Preliminary Testing of Metal-Based Thermal Barrier Coating in a Spark-Ignition Engine

被引：3

作者：

Marr, Michael A. ^{[1
]}

Wallace, James S. ^{[1
]}

Pershin, Larry ^{[1
]}

Chandra, Sanjeev ^{[1
]}

Mostaghimi, Javad ^{[1
]}

机构：

[1] Univ Toronto, Dept Mech & Ind Engn, Toronto, ON M5S 3G8, Canada

来源：

JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME | 2010年 / 132卷 / 07期

关键词：

heat transfer; internal combustion engines; surface roughness; thermal barrier coatings;

D O I：

10.1115/1.4000298

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A novel metal-based thermal barrier coating was tested in a spark-ignition engine. The coating was applied to the surface of aluminum plugs and exposed to in-cylinder conditions through ports in the cylinder wall. Temperatures were measured directly behind the coating and within the plug 3 and 11 mm from the surface. In-cylinder pressures were measured and analyzed to identify and quantify knock. Test results suggest the coating does not significantly reduce overall heat transfer, but it does reduce the magnitude of temperature fluctuations at the substrate surface. It was found that heat transfer can be reduced by reducing the surface roughness of the coating. The presence of the coating did not promote knock. (C)2010 American Society of Mechanical Engineers

引用

页数：7

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