Article - 15 Apr 2008
Sediments are geologic materials that are formed in one place, moved to another, and deposited. The study of ocean and lake sediments provides a wealth of information about the geological history of a...
Article - 21 Mar 2006
In this article zeolite membranes were synthesized by the dry gel method, using a tubular support of stainless steel. The membranes were able to separate different gases such as N2, SF6, and...
Article - 9 Jan 2006
A geopolymer was prepared by dissolving metakaolinite in a solution of K2SiO3 and KOH and curing at 80C for 24 h. The open porosity of the material was ~38% at 1000C, which is sufficiently porous for...
Article - 7 Jul 2010
Tool steels are important materials and cover a wide range of compositions from simple plastic molding die steels or water-hardening carbon steels to very highly alloyed high-speed steels.
Article - 10 Jan 2003
The performance of titanium, or more specifically, the stability of the titanium oxide film in various environments is outlined. Some environments include chlorine, water, mineral acids, salt...
Article - 13 Mar 2002
Steel will corrode in most environments. Its behaviour in concrete is addressed. Aspects such as the concrete environment, factors affecting corrosion rates, production realities, deterioration...
Article - 11 May 2006
In this work different nickel precursors and bases yielded NiO particles with different sizes for uses in catalysts. NiO particles from Ni(NO3)2 were the largest followed by NiO from NiCl2 and NiSO4...
Article - 27 Dec 2010
Ceramic materials based on perovskite-like oxides are of significant interest because of their applications in electrical and electronic devices.
Article - 30 Nov 2005
Titanium and cobalt alloys were subjected to a biomimetic process mimicing human blood plasma or a simulated body fluid in order to coat the surface with a bone like ceramic apatite layer.
Article - 23 Jun 2016
Based in Salzburg Austria, MACO is a leading international manufacturer of window and door fittings. The company was established in 1947 and now has a international workforce of around 2300 personnel,...