Article - 23 Oct 2002
The development of a hydroxyapatite-polyethylene composite has heralded a new generation of biomaterials. Tailoring the composition has given the composite mechanical properties similar to human bone...
Article - 10 Oct 2002
Electronic tagging is a relatively new technology which could result in significant cost savings through improved traceability, processing and crime/theft prevention. The technology, materials,...
Article - 11 Sep 2002
Three important calcium aluminate hydrates develop during HAC hydration, namely two meta-stable phases, C2AH8, and CAH10, and the stable phase C3AH6.
Article - 9 Aug 2002
The issues involved with the establishment of a pan-European set of standards covering gas cylinders is explored. Such things are materials, design, testing and inspection are all covered.
Article - 26 Jul 2002
Technologies that use metal powders such as powder metallurgy and thermal spraying have demanded finer powders. The production of finer powders results in defects such as splat caps and satelliting...
Article - 13 Jun 2002
Hydroxyapatite is a hydrated calcium phosphate. As such it dehydroxylates and decomposes upon exposure to elevated temperatures.
Article - 7 May 2002
Niobium was first discovered by Hatchett in 1801, but this metal was produced only in 1864, when Blomstrand reduced niobium chloride.
Article - 14 Feb 2002
Surface treatments are applied to titanium for a variety of reasons such as prevention of galling. Recommendations are also made for acid and brush cleaning of titanium components.
Article - 15 Jan 2002
Zirconium is usually contaminated with hafnium due to their chemical similarity. It is resistant to most solvents and performs well in nuclear reactors, where most zirconium metal is used.
Article - 18 Oct 2001
Development work on nanosized lithiated titania has found that it is able to charge and discharge at rates that are orders of magnitude higher than more conventional material. This behaviour makes it...