Influence of Substrate Temperature on Diamond Like Carbon Film on Mechanical Heart Valve

Abstract

Abstract:

In order to find out the rule for temperature of mechanical heart valves to influence diamond like carbon (DLC) film, the diamond like carbon films were deposited on mechanical heart valves by the pulsed laser deposition while the temperature of the mechanical heart valve kept chamber temperature and 150℃ respectively and other experimental conditions were kept unchangeable. The microstructure of the film was detected by the visible Raman spectroscopy. The topography and roughness of the film were detected by the atomic force microscopy (AFM). The experimental result demonstrates when the temperature of the mechanical heart valve increases from chamber temperature to 150℃, change of the film microstructure would not be obvious. The roughness of film surface would reduce. The diamond like carbon film would exhibit strong adhesion to mechanical heart valve.

Key words: materials, diamond like carbon film, pulsed laser deposition, substrate temperature, microstructure, topography

CLC Number:

TN249
O484

LUO Le，JIANG Dapeng，ZHAO Duliang，YAN Zhongya，CHENG Guangcun，FANG Xiaodong . Influence of Substrate Temperature on Diamond Like Carbon Film on Mechanical Heart Valve[J]. J4, 2015, 32(4): 498-502.

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