Charpy testing is a method for determining the relative impact strength of metals. It is also known as Charpy V notch test.
Mandrel forging is a forging operation that is done with the help of a tool called mandrel. A mandrel is a blunt ended tool or a rod that is sued to enlarge or retain the cavity in a hollow metal product during forging.
3D printing or additive manufacturing is a technique used for fabricating 3D solid objects from a digital model. Additive processes are used to achieve 3D printing, wherein successive material layers are laid to create an object.
By G.P. Thomas
21 Aug 2013
Mercury (II) iodide is a chemical compound that exists in red-orange crystals. It is highly reactive to lead salts, iodoform, chlorides, light, heat, hydrogen peroxides and copper salts. Unlike mercury (II) chloride, it is hardly soluble in water.
All that time spent playing with plastic bricks as a kid may finally be paying off, as tiny composite blocks developed by MIT have been used to create a lightweight structure and could lead to much more design freedom in composite manufacturing.
By G.P. Thomas
19 Aug 2013
Tin dioxide is an inorganic compound with the chemical formula SnO2. It mainly occurs in the mineral, cassiterite. It is a colorless, amphoteric and diamagnetic solid that is usually considered as an oxygen-deficient n-type semiconductor.
Stellite alloys are a group of cobalt-chromium 'super-alloys' consisting of complex carbides in an alloy matrix predominantly designed for high wear resistance and superior chemical and corrosion performance in hostile environments.
By Nick Gilbert
15 Aug 2013
Cadmium zinc telluride is an alloy of zinc telluride and cadmium telluride. It has a high electro-optic coefficient and transparency in the mid-infrared region.
Gallium arsenide phosphide is a semiconductor material and an alloy of gallium phosphide and gallium arsenide. It exists in various composition ratios denoted by x in its formula.
Metal matrix composites (MMCs) are composite materials containing at least two constituent parts – a metal part and a material or a different metal part.