New reinforcing technique of alumina coatings on steel substrates

被引:0
|
作者
Gheorghies, C. [1 ]
Condurache-Bota, S. [1 ]
Dinescu, M. [2 ]
Constantinescu, C. [2 ]
Cazacu, N. [3 ]
机构
[1] Dunarea Jos Univ, Fac Sci, Galati 800201, Romania
[2] Natl Inst Laser Phys Plasma & Radiat INFLPR, Bucharest 077125, Romania
[3] Dunarea Jos Univ, Fac Met & Mat Sci, Galati 800201, Romania
来源
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2008年 / 2卷 / 09期
关键词
coating; alumina; pulse laser deposition; laser drilling; reinforcement;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Alumina protective coatings were made on steel samples by pulsed laser deposition. Improvement of the thermal shock resistance of the steel is the main purpose of such a steel coating. The adhesion of the aluminum oxide thin layer on the steel base was increased by a whole new technique. Thus, microdimensional holes were done in the coating by a pulsed Nd:YAG laser. The characteristics of the laser and the geometry of the experiment were analyzed and they were chosen and used in order to have a cylindrical shape of the holes and also with the purpose that the laser spot would reach the steel substrate. Thus, small columns of steel emerged through the holes, reinforcing the coatings.
引用
收藏
页码:569 / 577
页数:9
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