Microparticles of High Entropy Alloys Made by Laser-Induced Forward Transfer

被引：1

作者：

Han, Molong ^{[1
,2
]}

Meghwal, Ashok ^{[3
]}

Ng, Soon Hock ^{[1
,2
]}

Smith, Daniel ^{[1
,2
]}

Mu, Haoran ^{[1
,2
]}

Katkus, Tomas ^{[1
,2
]}

Zhu, De Ming ^{[4
]}

Mukhlis, Reiza ^{[4
]}

Vongsvivut, Jitraporn ^{[5
]}

Berndt, Christopher C. ^{[3
]}

Ang, Andrew S. M. ^{[3
]}

Juodkazis, Saulius ^{[1
,2
,6
]}

机构：

[1] Swinburne Univ Technol, Opt Sci Ctr, Sch Sci, Hawthorn, Vic 3122, Australia

[2] Swinburne Univ Technol, ARC Training Ctr Surface Engn Adv Mat SEAM, Sch Sci, Hawthorn, Vic 3122, Australia

[3] Swinburne Univ Technol, Australian Res Council ARC, Ind Transformat Training Ctr Surface Engn Adv Mat, Hawthorn, Vic 3122, Australia

[4] Swinburne Univ Technol, Acad Operat Unit, Hawthorn, Vic 3122, Australia

[5] ANSTO Australian Synchrotron, Infrared Microspect IRM Beamline, 800 Blackburn Rd, Clayton, Vic 3168, Australia

[6] Tokyo Inst Technol, WRH Program Int Res Frontiers Initiat IRFI, Midori Ku, Nagatsuta Cho, Yokohama, Kanagawa 2268503, Japan

来源：

MATERIALS | 2022年 / 15卷 / 22期

基金：

澳大利亚研究理事会;

关键词：

laser-induced forward transfer; high-entropy alloys; microparticles;

D O I：

10.3390/ma15228063

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The controlled deposition of CoCrFeNiMo0.2 high-entropy alloy (HEA) microparticles was achieved by using laser-induced forward transfer (LIFT). Ultra-short laser pulses of 230 fs of 515 nm wavelength were tightly focused into similar to 2.4 mu m focal spots on the similar to 50-nm thick plasma-sputtered films of CoCrFeNiMo0.2. The morphology of HEA microparticles can be controlled at different fluences. The HEA films were transferred onto glass substrates by magnetron sputtering in a vacuum (10(-8) atm) from the thermal spray-coated substrates. The absorption coefficient of CoCrFeNiMo0.2 alpha approximate to 6 x 10(5) cm(-1) was determined at 600-nm wavelength. The real and imaginary parts of the refractive index (n + ik) of HEA were determined from reflectance and transmittance by using nanofilms.

引用

页数：13

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