Ceramic / Metallic Thermal Barrier Coatings
Consider the Advantages of Using a Thermal Barrier Coating
The high performance engines of today take a lot of abuse. To build an engine with substantial horsepower, we usually turn to pop-up pistons, big carbs, high flow exhaust and a high-output ignition system to get peak output. These parts work great but generally generate higher thermal output as a by product.
High-tech coatings for engine and driveline parts have been around for decades. Early coatings sometimes deserved the reputation for poor durability and ineffectiveness, but when you consider most of the top Winston Cup and Top Fuel teams (and even a few OEM's) use several types of coatings in their engines today, they've proven their performance benefits.
There are three main types of coatings, and their names define their functions; thermal-barrier, heat dispersion and low-friction.
Thermal-Barrier coatings help to retain heat, Heat-Dissipating coatings help to move heat away and Low-Friction coatings help to reduce power-robbing heat friction.
Heat makes power, the more heat you can generate, the more power an engine will produce. Unfortunately, the internal combustion engine is inefficient when it comes to managing heat, using only about 20 percent of the heat energy created in the combustion chamber. Most of the heat escapes through the exhaust system or is absorbed into the engine and removed by the cooling system. Obviously you can't eliminate the exhaust system and the cooling system is mandatory.
The purpose of the thermal barrier coatings is to effectively contain and manage the heat that is created when combustion occurs, this optimizes the efficiency of combustion.