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Composite modification method for strength of rare earth nickel-based oxide electronic phase change material
The invention relates to a composite modification method for the strength of a rare earth nickel-based oxide electronic phase change material, and belongs to the fields of metal functional semiconductor oxides, sensitive resistance materials and devices, electronic ceramics and the like. By introducing a composite phase technology which can be sintered with the rare earth nickel-based oxide in a coherent manner, the structure change of the rare earth nickel-based oxide caused by electronic phase change in the process of triggering the phase change of a metal insulator in a periodic thermal field is inhibited, meanwhile, the crystal boundary and crystal grain states are improved, and the metastable state phase of the rare earth nickel-based oxide is stabilized; therefore, the mechanical property and the electrical stability of the rare earth nickel-based oxide ceramic material are improved and enhanced. The rare earth nickel-based oxide composite ceramic material prepared by the technology can be further prepared into sensitive resistors such as thermosensitive resistors and pressure-sensitive resistors, and the mechanical properties such as fatigue resistance, thermal shock resistance and the like of electronic phase change functional characteristics of the devices are greatly improved.
本发明涉及一种稀土镍基氧化物电子相变材料强度的复合改性方法，属于金属功能半导体氧化物、敏感电阻材料与器件、电子陶瓷等领域。本发明通过引入与稀土镍基氧化物可共格烧结的复合相技术，抑制稀土镍基氧化物在周期性热场触发金属绝缘体相变过程中由电子相变所引起的结构变化，且与此同时改善晶界、晶粒状态并稳定稀土镍基氧化物亚稳态物相，从而实现对稀土镍基氧化物陶瓷材料的力学特性、电学稳定性的改善与增强。利用本技术所制备的稀土镍基氧化物复合陶瓷材料可进一步制备成热敏、压力敏感等敏感电阻器件，并实现大幅提高器件电子相变功能特性的抗疲劳、抗热冲击性等力学特性。
Composite modification method for strength of rare earth nickel-based oxide electronic phase change material
The invention relates to a composite modification method for the strength of a rare earth nickel-based oxide electronic phase change material, and belongs to the fields of metal functional semiconductor oxides, sensitive resistance materials and devices, electronic ceramics and the like. By introducing a composite phase technology which can be sintered with the rare earth nickel-based oxide in a coherent manner, the structure change of the rare earth nickel-based oxide caused by electronic phase change in the process of triggering the phase change of a metal insulator in a periodic thermal field is inhibited, meanwhile, the crystal boundary and crystal grain states are improved, and the metastable state phase of the rare earth nickel-based oxide is stabilized; therefore, the mechanical property and the electrical stability of the rare earth nickel-based oxide ceramic material are improved and enhanced. The rare earth nickel-based oxide composite ceramic material prepared by the technology can be further prepared into sensitive resistors such as thermosensitive resistors and pressure-sensitive resistors, and the mechanical properties such as fatigue resistance, thermal shock resistance and the like of electronic phase change functional characteristics of the devices are greatly improved.
本发明涉及一种稀土镍基氧化物电子相变材料强度的复合改性方法，属于金属功能半导体氧化物、敏感电阻材料与器件、电子陶瓷等领域。本发明通过引入与稀土镍基氧化物可共格烧结的复合相技术，抑制稀土镍基氧化物在周期性热场触发金属绝缘体相变过程中由电子相变所引起的结构变化，且与此同时改善晶界、晶粒状态并稳定稀土镍基氧化物亚稳态物相，从而实现对稀土镍基氧化物陶瓷材料的力学特性、电学稳定性的改善与增强。利用本技术所制备的稀土镍基氧化物复合陶瓷材料可进一步制备成热敏、压力敏感等敏感电阻器件，并实现大幅提高器件电子相变功能特性的抗疲劳、抗热冲击性等力学特性。
Composite modification method for strength of rare earth nickel-based oxide electronic phase change material
一种稀土镍基氧化物电子相变材料强度的复合改性方法
CHEN JIKUN (Autor:in) / LI ZI'ANG (Autor:in) / ZHANG XIULAN (Autor:in)
06.05.2022
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2021