The Experts below are selected from a list of 2283717 Experts worldwide ranked by ideXlab platform
Mariastella Scandola - One of the best experts on this subject based on the ideXlab platform.
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flax fibre polyester composites
Composites Part A-applied Science and Manufacturing, 2004Co-Authors: Massimo Baiardo, Elisa Zini, Mariastella ScandolaAbstract:Abstract Composites of an aliphatic polyester (Bionolle) with natural flax fibres are prepared by batch mixing. The effect of processing conditions on fibre length distribution and the dependence of the composite mechanical properties on fibre content are investigated. The tensile modulus changes with fibre content according to the modified Rule-of-Mixture Equation, with a fibre orientation efficiency factor η 0 =0.194. The strength of Bionolle/flax composites tends to decrease with fibre loading, showing that there is no adhesion between matrix and fibres. With the aim to improve fibre–matrix adhesion, surface chemically modified flax fibres are also tested as reinforcing agents. A 30% strength increase is observed when natural fibres (25 vol%) are substituted by fibres containing acetate groups. No significant strength changes are observed in composites containing fibres with valerate groups or polyethylene glycol chains grafted at the surface.
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Flax fibre–polyester composites
Composites Part A: Applied Science and Manufacturing, 2004Co-Authors: Massimo Baiardo, Elisa Zini, Mariastella ScandolaAbstract:Abstract Composites of an aliphatic polyester (Bionolle) with natural flax fibres are prepared by batch mixing. The effect of processing conditions on fibre length distribution and the dependence of the composite mechanical properties on fibre content are investigated. The tensile modulus changes with fibre content according to the modified Rule-of-Mixture Equation, with a fibre orientation efficiency factor η 0 =0.194. The strength of Bionolle/flax composites tends to decrease with fibre loading, showing that there is no adhesion between matrix and fibres. With the aim to improve fibre–matrix adhesion, surface chemically modified flax fibres are also tested as reinforcing agents. A 30% strength increase is observed when natural fibres (25 vol%) are substituted by fibres containing acetate groups. No significant strength changes are observed in composites containing fibres with valerate groups or polyethylene glycol chains grafted at the surface.
Massimo Baiardo - One of the best experts on this subject based on the ideXlab platform.
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flax fibre polyester composites
Composites Part A-applied Science and Manufacturing, 2004Co-Authors: Massimo Baiardo, Elisa Zini, Mariastella ScandolaAbstract:Abstract Composites of an aliphatic polyester (Bionolle) with natural flax fibres are prepared by batch mixing. The effect of processing conditions on fibre length distribution and the dependence of the composite mechanical properties on fibre content are investigated. The tensile modulus changes with fibre content according to the modified Rule-of-Mixture Equation, with a fibre orientation efficiency factor η 0 =0.194. The strength of Bionolle/flax composites tends to decrease with fibre loading, showing that there is no adhesion between matrix and fibres. With the aim to improve fibre–matrix adhesion, surface chemically modified flax fibres are also tested as reinforcing agents. A 30% strength increase is observed when natural fibres (25 vol%) are substituted by fibres containing acetate groups. No significant strength changes are observed in composites containing fibres with valerate groups or polyethylene glycol chains grafted at the surface.
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Flax fibre–polyester composites
Composites Part A: Applied Science and Manufacturing, 2004Co-Authors: Massimo Baiardo, Elisa Zini, Mariastella ScandolaAbstract:Abstract Composites of an aliphatic polyester (Bionolle) with natural flax fibres are prepared by batch mixing. The effect of processing conditions on fibre length distribution and the dependence of the composite mechanical properties on fibre content are investigated. The tensile modulus changes with fibre content according to the modified Rule-of-Mixture Equation, with a fibre orientation efficiency factor η 0 =0.194. The strength of Bionolle/flax composites tends to decrease with fibre loading, showing that there is no adhesion between matrix and fibres. With the aim to improve fibre–matrix adhesion, surface chemically modified flax fibres are also tested as reinforcing agents. A 30% strength increase is observed when natural fibres (25 vol%) are substituted by fibres containing acetate groups. No significant strength changes are observed in composites containing fibres with valerate groups or polyethylene glycol chains grafted at the surface.
Elisa Zini - One of the best experts on this subject based on the ideXlab platform.
