ANALYSIS OF THE STRUCTURE OF DEPOSITED MATERIALS AT INNER SURFACE OF JET FUEL INJECTOR FEED ARM WITH OPTICAL AND SCANNING ELECTRON MICROSCOPY

摘要

An experimental technique was used to reveal the true structure of deposit generated on the inner surface of a jet engine feed arm injector under rigorous condition close to the real jet fuel system. This is represented by a stainless steel tube through which jet fuel passes and is thermally stressed by the application of Aviation Fuel Thermal Stability Test Unit. Subsequently the tube deposit containing was prepared for the surface analysis with Optical Light Microscopy and Scanning Electron Microscopy. In addition, energy dispersed X-ray spectroscopy was used to determine the elemental analysis of the deposit layer.