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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing donor-acceptor composite doped barium titanate-based ceramic by using semi-solution-solid phase sintering method
The invention discloses a method for preparing donor-acceptor composite doped barium titanate-based ceramic by using a semi-solution-solid phase sintering method, and relates to the field of materialpreparation, and the method comprises the following steps: weighing La (NO3) 3 and Mn (NO3) 2 powder, adding the La (NO3) 3 and Mn (NO3) 2 powder into deionized water, and fully dissolving to obtain asolution; weighing BaCO3 powder and TiO2 powder, adding the BaCO3 powder and TiO2 powder into the solution, mixing in a medium and then carrying out ball milling to obtain a first slurry; drying andsieving the first slurry, and sintering an obtained mixed powder to obtain synthesized first powder; sieving the first powder, and carrying out ball milling to obtain second slurry; drying and sievingthe second slurry, adding PVA glue to obtain second powder with the particle size of 60-100 meshes, and pressing the second powder into a rough blank by using a tablet press; and sintering the roughblank to obtain a barium titanate-based ceramic sample. According to the preparation method, the maximum polarization intensity is improved, the dielectric constant peak value is increased, and meanwhile the method is suitable for large-scale production.
本发明公开了一种使用半溶液‑固相烧结法制备施主‑受主复合掺杂的钛酸钡基陶瓷的方法，涉及材料制备领域，包括：称量La(NO3)3和Mn(NO3)2粉末并加入去离子水中充分溶解获得溶液；称量BaCO3、TiO2粉末加入所述溶液中在介质中混合后球磨得到第一浆料；将所述第一浆料烘干后过筛，将得到的混合粉末烧结得到合成第一粉料；将所第一述粉料过筛后球磨后得到第二浆料；将所述第二浆料烘干过筛后加入PVA胶获得粒径在60‑100目之间的第二粉料，并使用压片机将所述第二粉料压成粗坯；将所述粗坯烧结得到钛酸钡基陶瓷样品。本发明的制备方法，使得在提高最大极化强度，提高介电常数峰值同时适用于大规模生产。
Method for preparing donor-acceptor composite doped barium titanate-based ceramic by using semi-solution-solid phase sintering method
The invention discloses a method for preparing donor-acceptor composite doped barium titanate-based ceramic by using a semi-solution-solid phase sintering method, and relates to the field of materialpreparation, and the method comprises the following steps: weighing La (NO3) 3 and Mn (NO3) 2 powder, adding the La (NO3) 3 and Mn (NO3) 2 powder into deionized water, and fully dissolving to obtain asolution; weighing BaCO3 powder and TiO2 powder, adding the BaCO3 powder and TiO2 powder into the solution, mixing in a medium and then carrying out ball milling to obtain a first slurry; drying andsieving the first slurry, and sintering an obtained mixed powder to obtain synthesized first powder; sieving the first powder, and carrying out ball milling to obtain second slurry; drying and sievingthe second slurry, adding PVA glue to obtain second powder with the particle size of 60-100 meshes, and pressing the second powder into a rough blank by using a tablet press; and sintering the roughblank to obtain a barium titanate-based ceramic sample. According to the preparation method, the maximum polarization intensity is improved, the dielectric constant peak value is increased, and meanwhile the method is suitable for large-scale production.
本发明公开了一种使用半溶液‑固相烧结法制备施主‑受主复合掺杂的钛酸钡基陶瓷的方法，涉及材料制备领域，包括：称量La(NO3)3和Mn(NO3)2粉末并加入去离子水中充分溶解获得溶液；称量BaCO3、TiO2粉末加入所述溶液中在介质中混合后球磨得到第一浆料；将所述第一浆料烘干后过筛，将得到的混合粉末烧结得到合成第一粉料；将所第一述粉料过筛后球磨后得到第二浆料；将所述第二浆料烘干过筛后加入PVA胶获得粒径在60‑100目之间的第二粉料，并使用压片机将所述第二粉料压成粗坯；将所述粗坯烧结得到钛酸钡基陶瓷样品。本发明的制备方法，使得在提高最大极化强度，提高介电常数峰值同时适用于大规模生产。
Method for preparing donor-acceptor composite doped barium titanate-based ceramic by using semi-solution-solid phase sintering method
一种使用半溶液-固相烧结法制备施主-受主复合掺杂的钛酸钡基陶瓷的方法
LIU WENFENG (Autor:in) / GAO JINGHAN (Autor:in) / CHENG LU (Autor:in) / ZHAO YI (Autor:in) / LI SHENGTAO (Autor:in)
16.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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