The Synergistic Effect of the Laser Beam on the Thermionic Vacuum Arc Method for Titanium-Doped Chromium Thin Film Deposition

被引:3
|
作者
Vladoiu, Rodica [1 ]
Mandes, Aurelia [1 ]
Dinca, Virginia [1 ]
Ciupina, Victor [1 ]
Matei, Elena [2 ]
Polosan, Silviu [2 ]
机构
[1] Ovidius Univ Constanta, Fac Appl Sci & Engn, Dept Phys, Constanta 900527, Romania
[2] Natl Inst Mat Phys, POB MG-7, Bucharest 077125, Romania
关键词
Laser-Induced Thermionic Vacuum Arc; Ti-doped chromium; wettability; electrical resistance; dissociation energy; ELECTRICAL-RESISTIVITY; TIN;
D O I
10.3390/coatings12040470
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Laser-Induced Thermionic Vacuum Arc (LTVA) provides a better way to produce uniform metallic thin films than the classical Thermionic Vacuum Arc (TVA) method. In Ti-doped chromium thin films produced using LTVA, the amorphous chromium is superimposed with small bcc chromium nanoparticles. These amorphous/crystalline structures with small crystallites induce lower roughness and electrical resistivity, reducing electron-phonon scattering and increasing charge transport across LTVA thin films. A significant shift in resistivity for the LTVA samples is observed due to electron scattering on the phonon-crystalline structures in the TVA samples which exhibit larger crystallites. Meanwhile, the wettability measurements reveal a higher contact angle, resulting in a lower surface free energy and consecutively lower dissociation energy for the LTVA-produced thin films than the TVA samples.
引用
收藏
页数:12
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