Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for rapidly synthesizing high-entropy carbonitride ceramic powder by adopting microwaves
The invention belongs to the technical field of high-entropy ceramics, and relates to a method for rapidly synthesizing high-entropy carbonitride ceramic powder by adopting microwaves. The molar ratio of the precursor powder TiO2, WO3, MoO3, V2O5, Nb2O5 and carbon black is 2: 2: 2: 1: 1: 31. The preparation process comprises the following steps: putting prepared precursor powder into a polyurethane ball milling tank for ball milling; putting the ball-milled material into a vacuum drying oven for drying, and then sieving and packaging for later use; the powder is put into a small-size graphite crucible of a heat preservation device for microwave heat treatment, and then the heat preservation device is put into a microwave sintering furnace; and heating to 1650-1750 DEG C in a flowing nitrogen atmosphere, keeping the temperature, and cooling to room temperature along with the furnace. By adopting a special microwave heating mode, uniform heating, rapid temperature rise, reaction time shortening and crystal grain growth inhibition can be realized, the high-entropy carbonitride ceramic powder with small particle size and uniform component distribution can be rapidly synthesized by using low-cost raw materials, the production efficiency is improved, and the energy loss is effectively reduced.
本发明属于高熵陶瓷技术领域，涉及一种采用微波快速合成高熵碳氮化物陶瓷粉体的方法。其前驱体粉末TiO2、WO3、MoO3、V2O5、Nb2O5和炭黑的摩尔比为2:2:2:1:1:31。制备工艺为：将配置好的前驱体粉末装入聚氨酯球磨罐中进行球磨；将球磨后的物料放入真空干燥箱中进行干燥，然后过筛封装待用；将粉末装入微波热处理用保温装置的小尺寸石墨坩埚中，然后将保温装置放入微波烧结炉内；在流动的氮气气氛下，升温至1650℃～1750℃，保温后随炉冷却至室温。本发明采用微波的特殊加热方式可以实现均匀加热、快速升温、缩短反应时间并抑制晶粒长大，用低廉的原料快速合成粒径细小、成分分布均匀的高熵碳氮化物陶瓷粉体，提高生产效率并有效减少能量损耗。
Method for rapidly synthesizing high-entropy carbonitride ceramic powder by adopting microwaves
The invention belongs to the technical field of high-entropy ceramics, and relates to a method for rapidly synthesizing high-entropy carbonitride ceramic powder by adopting microwaves. The molar ratio of the precursor powder TiO2, WO3, MoO3, V2O5, Nb2O5 and carbon black is 2: 2: 2: 1: 1: 31. The preparation process comprises the following steps: putting prepared precursor powder into a polyurethane ball milling tank for ball milling; putting the ball-milled material into a vacuum drying oven for drying, and then sieving and packaging for later use; the powder is put into a small-size graphite crucible of a heat preservation device for microwave heat treatment, and then the heat preservation device is put into a microwave sintering furnace; and heating to 1650-1750 DEG C in a flowing nitrogen atmosphere, keeping the temperature, and cooling to room temperature along with the furnace. By adopting a special microwave heating mode, uniform heating, rapid temperature rise, reaction time shortening and crystal grain growth inhibition can be realized, the high-entropy carbonitride ceramic powder with small particle size and uniform component distribution can be rapidly synthesized by using low-cost raw materials, the production efficiency is improved, and the energy loss is effectively reduced.
本发明属于高熵陶瓷技术领域，涉及一种采用微波快速合成高熵碳氮化物陶瓷粉体的方法。其前驱体粉末TiO2、WO3、MoO3、V2O5、Nb2O5和炭黑的摩尔比为2:2:2:1:1:31。制备工艺为：将配置好的前驱体粉末装入聚氨酯球磨罐中进行球磨；将球磨后的物料放入真空干燥箱中进行干燥，然后过筛封装待用；将粉末装入微波热处理用保温装置的小尺寸石墨坩埚中，然后将保温装置放入微波烧结炉内；在流动的氮气气氛下，升温至1650℃～1750℃，保温后随炉冷却至室温。本发明采用微波的特殊加热方式可以实现均匀加热、快速升温、缩短反应时间并抑制晶粒长大，用低廉的原料快速合成粒径细小、成分分布均匀的高熵碳氮化物陶瓷粉体，提高生产效率并有效减少能量损耗。
Method for rapidly synthesizing high-entropy carbonitride ceramic powder by adopting microwaves
一种采用微波快速合成高熵碳氮化物陶瓷粉体的方法
LIU HANLIAN (Autor:in) / LIU QIAN (Autor:in) / HUANG CHUANZHEN (Autor:in) / WANG LIMEI (Autor:in) / WANG SHUYOU (Autor:in) / SUN ZHIKANG (Autor:in) / HAN QUANQUAN (Autor:in)
24.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
High-entropy carbonitride ceramic powder as well as preparation method and application thereof
| Europäisches Patentamt | 2021
Aluminum-containing high-entropy carbonitride ceramic and preparation method thereof
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
TITANIUM CARBONITRIDE POWDER AND METHOD FOR PRODUCING TITANIUM CARBONITRIDE POWDER
| Europäisches Patentamt | 2020