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Supercapacitors

Supercapacitors are in effect a cross between capacitors and batteries, combining the beneficial properties of both. A more detailed explanation of what they are, how they work, the materials involved and applications is given.

4 Jul 2002

Vacuum Induction Melting and Casting

Vacuum induction melting is a process used for high purity metals and alloys. The process and furnace components are outlined. The types of materials typically processed, removal of impurities and some applications are also covered.

4 Jul 2002

Titanium and Titanium Alloys - Diffusion Bonding

Diffusion bonding is an increasingly popular method used for joining titanium and its alloys. Liquid and solid state diffusion bonding are covered as well as why the processes are suited to use with titanium.

3 Jul 2002

Titanium and Titanium Alloys - Welding and Brazing

Titanium alloys can be joined by fusion, resistance, flash-butt, explosion, friction, plasma, TIG, MIG and electron beam welding. There is particular emphasis on TIG, electron beam, plasma, resistance welding and brazing in this article as well as tips to produce good welds.

1 Jul 2002

Titanium and Titanium Alloys - Sheet Metal Working

Tips for working with titanium and titanium alloy sheets are covered. Work rates, use of lubricants, plastic films and tips for increasing ductility and working at elevated temperatures are all outlined.

1 Jul 2002

Titanium and Titanium Alloys - Hot Working

This article contains helpful hints on hot working of titanium and titanium alloys. Processes specifically mentioned include press and hammer forging. Variables covered include thermal conductivity, metal thickness, pre and re-heating, work rate and effects on microstructure .

1 Jul 2002

Coating Thickness Measurement via X-Ray Fluorescence - Non-Destrictive Testing

X-Ray fluorescence is probably best known for compositonal analysis. However, it can also be used as a form of non-destructive testing for measuring coating thickness. The basic system, technique and case studies are briefly outlined.

27 Jun 2002

An Introduction to Rhenium

Rhenium is one of the densest materials and has one of the highest melting points of all materials. It is produced as a by-product of copper smelting and has many useful properties. Its occurrence, production, properties, fabrication and applications are covered.

From Goodfellow 27 Jun 2002

Rubber from Sunflowers

Sunflowers are a source of natural rubber. Researchers at Colarado State University are working on developing new varieties that produce increased amounts of rubber. Posted May 2002

27 Jun 2002

Electronic Paper Overview

Traditional printing on paper is now under threat from electronic paper and e-inks. The technology used for the flexible paper and the electronic ink materials are all covered.

26 Jun 2002