Papers – Page 7 – TechConnect Briefs

Analysis of High Average Breakdown Fields between Gate and Drain in AlGaN/GaN HEMTs with High-k Passivation Layer

Tomita R., Ueda S., Kawada Y., Horio K., Shibaura Institute of Technology, JP

AlGaN/GaN HEMTs are now receiving great interest for application to high-power microwave devices and high power switching devices. To improve the breakdown voltage, the introduction of field plate is shown to be effective, but it [...]

Enhanced Corrosion Detection By Means of Multispectral Imaging and Postprocessing Techniques

Giegerich W.V., Fedorishin D.C., Forte III L., Christie L., Schneider P.J., Oh K.W., University at Buffalo, US

This research focuses on the implementation of an enhanced corrosion detection algorithm using multispectral imaging techniques and post-processing image filters. Utilizing various combinations of light filters with image enhancement software, we are able to increase [...]

Vascular Test Phantom Metrology For Use In Photoacoustic Applications

Christie L.B., Schneider P., Oh K.W., University at Buffalo, US

The field of photoacoustics is increasing as new discoveries are being made showing potential for a system that is capable of higher resolution medical imaging, noninvasive vital monitoring, and cancer diagnostics. This research focuses on [...]

Post-Process Superfinishing Of Additively Manufactured Components For Next-Gen Space Application: A Primer On The Implementation Of Metal Additive Manufacturing, Its Promises And Challenges, And The Need For Novel Superfinishing Technology

Michaud N.B., REM Surface Engineering, US

Growing adoption of Metal Additive Manufacturing (AM) technologies promises revolutionary beneficial changes in manufacturing, however, in many industries, particularly industries such as Aerospace (with complex qualifying standards), challenges in the form of various defects/flaws (both [...]

Experimental and Analytical Analysis for Advanced Hot Runner Based Injection Molding

Alqosaibi K., Thakur C., Noor H., Almalki A., Duhduh A., Coulter J.P., Lehigh University, US

A novel technology “Rheodrop” was developed to advance the process of hot runner based injection molding. The technology applies controllable shear rate to the polymer melt during and between injection molding cycles. The application method [...]

Vibration Assisted Injection Molding: An Innovative Energy Efficient Processing Technique for Poly-Lactic Acid (PLA) with Enhanced Properties

Gao P., Duhduh A., Xing J., Kundu A., Coulter J.P., Lehigh University, US

This work is focused on the development of time and energy efficient injection molding processing strategies to fabricate semi-crystalline plastic components with enhanced properties. A Vibration Assisted Injection Molding (VAIM) process was devised for this [...]

Investigation of Bulk Metallic Glass Tooling Lifetime for Microinjection Molding

Almalki A., Rajhi A., Noor H., Kundu A., Coulter J.P., Lehigh University, US

The lifetime of a commercially available zirconium based bulk metallic glass (BMG) for microinjection molding (μIM) was investigated in this research. The primary objective was to understand the effect of the molding conditions on the [...]

Investigation of Fidelity of Micro Molded Features Using Microinjection Molding Process

Rajhi A., Almalki A., Coulter J.P., Lehigh University, US

This paper investigates the influence of selected processing parameters of microinjection molding on the replication fidelity of micro molded features. Parameters were altered in order to find to what extent the microfeatures can be stretched [...]

At the frontier of in-space production: Harnessing microgravity for manufacturing

Reeves R.D., Savin K.A., Center for the Advancement of Science in Space, US

Since the dawn of human space exploration, there have been dreams of manufacturing products in space of such quality and novelty that they improve life on Earth. And over the past 50 years, microgravity research [...]

Layered Structures – Innovative Tube/Pipe Manufacturing Process

Ritchie C., McNeil K., Techreo, US

High Performance Tubular Structures (HPTS) is an emerging technology being developed by Techreo in the Cincinnati, Ohio area. HPTS will provide breakthrough performance advantages in a wide range of metal tubular structures, including pipes transporting [...]