A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Infrared low-emissivity material and preparation method thereof
The invention provides an infrared low-emissivity material and a preparation method thereof.The preparation method comprises the steps that 1, barium carbonate, strontium carbonate, aluminum oxide and silicon dioxide are mixed and then sintered, and BaxSr1-xAl2Si2O8 ceramic powder is obtained; and (2) carrying out ball milling on the BaxSr < 1-x > Al < 2 > Si < 2 > O < 8 > ceramic powder, so as to obtain the infrared low-emissivity material. According to the scheme, the high-temperature-resistant BaxSr1-xAl2Si2O8 ceramic powder is prepared firstly, and barium carbonate and strontium carbonate are doped to prepare the BaxSr1-xAl2Si2O8 ceramic powder, so that the mobility of carriers in the ceramic powder can be increased, and the conductivity of the material is increased; in addition, ball milling treatment is carried out on the BaxSr1-xAl2Si2O8 ceramic powder, on one hand, the morphology and size of the powder can be controlled, and on the other hand, molecules and atoms in the ceramic powder can vibrate and rotate in the ball milling treatment process, so that the wave absorption of the powder in the infrared band is enhanced; therefore, under the synergistic effect of conductivity and crystal vibration, the infrared emissivity of the material in a high-temperature environment can be remarkably reduced.
本发明提供了一种红外低发射率材料及其制备方法，该制备方法包括：(1)将碳酸钡、碳酸锶、氧化铝和二氧化硅混合后进行烧结，得到BaxSr1‑xAl2Si2O8陶瓷粉体；(2)将所述BaxSr1‑xAl2Si2O8陶瓷粉体进行球磨，得到所述红外低发射率材料。本方案，首先通过制备耐高温性的BaxSr1‑xAl2Si2O8陶瓷粉体，并通过在将碳酸钡和碳酸锶进行掺杂制备BaxSr1‑xAl2Si2O8陶瓷粉体，能够增加载流子在陶瓷粉体中的迁移率，使得材料的导电性增加；再加之对BaxSr1‑xAl2Si2O8陶瓷粉体的球磨化处理，一方面能够控制粉体的形貌和尺寸，另一方面球磨化处理过程中会使得陶瓷粉体中分子和原子发生振动和转动，从而增强粉体在红外波段的吸波；如此，在导电性和晶体振动的协同作用下，从而能够显著降低材料在高温环境下的红外发射率。
Infrared low-emissivity material and preparation method thereof
The invention provides an infrared low-emissivity material and a preparation method thereof.The preparation method comprises the steps that 1, barium carbonate, strontium carbonate, aluminum oxide and silicon dioxide are mixed and then sintered, and BaxSr1-xAl2Si2O8 ceramic powder is obtained; and (2) carrying out ball milling on the BaxSr < 1-x > Al < 2 > Si < 2 > O < 8 > ceramic powder, so as to obtain the infrared low-emissivity material. According to the scheme, the high-temperature-resistant BaxSr1-xAl2Si2O8 ceramic powder is prepared firstly, and barium carbonate and strontium carbonate are doped to prepare the BaxSr1-xAl2Si2O8 ceramic powder, so that the mobility of carriers in the ceramic powder can be increased, and the conductivity of the material is increased; in addition, ball milling treatment is carried out on the BaxSr1-xAl2Si2O8 ceramic powder, on one hand, the morphology and size of the powder can be controlled, and on the other hand, molecules and atoms in the ceramic powder can vibrate and rotate in the ball milling treatment process, so that the wave absorption of the powder in the infrared band is enhanced; therefore, under the synergistic effect of conductivity and crystal vibration, the infrared emissivity of the material in a high-temperature environment can be remarkably reduced.
本发明提供了一种红外低发射率材料及其制备方法，该制备方法包括：(1)将碳酸钡、碳酸锶、氧化铝和二氧化硅混合后进行烧结，得到BaxSr1‑xAl2Si2O8陶瓷粉体；(2)将所述BaxSr1‑xAl2Si2O8陶瓷粉体进行球磨，得到所述红外低发射率材料。本方案，首先通过制备耐高温性的BaxSr1‑xAl2Si2O8陶瓷粉体，并通过在将碳酸钡和碳酸锶进行掺杂制备BaxSr1‑xAl2Si2O8陶瓷粉体，能够增加载流子在陶瓷粉体中的迁移率，使得材料的导电性增加；再加之对BaxSr1‑xAl2Si2O8陶瓷粉体的球磨化处理，一方面能够控制粉体的形貌和尺寸，另一方面球磨化处理过程中会使得陶瓷粉体中分子和原子发生振动和转动，从而增强粉体在红外波段的吸波；如此，在导电性和晶体振动的协同作用下，从而能够显著降低材料在高温环境下的红外发射率。
Infrared low-emissivity material and preparation method thereof
一种红外低发射率材料及其制备方法
LI JINJIN (author) / HE JUNZHE (author) / SUN XIN (author) / WENG CHUANXIN (author) / WU WEI (author) / TIAN JIANGXIAO (author)
2024-03-01
Patent
Electronic Resource
Chinese
High-emissivity infrared energy-saving material preparation method
| European Patent Office | 2015
Wide-temperature-range high-infrared-emissivity coating material and preparation method thereof
| European Patent Office | 2015
High-emissivity infrared energy-saving composite ceramic material and preparation method thereof
| European Patent Office | 2015
| European Patent Office | 2024
High-emissivity infrared energy-saving material and applications thereof
| European Patent Office | 2015