Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/41677

Title

Mechanical properties of spray-formed composite structures

Author(s)

Brogan, Jeffrey A.;  Berndt, Christopher C.;  Claudon, A.;  Coddet, Christian

Abstract

In this study, ethylene methacrylic acid copolymer (EMAA) was used as the matrix to produce EMAA/Al2O3 and EMAA/NiCr composite coatings from dry-blended powder mixtures. This work was conducted to determine processing concerns when using similar sized reinforcement particles of different density in a flame-spray process. This work has utility for applications that require a reduction in mechanical wear and/or to confer upon a polymeric deposit a certain functional property by the introduction of value-added powder. Free-standing coatings were produced to test the mechanical properties of the sprayed deposit. The effects of the filler content on the secant modulus, yield stress, and tensile strength are discussed. The differences in deposition efficiencies among the EMAA, Al2O 3, and NiCr are highlighted with respect to particle size and density.

Publication type

Conference paper

Source

Thermal spray: meeting the challenges of the 21st century: proceedings of the 15th International Thermal Spray Conference, Nice, France, 25-29 May 1998 / Christian Coddet (ed.), Vol. 2, pp. 1173-1178

Publication year

1998

Keyword(s)

Adhesion;  Composite coatings;  Composite structures;  Copolymers;  Deposition;  EMAA;  Ethylene methacrylic acid copolymer;  Flame spraying;  Fracture;  Free-standing coatings;  Microstructure;  Organic coatings;  Particle size analysis;  Plastic deformation;  Reinforcement;  Scanning electron microscopy;  Strain rate;  Tensile strength;  Tensile testing;  Wear of materials;  Yield stress

Publisher

ASM International

ISBN

9780871706591, 0871706598

Peer reviewed