ceramic green body and preparation method thereof
The invention relates to a low-temperature fired ceramic green body and a preparation method thereof, and belongs to the technical field of ceramic materials. The ceramic green body provided by the invention is prepared by using a composite phase of Sr2CeO4 and Sr2Ti O4, then adding mixed powder of a glass phase prepared from L < i > 2CO3, B2O3, S < i > O2, A < l > 2O3, K2O and Na2O, and sintering together. The prepared ceramic body is uniform and compact in grain growth, the number of pores is reduced, and meanwhile, the glass-phase mixed powder has lower melting temperature, so that the sintering temperature of the ceramic body is obviously reduced. Due to the existence of the L < i > 2CO3, the Sr2CeO4 can keep good performance and is prevented from being decomposed; in the presence of K2O and Na2O, the glass phase viscosity is reduced, the liquid phase sintering is promoted, the structure becomes compact, the structural loss is greatly reduced, and the dielectric loss is reduced.
本发明涉及一种低温烧成陶瓷坯体及其制备方法，属于陶瓷材料技术领域。本发明提供的陶瓷坯体使用Sr2CeO4和Sr2T i O4复合相，再加入L i 2CO3、B2O3、S i O2、A l 2O3、K2O、Na2O制得的玻璃相的混合粉末共同烧结制得。所制得的陶瓷胚体晶粒生长均匀致密，气孔数量减少，同时玻璃相的混合粉末有着较低的熔化温度，使得陶瓷胚体的烧结温度显著降低。L i 2CO3的存在可以使得Sr2CeO4保持良好的性能防止被分解；K2O、Na2O的存在降低玻璃相粘度、促进了液相烧结，使其结构变得致密，结构损耗大大减少，导致其介电损耗降低。
Low-temperature fired ceramic green body and preparation method thereof
The invention relates to a low-temperature fired ceramic green body and a preparation method thereof, and belongs to the technical field of ceramic materials. The ceramic green body provided by the invention is prepared by using a composite phase of Sr2CeO4 and Sr2Ti O4, then adding mixed powder of a glass phase prepared from L < i > 2CO3, B2O3, S < i > O2, A < l > 2O3, K2O and Na2O, and sintering together. The prepared ceramic body is uniform and compact in grain growth, the number of pores is reduced, and meanwhile, the glass-phase mixed powder has lower melting temperature, so that the sintering temperature of the ceramic body is obviously reduced. Due to the existence of the L < i > 2CO3, the Sr2CeO4 can keep good performance and is prevented from being decomposed; in the presence of K2O and Na2O, the glass phase viscosity is reduced, the liquid phase sintering is promoted, the structure becomes compact, the structural loss is greatly reduced, and the dielectric loss is reduced.
本发明涉及一种低温烧成陶瓷坯体及其制备方法，属于陶瓷材料技术领域。本发明提供的陶瓷坯体使用Sr2CeO4和Sr2T i O4复合相，再加入L i 2CO3、B2O3、S i O2、A l 2O3、K2O、Na2O制得的玻璃相的混合粉末共同烧结制得。所制得的陶瓷胚体晶粒生长均匀致密，气孔数量减少，同时玻璃相的混合粉末有着较低的熔化温度，使得陶瓷胚体的烧结温度显著降低。L i 2CO3的存在可以使得Sr2CeO4保持良好的性能防止被分解；K2O、Na2O的存在降低玻璃相粘度、促进了液相烧结，使其结构变得致密，结构损耗大大减少，导致其介电损耗降低。
Low-temperature fired ceramic green body and preparation method thereof
一种低温烧成陶瓷坯体及其制备方法
DENG ZHANGSHENG (author) / QUAN JIAXIN (author) / PAN ZHENMING (author) / YU CHUANBING (author)
2023-11-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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