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• Arc Welding
  ...n in the areas near the welds where the temperature-time was favorable for forming the carbide. This kind of corrosion is often termed weld decay. ...does not precipitate, and the steel then behaves like unstabilized steel, forming chromium carbide instead. This affects only a thin zone several millimeters
  22 KB (3,345 words) - 11:03, 20 June 2010
• Welding Rod
  ...compound sodium metasilicate, Na2SiO3, also known as water glass or liquid glass. It Potassium Silicate (K2SiO3) glass is a colorless super-cooled melt of Potassium Carbonate and pure Silica San
  7 KB (1,130 words) - 16:26, 29 August 2010
• Acetic acid
  To emphasize the role of the active hydrogen in forming the salt sodium acetate, some people write the molecular formula as HC<sub> ...corrosive]] to [[metal]]s including [[iron]], [[magnesium]], and [[zinc]], forming [[hydrogen]] gas and metal salts called acetates. [[Aluminium]], when expos
  41 KB (5,915 words) - 15:49, 27 September 2010
• Mercury (element)
  ...se electrons are more easily removed and are shared between the gold atoms forming relatively strong [[metallic bonds]].<ref name="Norrby">{{cite journal|auth ...can "eat through" a large amount of aluminium over time, by progressively forming amalgam and relinquishing the aluminium as oxide.<ref name="CorrAl">{{cite
  69 KB (10,077 words) - 20:35, 20 September 2010
• Paste (rheology)
  ...are jammed together like [[sand]] on a [[beach]], forming a disordered, [[glass]]y or [[amorphous]] structure, and giving pastes their solid-like character
  1 KB (189 words) - 09:07, 20 September 2010
• Fiber
  ...tural raw materials and [[silica fiber]], made from sodium silicate (water glass). ...untermeasure)|radar chaff]]. Radar chaff is actually a spool of continuous glass tow that has been aluminum coated. An aircraft-mounted high speed cutter ch
  8 KB (1,192 words) - 09:08, 20 September 2010
• Ceramic materials
  ...not a ceramic because it is an amorphous solid (non-crystalline). However, glass involves several steps of the ceramic process and its mechanical properties ...injection moulding, dry pressing, and other variations. (See also Ceramic forming techniques. Details of these processes are described in the two books liste
  28 KB (3,876 words) - 09:08, 20 September 2010
• Liquid crystal polymer
  ...vent (lyotropic liquid-crystal polymers) or by heating a polymer above its glass or melting transition point (thermotropic liquid-crystal polymers). ...eeds with excellent replication of mold details. In fact, the high ease of forming of LCPs is an important competitive advantage against other plastics, as it
  4 KB (613 words) - 09:09, 20 September 2010
• Environmental stress cracking
  ...er’s chain mobility. The result is a decrease in the yield stress and [[glass transition temperature]] (T_g), as well as a plasticisation of th ...tes stress concentration, possibly the combination of residual stress from forming and the action of the spring. It was concluded that although there was resi
  9 KB (1,372 words) - 09:09, 20 September 2010
• Viscometer
  ...ther version is the [[Ubbelohde viscometer]], which consists of a U-shaped glass tube held vertically in a controlled temperature bath. In one arm of the U ...falling sphere viscometer, in which the fluid is stationary in a vertical glass tube. A sphere of known size and density is allowed to descend through the
  17 KB (2,664 words) - 09:09, 20 September 2010
• Biopolymer
  ...ause of increasing prices and decreasing availability of conventional film-forming resins. Starch films possess low permeability and are thus attractive mater Acetylated starch does have several advantages as a structural fibre or film-forming polymer as compared to native starch. The acetylation of starch is a well-k
  68 KB (9,959 words) - 09:10, 20 September 2010
• Polypropylene
  ...lored but is not as readily made transparent as [[polystyrene]], [[acrylic glass|acrylic]], or certain other plastics. It is often [[Opacity (optics)|opaque ...sed for plastic moldings, wherein it is injected into a mold while molten, forming complex shapes at relatively low cost and high volume; examples include bot
  25 KB (3,657 words) - 09:10, 20 September 2010
• Polysulfone
  ...produced by the reaction of a di[[phenol]] and bis(4-chlorophenyl)sulfone, forming a [[polyether]] by elimination of [[sodium chloride]]: ...to boiling water or 150 °C air or steam generally falls below 0.1%. Its [[glass transition temperature]] is 185 °C.
  5 KB (716 words) - 09:10, 20 September 2010
• Thermoplastic elastomer
  Since most polymers are incompatible with one another, forming a block polymer will usually result in phase separation, and the principle ...nglish/product/automotive/index.html Exelast SX] are used for extrusion of glass run and dynamic [[Weatherstripping]] car profiles.
  11 KB (1,609 words) - 09:10, 20 September 2010
• Styrene-butadiene
  ...product from forming. High styrene-content rubbers are hard, since the Tg (glass transition temperature) of butadiene is extremely low. The production proce *[[Glass transition temperature]] approximately {{convert|-55|°C|°F}}, but varies
  5 KB (640 words) - 09:10, 20 September 2010
• Polyethylene terephthalate
  ...ermoforming applications; and engineering resins often in combination with glass fiber. | [[Glass transition temperature|Glass temperature]]
  43 KB (6,272 words) - 09:11, 20 September 2010
• Polymer
  ...s. Long chain branches may increase polymer strength, toughness, and the [[glass transition temperature]] (T_g) due to an increase in the number o ...ich may form chemical covalent bonds. The basic functionality required for forming even a linear chain is two bonding sites. Higher functionality yields branc
  45 KB (6,501 words) - 09:11, 20 September 2010
• Polycarbonate
  <tr><td>[[Glass transition temperature|Glass transition temperature(T_g)]]</td><td>150 °C</td></tr> ...t]] and has better light transmission characteristics than many kinds of [[glass]].
  20 KB (2,772 words) - 09:11, 20 September 2010
• Nanocellulose
  ...in the same size order as for instance [[Kevlar]] and is better than e.g. glass fibres, both fibres are used commercially to reinforce plastics. Films made The properties of nanocellulose (e.g. mechanical properties, film-forming properties, viscosity etc.) makes it an interesting material for many appli
  25 KB (3,447 words) - 09:11, 20 September 2010
• Polyethylene
  ...o fit over a metal nipple and it will slowly return to its original shape, forming a permanent, water-tight, connection. ...ucture|crystallinity]] and [[molecular weight]], a [[melting point]] and [[glass transition]] may or may not be observable. The temperature at which these o
  20 KB (2,802 words) - 09:11, 20 September 2010

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