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Title:
MICRO-TORQUE MATERIAL STRENGTHENING BY FIBER SPOT-PINNING
Document Type and Number:
WIPO Patent Application WO/2013/117241
Kind Code:
A1
Abstract:
The invention discloses a method for strengthening a material by stress induced micro-torques; a method for making a compound material which is strengthened by stress induced micro-torques acting at spot-pinned fibers, fibrils or nanotubes; and a compound material consisting of a metallic, ceramic, or polymeric matrix material which is mechanically strengthened by embedding tubular fibers, fibrils or nanotubes in the matrix material, characterized in that the bonding strength between the matrix material and the inner tube walls of the fibers, fibrils or nanotubes is stronger than the bonding strength between the matrix material and the outer hull of the tubular fibers, fibrils or nanotubes, which causes stress induced micro-torques acting at the embedded fibers, fibrils or nanotubes, when the compound material is exposed to external mechanical stress, which in turn causes an increased mechanical strength of the compound material in comparison to the pure matrix material.

Inventors:
ADAMS HORST
Application Number:
PCT/EP2012/052360
Publication Date:
August 15, 2013
Filing Date:
February 10, 2012
Export Citation:
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Assignee:
ADAMCO AG (CH)
ADAMS HORST
International Classes:
C22C47/08; C08K7/06; C22C47/14; C22C49/06; C22C49/14
Domestic Patent References:
WO2006134405A12006-12-21
WO2011032791A12011-03-24
Foreign References:
US4299628A1981-11-10
US20060147690A12006-07-06
US20080219084A12008-09-11
US20100068526A12010-03-18
Other References:
ISMAIL H ET AL: "Curing characteristics, tensile properties and morphology of palm ash/halloysite nanotubes/ethylene-propylene-diene monomer (EPDM) hybrid composites", POLYMER TESTING, ELSEVIER, AMSTERDAM, NL, vol. 29, no. 7, 1 October 2010 (2010-10-01), pages 872 - 878, XP027247213, ISSN: 0142-9418, [retrieved on 20100702]
PASBAKHSH P ET AL: "Influence of maleic anhydride grafted ethylene propylene diene monomer (MAH-g-EPDM) on the properties of EPDM nanocomposites reinforced by halloysite nanotubes", POLYMER TESTING, ELSEVIER, AMSTERDAM, NL, vol. 28, no. 5, 1 August 2009 (2009-08-01), pages 548 - 559, XP026155473, ISSN: 0142-9418, [retrieved on 20090423], DOI: 10.1016/J.POLYMERTESTING.2009.04.004
L.A. DOBRZANSKI; B. TOMICZEK; M. ADAMIAK: "Manufacturing of EN AW6061 matrix compounds reinforced by Halloysite nanotubes", JOURNAL OF ACHIEVEMENTS IN MATERIALS AND MANUFACTURING ENGINEERING, 2011, pages 82 - 89, XP002686120
L.A. DOBRZANSKI; B. TOMICZEK; M. ADAMIAK: "Manufacturing of EN AW6061 matrix compounds reinforced by Halloysite nanotubes", JOURNAL OF ACHIEVEMENTS IN MATERIALS AND MANUFACTURING ENGINEERING, 2011, pages 82 - 89, XP002686120
PENG, H. X.; FAN, Z.; MUDHER, D. S.; EVANS, J. R. G.: "Microstructures and mechanical properties of engineered short fiber reinforced aluminum matrix compounds", MATERIALS SCIENCE AND ENGINEERING A, vol. 335, 2002, pages 207 - 216
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