Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-temperature sintered zinc oxide pressure-sensitive ceramic and preparation method thereof
The invention discloses low-temperature sintered zinc oxide pressure-sensitive ceramic and a preparation method thereof. The method comprises steps: mixing, ball milling, and drying zinc oxide, a sintering aid B4C and a modification additive to obtain a powder, wherein the modification additive contains Bi2O3, Sb2O3, Co3O4, an oxide of manganese and Ni2O3; adding PVA glue into the obtained powder,granulating, sieving, tabletting and discharging glue; sintering for 2 to 3h at 900 to 950 DEG C to obtain a black and compact pressure-sensitive ceramic chip; and respectively coating the two surfaces of the pressure-sensitive ceramic chip with silver paste, heating to 500-550 DEG C, carrying out heat preservation for 20-30 minutes, and cooling to obtain the pressure-sensitive ceramic with electrodes printed on the two surfaces. According to the preparation method, B4C is adopted as a sintering aid, the sintering temperature is reduced to 950 DEG C or below from traditional 1100-1200 DEG C,meanwhile, it is guaranteed that the pressure-sensitive ceramic has good comprehensive electrical properties, and the whole process is energy-saving, consumption-reducing, environmentally friendly, simple, convenient and easy to implement and capable of being industrially popularized.
本发明公开了一种低温烧结氧化锌压敏陶瓷及其制备方法，将氧化锌、烧结助剂BC和改性添加剂混合并球磨，干燥后得粉料；改性添加剂含有BiO、SbO、CoO、锰的氧化物和NiO；得到的粉料加PVA胶，造粒过筛，压片排胶；于900‑950℃烧结2‑3h，获得黑色致密的压敏陶瓷片；再将压敏陶瓷片的两面分别涂覆银浆，升温至500℃‑550℃，保温20‑30分钟后冷却，得到两面均印有电极的压敏陶瓷。本发明通过采用BC作为烧结助剂，将烧结温度从传统的1100‑1200℃降至950℃以下的同时也保证了压敏陶瓷具备良好的综合电性能，整体工艺节能降耗，绿色环保，简便易行且可工业化推广。
Low-temperature sintered zinc oxide pressure-sensitive ceramic and preparation method thereof
The invention discloses low-temperature sintered zinc oxide pressure-sensitive ceramic and a preparation method thereof. The method comprises steps: mixing, ball milling, and drying zinc oxide, a sintering aid B4C and a modification additive to obtain a powder, wherein the modification additive contains Bi2O3, Sb2O3, Co3O4, an oxide of manganese and Ni2O3; adding PVA glue into the obtained powder,granulating, sieving, tabletting and discharging glue; sintering for 2 to 3h at 900 to 950 DEG C to obtain a black and compact pressure-sensitive ceramic chip; and respectively coating the two surfaces of the pressure-sensitive ceramic chip with silver paste, heating to 500-550 DEG C, carrying out heat preservation for 20-30 minutes, and cooling to obtain the pressure-sensitive ceramic with electrodes printed on the two surfaces. According to the preparation method, B4C is adopted as a sintering aid, the sintering temperature is reduced to 950 DEG C or below from traditional 1100-1200 DEG C,meanwhile, it is guaranteed that the pressure-sensitive ceramic has good comprehensive electrical properties, and the whole process is energy-saving, consumption-reducing, environmentally friendly, simple, convenient and easy to implement and capable of being industrially popularized.
本发明公开了一种低温烧结氧化锌压敏陶瓷及其制备方法，将氧化锌、烧结助剂BC和改性添加剂混合并球磨，干燥后得粉料；改性添加剂含有BiO、SbO、CoO、锰的氧化物和NiO；得到的粉料加PVA胶，造粒过筛，压片排胶；于900‑950℃烧结2‑3h，获得黑色致密的压敏陶瓷片；再将压敏陶瓷片的两面分别涂覆银浆，升温至500℃‑550℃，保温20‑30分钟后冷却，得到两面均印有电极的压敏陶瓷。本发明通过采用BC作为烧结助剂，将烧结温度从传统的1100‑1200℃降至950℃以下的同时也保证了压敏陶瓷具备良好的综合电性能，整体工艺节能降耗，绿色环保，简便易行且可工业化推广。
Low-temperature sintered zinc oxide pressure-sensitive ceramic and preparation method thereof
一种低温烧结氧化锌压敏陶瓷及其制备方法
LU ZHENYA (Autor:in) / XIAO MIAOMIAO (Autor:in) / YANG FENGJIN (Autor:in)
11.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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