Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lead-free antiferroelectric ceramic with temperature stability and low transition field and preparation method of lead-free antiferroelectric ceramic
The invention discloses a lead-free antiferroelectric ceramic with temperature stability and a low transition field and a preparation method thereof, the stoichiometric formula of the lead-free antiferroelectric ceramic is Na < 1-x > Bi < 2x >/3Nb < 1-y > Zr < y > O < 3 >, x is more than 0 and less than or equal to 0.08, and y is more than 0 and less than or equal to 0.08; the preparation method comprises the following steps: weighing Na2CO3, Nb2O5, ZrO2 and Bi2O3 according to a stoichiometric equation to form a mixture, and carrying out ball milling and calcination on the mixture to form a full ingredient; carrying out ball milling, drying and sieving on the whole ingredient to form a sieved material; the sieved material is pressed into a cylindrical green body, the cylindrical green body is placed on a zirconium oxide flat plate, the zirconium oxide flat plate is placed in an aluminum oxide closed sagger, the prepared green body is sintered, and the low-transition-field lead-free antiferroelectric ceramic with temperature stability is obtained and is simple in preparation process, convenient to operate, low in material cost and environmentally friendly. The material is an important candidate material of a high-performance lead-free anti-ferroelectric ceramic material.
本发明公开了一种具有温度稳定性的低转变场的无铅反铁电陶瓷及其制备方法，其化学计量式为：Na1‑xBi2x/3Nb1‑yZryO3，0＜x≤0.08，0＜y≤0.08；其制备方法包括：按照化学计量式称量Na2CO3、Nb2O5、ZrO2和Bi2O3，形成混合料，将混合料经过球磨、煅烧形成全配料；将全配料进行再次球磨、烘干、过筛后形成过筛料；将过筛料压制成圆柱状生坯，将圆柱状生坯放在氧化锆平板上，将氧化锆平板置于氧化铝密闭匣钵中并将制好的生坯进行烧结，得到具有温度稳定性的低转变场的无铅反铁电陶瓷，且制备工艺简单，操作方便，材料成本低，环境友好，为高性能的无铅反铁电陶瓷材料的重要候选材料。
Lead-free antiferroelectric ceramic with temperature stability and low transition field and preparation method of lead-free antiferroelectric ceramic
The invention discloses a lead-free antiferroelectric ceramic with temperature stability and a low transition field and a preparation method thereof, the stoichiometric formula of the lead-free antiferroelectric ceramic is Na < 1-x > Bi < 2x >/3Nb < 1-y > Zr < y > O < 3 >, x is more than 0 and less than or equal to 0.08, and y is more than 0 and less than or equal to 0.08; the preparation method comprises the following steps: weighing Na2CO3, Nb2O5, ZrO2 and Bi2O3 according to a stoichiometric equation to form a mixture, and carrying out ball milling and calcination on the mixture to form a full ingredient; carrying out ball milling, drying and sieving on the whole ingredient to form a sieved material; the sieved material is pressed into a cylindrical green body, the cylindrical green body is placed on a zirconium oxide flat plate, the zirconium oxide flat plate is placed in an aluminum oxide closed sagger, the prepared green body is sintered, and the low-transition-field lead-free antiferroelectric ceramic with temperature stability is obtained and is simple in preparation process, convenient to operate, low in material cost and environmentally friendly. The material is an important candidate material of a high-performance lead-free anti-ferroelectric ceramic material.
本发明公开了一种具有温度稳定性的低转变场的无铅反铁电陶瓷及其制备方法，其化学计量式为：Na1‑xBi2x/3Nb1‑yZryO3，0＜x≤0.08，0＜y≤0.08；其制备方法包括：按照化学计量式称量Na2CO3、Nb2O5、ZrO2和Bi2O3，形成混合料，将混合料经过球磨、煅烧形成全配料；将全配料进行再次球磨、烘干、过筛后形成过筛料；将过筛料压制成圆柱状生坯，将圆柱状生坯放在氧化锆平板上，将氧化锆平板置于氧化铝密闭匣钵中并将制好的生坯进行烧结，得到具有温度稳定性的低转变场的无铅反铁电陶瓷，且制备工艺简单，操作方便，材料成本低，环境友好，为高性能的无铅反铁电陶瓷材料的重要候选材料。
Lead-free antiferroelectric ceramic with temperature stability and low transition field and preparation method of lead-free antiferroelectric ceramic
一种具有温度稳定性的低转变场的无铅反铁电陶瓷及制备方法
PU YONGPING (Autor:in) / YANG YILE (Autor:in) / CHEN MIN (Autor:in) / ZHANG LEI (Autor:in) / SHANG JING (Autor:in)
22.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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