Catalytic Growth of High-Performance Graphite-like Carbon Films on a Nitrided Substrate: Experimental Study and First-Principles Calculations.
Catalytic Growth of High-Performance Graphite-like Carbon Films on a Nitrided Substrate: Experimental Study and First-Principles Calculations.
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DOI：
10.1021/acsami.3c10944
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发表时间：
2023-10
影响因子：
9.5
通讯作者：
Jie Li;Lei Sun;Jinming Xie;Yang Yang-Yang;Dongyang Li;Shihong Zhang
中科院分区：
文献类型：
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作者：
Jie Li;Lei Sun;Jinming Xie;Yang Yang-Yang;Dongyang Li;Shihong Zhang
本研究报告了一种新的工艺，用于制造高性能的类石墨碳（GLC）薄膜的氮化基板上，通过连续的步骤，在等离子体氮化系统。与传统的双重处理（氮化+薄膜沉积）制造的薄膜不同，这里制造的GLC薄膜通过催化反应生长在氮化钢表面上。在GLC膜和氮化基体的界面处观察到一个具有纳米晶和非晶结构的过渡区，该过渡区增强了GLC膜在氮化基体上的附着力，提高了GLC膜的耐磨性和耐磨损性，从而提高了GLC膜的耐久性。实验研究和第一性原理计算表明，Fe3N相对GLC膜的催化作用强于Fe4N相，且由于界面处形成的有利结构，在以Fe3N为主的氮化层上生长的GLC膜比在以Fe4N为主的氮化层上生长的GLC膜更厚、附着力更强、摩擦磨损性能更优异。本研究提出一种简单且廉价的方法，借由触媒成长与界面匹配机制，制备出具有高效能GLC薄膜的双层结构。
This study reports a novel process for the fabrication of high-performance graphite-like carbon (GLC) films on nitrided substrates through successive steps in a plasma nitriding system. Unlike films fabricated via conventional dual treatments (nitriding + film deposition), here-fabricated GLC films were grown on the surface of nitrided steel via a catalytic reaction. A transition zone having a nanocrystalline and amorphous structure was observed at the interface between the nitrided substrate and GLC films, which increased the durability of GLC films because this structure enhanced the adhesion of GLC films on the nitrided substrate, improving resistance to spallation and wear. Experimental study and first-principles calculations showed that the Fe3N phase had a stronger catalytic effect on GLC films than the Fe4N phase, and GLC films grown on the nitrided layer dominated by Fe3N were thicker with stronger adhesion and excellent frictional and wear properties compared with GLC films grown on the nitrided layer dominated by Fe4N because of the beneficial structure formed at the interface. This study reports a simple and inexpensive method to fabricate a dual layer containing high-performance GLC films via a catalytic growth and interface matching mechanism.