Views: 2 Author: Site Editor Publish Time: 2021-12-15 Origin: Site
It is well known that lanthanum boride is a thermionic material with the ability to emit electrons. It can be used as either a direct high temperature solar absorber or as an electron source, and in the future could reduce the system complexity of concentrating solar thermoelectronic systems and bring real innovation in this field. Lanthanum boride sputtering targets have been used for coating electronic components.
Lanthanum boride, also known as lanthanum hexaboride, is a compound of rare earth metal element La and nonmetal element B. The crystal structure is a simple cube, and the B atoms surround the lanthanum atoms to form an octahedral structure. Due to its crystal structure, lanthanum hexaboride ceramic films made of lanthanum boride sputtering targets have good electrical conductivity.
Lanthanum boride sputtering target has high melting point, high strength and high hardness. The free electrons in LaB6 structure also give it good electrical and thermal conductivity like metals. LaB6 sputtering targets have high chemical stability and react only with aqua regia and nitric acid at room temperature, with low oxidation between 600 ℃ and 900 ℃.
Thermal electron emission (cathode), plasma enhanced coating (PECVD) plasma source, vacuum electron beam welding machine, electron beam surface modification device, electron beam lithography device, transmission electron microscope, scanning electron microscope, surface analysis device, radiotherapy equipment.