NettetA new structure of lanthanum hexaboride (LaB 6 ) hollow cathode insert, which has a cylindrical core, is studied in this paper. The cylindrical core is inserted into and connected at the back of the traditional hollow cylinder part. Two inserts with core and one traditional insert are tested. The new structure can largely reduce the cathode temperature, the … Nettet25. sep. 2024 · Hollow cathode arc (HCA) discharges have been used in extensive applications [1–8], ranging from vacuum microelec- tronic devices, lasers, and materials processing to spacecraft propulsion, due to the outstanding current-delivering capacity and structural simplicity of HCA devices.
Plasma Free Full-Text Characteristics of a Source for Oxide …
Nettet1. sep. 2024 · Gas discharges between a cathode with a hollow structure and an arbitrarily formed anode are known as hollow cathode discharges (HCDs) . Because … Nettet20. sep. 2024 · The discharge pictures at the outlet of the micro-hollow cathode were taken through CCD and the voltage oscillation was analyzed [ 21 ]. This kind of cathode is glow discharge. The cathode discharge voltage is very high, ranging from hundreds of volts to thousands of volts, and the current is very low. does family dollar sell christmas trees
Paschen’s law for a hollow cathode discharge: Applied Physics …
Nettet1. jan. 2024 · Photoactive semiconducting crystalline films of non-stoichiometric tungsten oxides (WO 3-x, 0 ≤ x ≤ 3) were deposited by DC hollow cathode discharge from a tungsten nozzle in a reactive Ar + O 2 atmosphere. The ratio of tungsten to oxygen in the layer was driven by controlling the O 2 flow. All layers were prepared on soda-lime … Nettet7. apr. 2024 · If the nitriding treatment adopts hollow cathode discharge, the ionization rate and plasma density generated will be greater than the linear abnormal glow discharge [36,37]. Our previous work concluded that the HCPSN nitrided sample had a higher corrosion resistance in comparison with the bare AISI 4140 steel and the CPN samples . NettetIf a single plane cathode in a glow discharge is replaced by a cathode with some hollow structure such as a cylindrical or slit shaped hole, then, in a specific range of operating conditions the negative glow is found to be inside the hollow structure of the cathode. f1 teams 2018 vs 2019