Article - 20 Jul 2001
Bismuth is one of few metals that increase in volume upon solidification. It is the most diamagnetic of metals and has the second lowest thermal conductivity. Uses are catalysts, fire protection,...
Article - 24 Jul 2003
Mercury is generally considered to be a harmful substance. Presented herein is a unbiased account of mercury, its compounds, and its uses.
Article - 23 Jul 2001
Ancient Chinese and Hindus were familiar with mercury (Hg). The metal was also found in Egyptian tombs of 1500 BC. Mercury rarely occurs as such in nature.
Article - 21 Jan 2013
Mercury alloyed with a number of metals forms amalgam, which is primarily used for dental fillings. The common constituents of amalgam are mercury, tin, silver, copper and other trace metals.
Article - 28 Jul 2006
This overview on aluminium covers aspects from its discovery, its sources including raw materials, the properties that make it so attractive, common processing techniques and applications.
Article - 16 May 2002
Ceramic materials have been used dentistry for many years. Their use increasing, partly due to aesthetic reasons. Some applications where ceramics are used in dentistry are fillings, crowns, veneers,...
Article - 2 Jun 2001
Tooth filling materials such as silver amalgams, resin-based composites and ion-leachable glass cements are covered. Cast metals, bonded restorations, ceramics and composite implant materials are also...
Article - 8 Oct 2002
The design and performance parameters of ceramic materials in dental restorations are reviewed. Systems such as feldspathic porcelains, leucite systems, castable glasses, alumina-based systems and...
Article - 14 May 2002
The densities of a variety of biomaterials are compared to those of teeth, bone and other related materials. Biomaterials covered include orthopaedic, dental and vascular materials.
Article - 14 Aug 2019
This article discusses placer gold mining.