Bonding, density, and thickness of coatings have a vital effect on their performance in many applications. Pioneering development work on thermal wave nondestructive evaluation (NDE) methods during the past 25 years has resulted in an array of useful techniques for performing bonding, density, and thickness measurements in a practical shop environment. The most useful thermal wave methods for this purpose are based on thermal wave surface impedance measurement or scanning. A pulse of heat from either a thermal transducer or a hot gas pulse is projected onto the surface, and the resulting temperature response is analyzed to unfold the bonding, density, and thickness of the coating. An advanced emissivity independent infrared method was appli...
Suspension of flat plate in parallel heated air stream - ablation and melting wave behavio
Submitted in partial fulfillment of the requirements for the degree of Masters of Science at the Mas...
Experimental measurements are reported, on the velocity fields and turbulence parameters on a water ...
Techniques for measuring the impedance of the muffler configurations and of porous plates with grazi...
A thin film device was designed and fabricated to measure surface temperatures. An array of eight in...
The theoretical and experimental framework for thickness measurements of thin metal films by low fre...
An investigation was conducted to explore potential improvements provided by a Multi-Point Method (M...
Thin film phosphorus pentoxide cell for improved sensitivity and response time of moisture mete
A 163 micron (1.836 THz) radiometer developed for airplane and/or balloon platforms is described. Th...
A finite element model was developed to solve for the acoustic pressure field in a nonhomogeneous re...
Thermal analysis (BETA) computer program adaptations were prepared to analyze phase change histories...
Impedance characteristics of irradiated thin films - resistance drift and infrared measurements on b...
Published hydro-optical theory pertinent to this study is critically reviewed; the optical quality o...
The potential role of silicides in VLSI (very large scale integration) Si technology is described. A...
The acoustical properties of locally and nonlocally reacting acoustical liners in grazing flow are d...
Suspension of flat plate in parallel heated air stream - ablation and melting wave behavio
Submitted in partial fulfillment of the requirements for the degree of Masters of Science at the Mas...
Experimental measurements are reported, on the velocity fields and turbulence parameters on a water ...
Techniques for measuring the impedance of the muffler configurations and of porous plates with grazi...
A thin film device was designed and fabricated to measure surface temperatures. An array of eight in...
The theoretical and experimental framework for thickness measurements of thin metal films by low fre...
An investigation was conducted to explore potential improvements provided by a Multi-Point Method (M...
Thin film phosphorus pentoxide cell for improved sensitivity and response time of moisture mete
A 163 micron (1.836 THz) radiometer developed for airplane and/or balloon platforms is described. Th...
A finite element model was developed to solve for the acoustic pressure field in a nonhomogeneous re...
Thermal analysis (BETA) computer program adaptations were prepared to analyze phase change histories...
Impedance characteristics of irradiated thin films - resistance drift and infrared measurements on b...
Published hydro-optical theory pertinent to this study is critically reviewed; the optical quality o...
The potential role of silicides in VLSI (very large scale integration) Si technology is described. A...
The acoustical properties of locally and nonlocally reacting acoustical liners in grazing flow are d...
Suspension of flat plate in parallel heated air stream - ablation and melting wave behavio
Submitted in partial fulfillment of the requirements for the degree of Masters of Science at the Mas...
Experimental measurements are reported, on the velocity fields and turbulence parameters on a water ...