A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Temperature-stable ultralow-loss microwave dielectric ceramic material, preparation method and application
The invention relates to a temperature-stable ultralow-loss microwave dielectric ceramic material, a preparation method and application, the microwave dielectric ceramic material is an aluminum-based compound solid solution with a layered perovskite structure, the chemical formula is Sr0. 6Ca0. 4LaAl1-x (Mg0. 5Ti0. 5) xO4, and x is greater than or equal to 0 and less than or equal to 0.5; the preparation method comprises the following steps: selecting SrCO3, CaCO3, La2O3, Al2O3, MgO and TiO2 as raw materials, drying the SrCO3, the CaCO3, the Al2O3, the MgO and the TiO2, calcining the La2O3, and proportioning according to the stoichiometric ratio of Sr0. 6Ca0. 4LaAl1-x (Mg0. 5Ti0. 5) xO4 (x is more than or equal to 0 and less than or equal to 0.5) to obtain treated raw materials; the treated raw materials are subjected to ball milling, drying and sieving, and a primary ball-milled material is obtained; calcining the primary ball-milled material, preserving heat, and cooling along with a furnace to obtain Sr0. 6Ca0. 4LaAl1-x (Mg0. 5Ti0. 5) xO4 pre-sintered powder; the Sr0. 6Ca0. 4LaAl1-x (Mg0. 5Ti0. 5) xO4 pre-sintered powder is subjected to secondary wet ball milling, drying and sieving, and a secondary ball milling material is obtained; performing cold isostatic pressing on the secondary ball-milled material to obtain a ceramic green body; sintering the ceramic green body, preserving heat, and cooling along with a furnace to obtain the Sr0. 6Ca0. 4LaAl1-x (Mg0. 5Ti0. 5) xO4 microwave dielectric ceramic, the cost of the required raw materials is low, the preparation process is simple, the ceramic performance is excellent and stable, and the obtained ceramic microwave dielectric property is more excellent.
一种温度稳定型超低损耗微波介质陶瓷材料、制备方法及应用，微波介质陶瓷材料为具有层状钙钛矿结构的铝基化合物固溶体，化学式为Sr0.6Ca0.4LaAl1‑x(Mg0.5Ti0.5)xO4，0≤x≤0.5；制备方法为：选用SrCO3、CaCO3、La2O3、Al2O3、MgO和TiO2为原料，将SrCO3、CaCO3、Al2O3、MgO和TiO2烘干，La2O3煅烧，按Sr0.6Ca0.4LaAl1‑x(Mg0.5Ti0.5)xO4(0≤x≤0.5)的化学计量比进行配料，得到处理后的原料；将处理后的原料球磨、烘干和过筛，得到一次球磨料；将一次球磨料煅烧、保温随炉冷却，得到Sr0.6Ca0.4LaAl1‑x(Mg0.5Ti0.5)xO4预烧粉体；将Sr0.6Ca0.4LaAl1‑x(Mg0.5Ti0.5)xO4预烧粉体二次湿法球磨、烘干和过筛，得到二次球磨料；将二次球磨料冷等静压成型，得到陶瓷生坯；将陶瓷生坯烧结、保温随炉冷却，得到Sr0.6Ca0.4LaAl1‑x(Mg0.5Ti0.5)xO4微波介质陶瓷；本发明所需原料成本低，制备工艺简单，陶瓷性能优异稳定，得到的陶瓷微波介电性能更加优异。
Temperature-stable ultralow-loss microwave dielectric ceramic material, preparation method and application
