1 . Concent ra t ion changes i n s o l u t i o n dur ing a d d i t i o n of HIYO. waste t o 2 . Concent ra t ion changes i n s o l u t i o n du r ing a d d i t i o n of HNO, waste t o 3 . Concent ra t ion changes i n s o l u t i o n du r ing a d d i t i o n of C r waste t o 4 . Concent ra t ion changes i n s o l u t i o n dur ing a d d i t i o n of C r waste t o 5 . Concent ra t ion changes i n...

Disposal of metal finishing wastes is one of the most critical industrial waste problems in the United States today. Recent legislation greatly restricts the discharge of most heavy metals to watercourses and future discharge regulations may further restrict their release to the environment. Furthermore, interest in developing possible methods for reclaiming metals from plating waste streams is...

Electron-conductive polymers were first reported in 1971 by Shirakawa and co-workers [1]. They synthesized conducting polyacetylene and found that it had a considerably high conductivity relative to other organic compounds, 10 S cm 1 [1–3]. Since 1971, various conducting polymers and their synthesis mechanisms have been studied actively by many researchers [4]. The conductivities of these polym...

We have developed low-temperature surface micromachining procedures for the fabrication of suspended SiO2 /Si3N4 membranes. This fabrication method was integrated with electron beam lithography, anisotropic ion etching, and electroplating to construct electrostatically deflectable tunnel transducers. We show the structures and some preliminary measurements on the performance of these monolithic...

We use high voltage electron beam lithography followed by electroplating to define small metal features on semiconductor substrates. These have been used to form high resolution etch masks, dense nanomagnet arrays, and highly anisotropic metal nanostructures. To reproducibly obtain uniform arrays of such structures, we have developed an end-point detection technique, which is based on in situ o...

In our experiments, we use different photoresists for proton beam writing and mold fabrication. We have fabricated Ni mold with structures down to 500 nm. We first use a fine focused proton beam to expose different photoresists, Polymethyl Methacrylate (PMMA), AR-P 3250 and ma-N 2410. After development and nickel sulfamate electroplating, the structures were faithfully transferred from the phot...

A cost-effective and reliable Ni-Au contact on nanostructured Bi2Te3-based alloys for a solar thermoelectric generator (STEG) is reported. The use of MPS SAMs creates a strong covalent binding and more nucleation sites with even distribution for electroplating contact electrodes on nanostructured thermoelectric materials. A reliable high-performance flat-panel STEG can be obtained by using this...