| 词条 | Boron fiber |
| 释义 |
Boron Fiber (also commonly called "boron filament") is an amorphous elemental boron product which represents the major industrial use of elemental (free) boron. Boron fiber manifests a combination of high strength and high 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] 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.[3][4][5] 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.[6] {{Chembox| Name = Boron fiber |Section1={{Chembox Identifiers | ChemSpiderID = none |Section2 = {{Chembox Properties | Density = 2.48-2.82 g/cc }}}} References1. ^{{cite web|title = Selected Mechanical and Physical Properties of Boron Filaments|year = 1966|first = H. W.|last = Herring|publisher = NASA|accessdate = 2008-09-20| url = https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19660005941_1966005941.pdf}} {{Fibers}}2. ^{{Cite journal|title = Fracture behaviour of boron filaments|first = G. K.|last = Layden| journal = Journal of Materials Science|volume = 8|issue = 11|year = 1973|pages = 1581–1589| doi = 10.1007/BF00754893|bibcode=1973JMatS...8.1581L}} 3. ^{{cite web|publisher = United States Geological Survey|url = http://minerals.usgs.gov/minerals/pubs/commodity/boron/myb1-2006-boron.pdf |first = Dennis S.|last = Kostick|year = 2006|title = Mineral Yearbook: Boron|accessdate = 2008-09-20|format=PDF}} 4. ^{{Cite journal|title = Inorganic Fibers—A Literature Review|first = Theodore F.|last = Cooke|journal = Journal of the American Ceramic Society|volume = 74|issue = 12|pages = 2959–2978|doi = 10.1111/j.1151-2916.1991.tb04289.x|year = 1991}} 5. ^{{cite web|url=http://www.specmaterials.com/boronfiber.htm|title=Boron Fiber|author=|date=|work=|publisher=Specialty Materials|accessdate=|deadurl=yes|archiveurl=https://web.archive.org/web/20140812061915/http://specmaterials.com/boronfiber.htm|archivedate=2014-08-12|df=}} 6. ^{{Cite journal| title = Microfabrication of three-dimensional boron structures by laser chemical processing| journal = Journal of Applied Physics|volume = 72| pages = 5956–5963|year =1992| doi = 10.1063/1.351904|first = S.|last = Johansson| last2 = Schweitz| first2 = Jan-Åke| last3 = Westberg| first3 = Helena| last4 = Boman| first4 = Mats| issue = 12|bibcode = 1992JAP....72.5956J}} 1 : Fibers |
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