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flax fibre polyester composites
Composites Part A-applied Science and Manufacturing, 2004Co-Authors: Massimo Baiardo, Elisa Zini, Mariastella ScandolaAbstract:Abstract Composites of an aliphatic polyester (Bionolle) with natural flax fibres are prepared by batch mixing. The effect of processing conditions on fibre length distribution and the dependence of the composite mechanical properties on fibre content are investigated. The tensile modulus changes with fibre content according to the modified Rule-of-Mixture Equation, with a fibre orientation efficiency factor η 0 =0.194. The strength of Bionolle/flax composites tends to decrease with fibre loading, showing that there is no adhesion between matrix and fibres. With the aim to improve fibre–matrix adhesion, surface chemically modified flax fibres are also tested as reinforcing agents. A 30% strength increase is observed when natural fibres (25 vol%) are substituted by fibres containing acetate groups. No significant strength changes are observed in composites containing fibres with valerate groups or polyethylene glycol chains grafted at the surface.
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Flax fibre–polyester composites
Composites Part A: Applied Science and Manufacturing, 2004Co-Authors: Massimo Baiardo, Elisa Zini, Mariastella ScandolaAbstract:Abstract Composites of an aliphatic polyester (Bionolle) with natural flax fibres are prepared by batch mixing. The effect of processing conditions on fibre length distribution and the dependence of the composite mechanical properties on fibre content are investigated. The tensile modulus changes with fibre content according to the modified Rule-of-Mixture Equation, with a fibre orientation efficiency factor η 0 =0.194. The strength of Bionolle/flax composites tends to decrease with fibre loading, showing that there is no adhesion between matrix and fibres. With the aim to improve fibre–matrix adhesion, surface chemically modified flax fibres are also tested as reinforcing agents. A 30% strength increase is observed when natural fibres (25 vol%) are substituted by fibres containing acetate groups. No significant strength changes are observed in composites containing fibres with valerate groups or polyethylene glycol chains grafted at the surface.
M. Durman - One of the best experts on this subject based on the ideXlab platform.
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Temperature dependent strength analysis of short fiber reinforced Al–Si metal matrix composites
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 1999Co-Authors: Hatem Akbulut, M. DurmanAbstract:Abstract Metal matrix composites (MMCs) were produced by a pressure infiltration technique, using Saffil ( δ -Al 2 O 3 ) alumina short fiber preforms as the reinforcement, and the alloy Al–12 wt% Si (LM 13) as the matrix material. The matrix alloy and the composites were subjected to a standard T6 heat treatment and consequently tensile tested. The room temperature strength of the composites were seen to increase up to 15 vol.% fiber and then deviated sharply from the linear behavior and decrease continuously as the fiber volume increased. As the test temperature was raised, all composites showed excellent retention of strength up to 300°C. Furthermore, the experimental results of tensile strength were compared to a modified rule of mixtures (ROM). The high temperature strength analysis showed that the strength of planar-randomly oriented short fiber reinforced material can be explained through combined effects of load transfer, dispersion strengthening, and dislocation strengthening. The reinforcement behavior of these type of composites is seen to be controlled by the elevated temperature properties of the matrix alloy. The theoretical tensile strength values, calculated with a temperature dependent modified rule of mixture Equation, showed an excellent agreement with experimental data at room temperature and also at elevated temperatures of up to about 200°C.
Hatem Akbulut - One of the best experts on this subject based on the ideXlab platform.
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Temperature dependent strength analysis of short fiber reinforced Al–Si metal matrix composites
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 1999Co-Authors: Hatem Akbulut, M. DurmanAbstract:Abstract Metal matrix composites (MMCs) were produced by a pressure infiltration technique, using Saffil ( δ -Al 2 O 3 ) alumina short fiber preforms as the reinforcement, and the alloy Al–12 wt% Si (LM 13) as the matrix material. The matrix alloy and the composites were subjected to a standard T6 heat treatment and consequently tensile tested. The room temperature strength of the composites were seen to increase up to 15 vol.% fiber and then deviated sharply from the linear behavior and decrease continuously as the fiber volume increased. As the test temperature was raised, all composites showed excellent retention of strength up to 300°C. Furthermore, the experimental results of tensile strength were compared to a modified rule of mixtures (ROM). The high temperature strength analysis showed that the strength of planar-randomly oriented short fiber reinforced material can be explained through combined effects of load transfer, dispersion strengthening, and dislocation strengthening. The reinforcement behavior of these type of composites is seen to be controlled by the elevated temperature properties of the matrix alloy. The theoretical tensile strength values, calculated with a temperature dependent modified rule of mixture Equation, showed an excellent agreement with experimental data at room temperature and also at elevated temperatures of up to about 200°C.
