Boron fiber or boron filament is an amorphous product which represents the major industrial use of elemental boron. Boron fiber manifests a combination of high strength and high elastic modulus.
A common use of boron fibers is in the construction of high tensile strength tapes. Boron fiber use results in high-strength, lightweight materials that are used chiefly for advanced aerospace structures as a component of composite materials, as well as limited production consumer and sporting goods such as golf clubs and fishing rods.[1][2]
One of the uses of boron fiber composites was the horizontal tail surfaces of the F-14 Tomcat fighter. This was done because carbon fiber composites were not then developed to the point they could be used, as they were in many subsequent aircraft designs.[3]
In the production process, elemental boron is deposited on an even tungsten wire substrate which produces diameters of 4.0 mil (102 micron) and 5.6 mil (142 micron). It consists of a fully borided tungsten core with amorphous boron.[4][5][6]
Boron fibers and sub-millimeter sized crystalline boron springs are produced by laser-assisted chemical vapor deposition. Translation of the focused laser beam allows to produce even complex helical structures. Such structures show good mechanical properties (elastic modulus 450 GPa, fracture strain 3.7%, fracture stress 17 GPa) and can be applied as reinforcement of ceramics or in micromechanical systems.[7]
^Herring, H. W. (1966). "Selected Mechanical and Physical Properties of Boron Filaments" (PDF). NASA. Retrieved September 20, 2008.
^Layden, G. K. (1973). "Fracture behaviour of boron filaments". Journal of Materials Science. 8 (11): 1581–1589. Bibcode:1973JMatS...8.1581L. doi:10.1007/BF00754893. S2CID 136959123.
^"Boron fiber: The original high-performance fiber". www.compositesworld.com. Retrieved February 26, 2021.
^Kostick, Dennis S. (2006). "Mineral Yearbook: Boron" (PDF). United States Geological Survey. Retrieved September 20, 2008.
^Cooke, Theodore F. (1991). "Inorganic Fibers—A Literature Review". Journal of the American Ceramic Society. 74 (12): 2959–2978. doi:10.1111/j.1151-2916.1991.tb04289.x.
^"Boron Fiber". Specialty Materials. Archived from the original on August 12, 2014.
^Johansson, S.; Schweitz, Jan-Åke; Westberg, Helena; Boman, Mats (1992). "Microfabrication of three-dimensional boron structures by laser chemical processing". Journal of Applied Physics. 72 (12): 5956–5963. Bibcode:1992JAP....72.5956J. doi:10.1063/1.351904.
Boronfiber or boron filament is an amorphous product which represents the major industrial use of elemental boron. Boronfiber manifests a combination...
the element itself is as boron filaments with applications similar to carbon fibers in some high-strength materials. Boron is primarily used in chemical...
resistance), C-glass (alkali-lime glass with high boron oxide content, used for glass staple fibers and insulation), D-glass (borosilicate glass, named...
fiber, or optical fibre, is a flexible glass or plastic fiber that can transmit light from one end to the other. Such fibers find wide usage in fiber-optic...
fibreglass (Commonwealth English) is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet...
elongate direction, cause the fibrous habit of ulexite and the fiber optical properties. Boron is a trace element within the lithosphere that has an average...
alongside the Grumman F-14 Tomcat and both used boronfiber composites in the tails; less expensive carbon fiber reinforced polymer were used for wing skins...
temperatures. Boron, aluminum and all the rare-earth dopants significantly affect fiber loss. Radiation performances of various SM, MM and PM fibers manufactured...
Boron can be prepared in several crystalline and amorphous forms. Well known crystalline forms are α-rhombohedral (α-R), β-rhombohedral (β-R), and β-tetragonal...
with one or more of the following materials: BoronFiber Carbon Fiber Fiberglass Wood Aluminum Carbon fiber has become by far the most common building material...
elemental boron is not gaseous, neutron detectors containing boron may alternately use boron trifluoride (BF3) enriched to 96% boron-10 (natural boron is 20%...
polyester, vinylester, phenolics, furans, polyimides. Fibers: Glass, aramid, carbon and boronfibers. The fibers are used straight from a creel and not woven or...
use of boron compounds in the world (accounting for half of total global use) is the production of certain types of boron-treated glass fiber for insulating...
BN fibers, boron nitride nanotubes show promise for aerospace applications where integration of boron and in particular the light isotope of boron (10B)...
bond between the fibers and matrix. This is achieved by depositing a thin layer of pyrolytic carbon or boron nitride on the fibers, which weakens the...
properties. It forms breakable[clarification needed] gels when cross-linked with boron[citation needed]. It is used in various multi-phase formulations for hydraulic...
2011. Retrieved 1 September 2010. "What is the density of Hydrogenated Boron Nitride Nanotubes (H-BNNT)?". space.stackexchange.com. Archived from the...
strength. One of the first MMCs used boron filament as reinforcement. Discontinuous reinforcement uses "whiskers", short fibers, or particles. The most common...
the literature of chemistry. The six commonly recognised metalloids are boron, silicon, germanium, arsenic, antimony and tellurium. Five elements are...
Pressureless sintering of ZrB2 is possible with sintering additives such as boron carbide and carbon which react with the surface oxides to increase the driving...
springs and heating elements,2,6,7,9 and the composites industry for boron and ceramic fibers. As with conventional CVD, one or more gas phase precursors are...
for a given degree of resistance. The most common materials are alumina, boron carbide, and, to a lesser extent, silicon carbide. Tests as early as 1918...
Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having...
abattoir workers to prevent cuts and wounds while cutting up carcasses. Boron carbide is used in hard plate armor capable of defeating rifle and armor...
(fracking) of oil and gas formations. Guar gum is often crosslinked with boron or chromium ions to make it more stable and heat-resistant. The crosslinking...
in the periodic table, those to the left of a diagonal line drawn from boron to polonium, are metals. Mixtures of two or more elements in which the major...
light from a laser into an optical fiber core. The numerical apertures of the fiber and lens need to match. The fiber can usually be placed in direct contact...
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