The invention relates to a temperature-stable ultralow-loss microwave dielectric ceramic material, a preparation method and application, the microwave dielectric ceramic material is an aluminum-based compound solid solution with a layered perovskite structure, the chemical formula is Sr0. 6Ca0. 4LaAl1-x (Mg0. 5Ti0. 5) xO4, and x is greater than or equal to 0 and less than or equal to 0.5; the preparation method comprises the following steps: selecting SrCO3, CaCO3, La2O3, Al2O3, MgO and TiO2 as raw materials, drying the SrCO3, the CaCO3, the Al2O3, the MgO and the TiO2, calcining the La2O3, and proportioning according to the stoichiometric ratio of Sr0. 6Ca0. 4LaAl1-x (Mg0. 5Ti0. 5) xO4 (x is more than or equal to 0 and less than or equal to 0.5) to obtain treated raw materials; the treated raw materials are subjected to ball milling, drying and sieving, and a primary ball-milled material is obtained; calcining the primary ball-milled material, preserving heat, and cooling along with a furnace to obtain Sr0. 6Ca0. 4LaAl1-x (Mg0. 5Ti0. 5) xO4 pre-sintered powder; the Sr0. 6Ca0. 4LaAl1-x (Mg0. 5Ti0. 5) xO4 pre-sintered powder is subjected to secondary wet ball milling, drying and sieving, and a secondary ball milling material is obtained; performing cold isostatic pressing on the secondary ball-milled material to obtain a ceramic green body; sintering the ceramic green body, preserving heat, and cooling along with a furnace to obtain the Sr0. 6Ca0. 4LaAl1-x (Mg0. 5Ti0. 5) xO4 microwave dielectric ceramic, the cost of the required raw materials is low, the preparation process is simple, the ceramic performance is excellent and stable, and the obtained ceramic microwave dielectric property is more excellent.
一种温度稳定型超低损耗微波介质陶瓷材料、制备方法及应用，微波介质陶瓷材料为具有层状钙钛矿结构的铝基化合物固溶体，化学式为Sr0.6Ca0.4LaAl1‑x(Mg0.5Ti0.5)xO4，0≤x≤0.5；制备方法为：选用SrCO3、CaCO3、La2O3、Al2O3、MgO和TiO2为原料，将SrCO3、CaCO3、Al2O3、MgO和TiO2烘干，La2O3煅烧，按Sr0.6Ca0.4LaAl1‑x(Mg0.5Ti0.5)xO4(0≤x≤0.5)的化学计量比进行配料，得到处理后的原料；将处理后的原料球磨、烘干和过筛，得到一次球磨料；将一次球磨料煅烧、保温随炉冷却，得到Sr0.6Ca0.4LaAl1‑x(Mg0.5Ti0.5)xO4预烧粉体；将Sr0.6Ca0.4LaAl1‑x(Mg0.5Ti0.5)xO4预烧粉体二次湿法球磨、烘干和过筛，得到二次球磨料；将二次球磨料冷等静压成型，得到陶瓷生坯；将陶瓷生坯烧结、保温随炉冷却，得到Sr0.6Ca0.4LaAl1‑x(Mg0.5Ti0.5)xO4微波介质陶瓷；本发明所需原料成本低，制备工艺简单，陶瓷性能优异稳定，得到的陶瓷微波介电性能更加优异。
Temperature-stable ultralow-loss microwave dielectric ceramic material, preparation method and application
一种温度稳定型超低损耗微波介质陶瓷材料、制备方法及应用
WANG ZHUO (author) / KANG JINTENG (author) / XUE YING (author) / YE RONGHUI (author) / ZHAO TING (author) / LIU ZHUANG (author) / NING ZEYU (author) / WANG JIAOJIAO (author)
2023-10-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Low-loss stable-temperature ultralow-dielectric-constant microwave dielectric ceramic NdY2V3O12
| European Patent Office | 2015
Low-loss stable-temperature ultralow-dielectric constant microwave dielectric ceramic GdY2V3O12
| European Patent Office | 2015
Low-loss temperature-stable ultralow dielectric constant microwave dielectric ceramic CeY2V3O12
| European Patent Office | 2015
Stable-temperature ultralow-dielectric-constant microwave dielectric ceramic SrLi3Eu3Mo2O13
| European Patent Office | 2015
Ultralow-dielectric-constant temperature-stable microwave dielectric ceramic Li2CaSiO4
| European Patent Office | 2015