Article - 21 Sep 2005
CoAl2O4 and NiAl2O4 spinels were prepared by sol-gel method with citric acid. The formation of CoAl and NiAl spinels was investigated, changing the calcination temperatures and the molar ratio of...
Article - 20 Sep 2005
In general, PVD-TiN coated High Speed Steel endmills used to machine carbon steels can perform better at high cutting speeds compared with uncoated tools resulting in better surface finish and longer...
Article - 15 Mar 2005
The aim of this article was to study the emergence of blemishes on the inner surface of aluminum MDI cans.
Article - 22 Jun 2004
Nickel is currently experiencing an incredible price rise. Reasons for this are reported. Factors such as demand and markets are explored, as well as factors that will play a role into the future...
Article - 21 Oct 2002
Tantalum is a refractory metal used mainly for making capacitors and as an alloying additive. Its main sources are described as well as a new source in Saudi Arabia. The sources of Tantalum such as...
Article - 4 Mar 2002
The excellent properties possessed by titanium make it a highly useful material. Applications in aerospace (e.g. engines and structures)and industrial applications are covered, as are emerging...
Article - 5 Feb 2002
Titanium is highly resistant to corrosion by water, steam and seawater, except at elevated temperatures. Other corrosion mechanisms such as stress corrosion cracking, corrosion fatigue, biofouling,...
Article - 14 Dec 2001
This article explores the issue of how long a photovolatic system must operate to account for energy and pollution created in the manufacture of the system. It takes into account the different...
Article - 9 Oct 2001
Metallic powders are good absorbers of microwaves and can be sintered by microwave radiation. Processing in this way has advantages over conventional methods including faster and more energy efficient...
Article - 20 Aug 2001
Properties such as low density, good strength at elevated temperatures, high strength and excellent corrosion resistance have seen titanium used extensively in industries such as aerospace, process...