A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for improving reduction resistance of PTCR thermal sensitive ceramic
The invention discloses a method for improving the reduction resistance of PTCR heating ceramics, wherein the method comprises the following steps: adding z mol% of Ta2O5 into BaTiO3, PbTiO3 and MnO2 as powder, wherein the value range of z is greater than 0 and less than or equal to 0.05; A semiconducting agent and a sintering aid are added, sintering is carried out in an air atmosphere, the sintered ceramic surface is ground, and an electrode is coated. By adding Ta, the voltage resistance strength and room temperature resistance change rate of a PTCR ceramic sheet before and after reduction are continuously reduced, and the reduction resistance of a prepared heater is obviously improved.
本发明公开了一种改善PTCR加热陶瓷耐还原性能的方法，包括以下步骤：在BaTiO3、PbTiO3、MnO2中添加zmol％的Ta2O5作为粉体，其中z的取值范围为0＜z≤0.05；通过添加半导化剂和烧结助剂，在大气气氛中烧结，对烧结后的陶瓷表面进行研磨，涂覆电极。本发明通过Ta的添加，使得PTCR陶瓷片在还原前后的耐电压强度和室温电阻变化率持续减少，制成的加热器的耐还原性能得到明显改善。
Method for improving reduction resistance of PTCR thermal sensitive ceramic
The invention discloses a method for improving the reduction resistance of PTCR heating ceramics, wherein the method comprises the following steps: adding z mol% of Ta2O5 into BaTiO3, PbTiO3 and MnO2 as powder, wherein the value range of z is greater than 0 and less than or equal to 0.05; A semiconducting agent and a sintering aid are added, sintering is carried out in an air atmosphere, the sintered ceramic surface is ground, and an electrode is coated. By adding Ta, the voltage resistance strength and room temperature resistance change rate of a PTCR ceramic sheet before and after reduction are continuously reduced, and the reduction resistance of a prepared heater is obviously improved.
本发明公开了一种改善PTCR加热陶瓷耐还原性能的方法，包括以下步骤：在BaTiO3、PbTiO3、MnO2中添加zmol％的Ta2O5作为粉体，其中z的取值范围为0＜z≤0.05；通过添加半导化剂和烧结助剂，在大气气氛中烧结，对烧结后的陶瓷表面进行研磨，涂覆电极。本发明通过Ta的添加，使得PTCR陶瓷片在还原前后的耐电压强度和室温电阻变化率持续减少，制成的加热器的耐还原性能得到明显改善。
Method for improving reduction resistance of PTCR thermal sensitive ceramic
一种改善PTCR热敏陶瓷耐还原性能的方法
ZHU XINGWEN (author) / ZHANG NAN (author) / JIA XIAOJING (author)
2022-02-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
PTCR thermal sensitive ceramic material and preparation method thereof
| European Patent Office | 2021
PTCR thermal sensitive ceramic material and preparation method thereof
| European Patent Office | 2021
| European Patent Office | 2015
Preparation of Bi-Based High Curie Temperature PTCR Ceramic
| British Library Online Contents | 2008
Secondary thermal treatment effect on PTCR BaTiO~3
| British Library Online Contents | 1999