Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
ZrO2-based conductive ceramic and preparation method thereof
The invention provides ZrO2-based conductive ceramic and a preparation method thereof. The preparation method comprises the steps that 1, adding Y2O3-stabilized ZrO2 powder, a conductive material, a sintering aid, a binder, a dispersing agent, a plasticizer and water into a ball milling tank to be subjected to ball milling to prepare a slurry; (2) performing spray granulation on the slurry to obtain powder A; (3) sieving the powder A to obtain powder B; (4) carrying out dry pressing molding on the powder B to obtain a molded green body; and (5) carrying out glue discharging and sintering on the molded green body in a reducing atmosphere at the sintering temperature of 1450-1650 DEG C to prepare the ZrO2-based conductive ceramic. According to the preparation method, ZrO2-based conductive ceramic is adopted; the preparation method is simple, the sintering temperature can be reduced, the sintering cost can be reduced, the energy consumption can be reduced, large-batch production can be carried out, the density of the prepared conductive ceramic can reach 98%, the three-point bending strength reaches 450-700 MPa, the Vickers hardness is 1000-1300 HV, the resistance is 1 ohm or below, and the performance requirements can be met.
本发明提供一种ZrO2基导电陶瓷及其制备方法，步骤包括(1)将Y2O3稳定ZrO2粉、导电材料、烧结助剂、粘结剂、分散剂、增塑剂和水加入球磨罐球磨，制得浆料；(2)将浆料进行喷雾造粒，得到粉料A；(3)对粉料A过筛得到粉料B；(4)对粉料B干压成型得到成型坯体；(5)对成型坯体在还原气氛下进行排胶、烧结，烧结温度为1450℃～1650℃，制得ZrO2基导电陶瓷。该制备方法采用ZrO2基的导电陶瓷，能降低烧结温度、降低烧结成本，减少能耗、可进行大批量生产，且制备的导电陶瓷的致密度可达98％，3点弯曲强度达450‑700MPa，维氏硬度为1000‑1300HV，电阻在1Ω以下，能够满足性能要求。
ZrO2-based conductive ceramic and preparation method thereof
The invention provides ZrO2-based conductive ceramic and a preparation method thereof. The preparation method comprises the steps that 1, adding Y2O3-stabilized ZrO2 powder, a conductive material, a sintering aid, a binder, a dispersing agent, a plasticizer and water into a ball milling tank to be subjected to ball milling to prepare a slurry; (2) performing spray granulation on the slurry to obtain powder A; (3) sieving the powder A to obtain powder B; (4) carrying out dry pressing molding on the powder B to obtain a molded green body; and (5) carrying out glue discharging and sintering on the molded green body in a reducing atmosphere at the sintering temperature of 1450-1650 DEG C to prepare the ZrO2-based conductive ceramic. According to the preparation method, ZrO2-based conductive ceramic is adopted; the preparation method is simple, the sintering temperature can be reduced, the sintering cost can be reduced, the energy consumption can be reduced, large-batch production can be carried out, the density of the prepared conductive ceramic can reach 98%, the three-point bending strength reaches 450-700 MPa, the Vickers hardness is 1000-1300 HV, the resistance is 1 ohm or below, and the performance requirements can be met.
本发明提供一种ZrO2基导电陶瓷及其制备方法，步骤包括(1)将Y2O3稳定ZrO2粉、导电材料、烧结助剂、粘结剂、分散剂、增塑剂和水加入球磨罐球磨，制得浆料；(2)将浆料进行喷雾造粒，得到粉料A；(3)对粉料A过筛得到粉料B；(4)对粉料B干压成型得到成型坯体；(5)对成型坯体在还原气氛下进行排胶、烧结，烧结温度为1450℃～1650℃，制得ZrO2基导电陶瓷。该制备方法采用ZrO2基的导电陶瓷，能降低烧结温度、降低烧结成本，减少能耗、可进行大批量生产，且制备的导电陶瓷的致密度可达98％，3点弯曲强度达450‑700MPa，维氏硬度为1000‑1300HV，电阻在1Ω以下，能够满足性能要求。
ZrO2-based conductive ceramic and preparation method thereof
一种ZrO2基导电陶瓷及其制备方法
JI WENYI (Autor:in) / LIU FENG (Autor:in) / LUO JIANZHOU (Autor:in) / ZHANG FU (Autor:in) / TANG LI (Autor:in)
20.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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