According to Mathur et al., "the modern fountain pen nib may be traced back to the original gold nib which had a tiny fragment of ruby attached to form the wear-point." Following the discovery of the
platinum group of metals which include
ruthenium,
osmium and
iridium, "a small quantity of iridium was isolated and used on the iridium-tipped gold
dip pen nibs of the 1830s".
Nib plating Further gold plating provides favorable
wettability, which is the ability of a solid surface to reduce the
surface tension of a liquid in contact with it such that it spreads over the surface.
Nib tipping Gold and most steel and titanium nibs are tipped with a hard, wear-resistant alloy that typically includes metals from the platinum group. These metals share qualities of extreme hardness and corrosion resistance. The tipping material is often called iridium, but few, if any, nib or pen manufacturers have used tipping alloys containing iridium since the mid-1950s. The metals
osmium,
rhenium,
ruthenium and
tungsten are used instead, generally as an alloy, shaped into tiny pellets which are soldered or welded onto the nib tip before the nib slit is cut and the tip ground into its final shape. Untipped steel and titanium points will wear more rapidly due to abrasion by the paper. The breather hole allows air into the feed, and back up to the sac. The breather hole also acts as a stress relieving point, preventing the nib from cracking longitudinally from the end of the slit as a result of repeated flexing during use. Adding distance between the breather hole and the nib tip adds elasticity or flexibility to the nib. The whole nib narrows to a point where the ink is transferred to the paper. Broad
calligraphy pens may have several slits in the nib to increase ink flow and help distribute it evenly across the broad point. Nibs divided into three "tines" are commonly known as music nibs. This is because their line, which can be varied from broad to fine, is suited for writing musical scores.
Types of nib Although the most common nibs end in a round point of various sizes (extra fine, fine, medium, broad), various other nib shapes are available. Examples of this are oblique, reverse oblique, stub, italic and 360-degree nibs. Broader nibs are used for less precise emphasis, with the benefit of a greater level of ink shading and/or sheen on less absorbent paper. Finer nibs (e.g., EF and F) may be used for intricate corrections and alterations, at the expense of shading and sheen. Oblique, reverse oblique, stub and italic nibs may be used for
calligraphic purposes or for general handwritten compositions. The line width of a particular nib may vary based on its country of origin; Japanese nibs are often thinner in general.
Nib flexibility Flexibility is given to nibs in several ways. First, thickness of the nib metal changes flex. When the nib alloy has been pressed thick it will result in a hard nib, while thinly pressed nibs are more flexible. Nibs can be pressed so that they are thinner at the tip and thicker at the feed to mitigate stiffness or to give a more controlled flex. Second, the curve of the nib determines in part how stiff the nib will be. Nibs pressed into more deeply convex curves, or into three or five faceted curves, will be stiffer than flatter nibs. Third, the "breather hole" size, shape, and position alter the stiffness. Heart-shaped holes will improve flex as they widen, while round, small holes stiffen the pen. Fourth, the length of the tines determines how far they can spread under pressure; shorter tines make a stiffer nib. Fifth, the alloy used can affect stiffness: as mentioned before, gold is considered superior for its flex compared to steel. Moreover, purer gold (18k and 21k) is softer than most lower gold concentration (14k) alloys. Furthermore, competition between the major pen brands such as Parker and Waterman, and the introduction of lifetime guarantees, meant that flexible nibs could no longer be supported profitably. In countries where this rivalry was not present to the same degree, for example the UK and Germany, flexible nibs are more common. Nowadays, stiff nibs are the norm as people exchange between fountain pens and other writing modes. These more closely emulate the ballpoint pens modern users are experienced with. Despite being rigid and firm, the idea that steel nibs write "horribly" is a misconception. More flexible nibs can be easily damaged by ballpoint users who write with excessive pressure. Ideally, a fountain pen's nib glides across the paper using the ink as a lubricant and requires no pressure. Good quality nibs that have been used appropriately are long lasting, often lasting longer than the lifetime of the original owner. Many vintage pens with decades-old nibs can still be used today. Pen
Different nib styles Other styles of fountain pen nibs include hooded (e.g., Parker 51, Parker 61, 2007 Parker 100, Lamy 2000, and Hero 329), inlaid (e.g., Sheaffer Targa or Sheaffer P.F.M) or integral Nib (Parker T-1 and Falcon, Pilot Myu 701), which may also be ground to have different writing characteristics. Users are often cautioned not to lend or borrow fountain pens as the nib "wears in" at an angle unique to each individual person. A different user is likely to find that a worn-in nib does not write satisfactorily in their hand and, furthermore, creates a second wear surface, ruining the nib for the original user. This, however, is not a point of concern in pens with modern, durable tipping material, as these pens take many years to develop any significant wear. ==Gallery==