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dispersed-phase thermoset-matrix composite failures

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Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... and untested materials are examined and compared. Complete microstructural examination should be an essential part of any creep experiment and failure investigation. At a minimum, microstructure and phase identification should be compared for specimens near and farther away from the fracture site...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.9781627081955
EISBN: 978-1-62708-195-5
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003057
EISBN: 978-1-62708-200-6
... wavelength-dispersion XRFS (WXRFS) ( Fig. 1 ). Both EDS and WXRFS are two of the few techniques where analytical measurements are made directly on a solid matrix. Fig. 1 Typical configuration for wavelength-dispersion x-ray fluorescence spectrometry The EDS technique is normally used in tandem...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003063
EISBN: 978-1-62708-200-6
... material is one that has a chemically and/or physically distinct phase distributed within a continuous phase ( Ref 2 ). The characteristics of the composite are generally different from those of either component. The continuous phase is the matrix phase, and the distributed or reinforcement phase can be in...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003064
EISBN: 978-1-62708-200-6
... strengths and moduli as those achieved with resin matrix composites. Moreover, because their properties are maintained to 2000 °C (3650 °F), they represent the premier material for inert atmosphere or short-time high-temperature applications. Table 7 shows typical mechanical properties of unidirectional...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001318
EISBN: 978-1-62708-170-2
... (0.8 × 10 −6 °F −1 ). Carbon begins to oxidize at measurable rates at approximately 371 °C (700 °F). Carbon-carbon composites exhibit high internal surface areas due to the porous nature of the structure (typical levels of interconnected porosity are 10 to 15%). Adding inhibitor phases to the matrix...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003043
EISBN: 978-1-62708-200-6
... Abstract The structural efficiency of a composite structure is established by its joints and assembly. Adhesive bonding, mechanical fastening, and fusion bonding are three types of joining methods for polymer-matrix composites. This article provides information on surface treatment and the...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005676
EISBN: 978-1-62708-198-6
.... Fig. 4 Transmission electron microscopy image of an acrylonitrile-butadiene-styrene polymer. The dark phase is comprised of butadiene rubber particles, which are dispersed in a styrene-acrylonitrile matrix. Source: Ref 2 Physical properties of polymers are the result of their long chain...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
... during service; examination of directionality in the microstructure and its possible relation to failure; and the distribution of phases within the material. After metallographic specimens from the component of interest have been prepared by grinding and polishing, they should be examined in the...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006783
EISBN: 978-1-62708-295-2
... in heat-exchanger applications, is cathodic to the less noble metals and alloys. Carbon-filled polymers or metal-matrix composites can act as noble metals in a galvanic couple. Ions of a more noble metal may be reduced on the surface of a more active metal, for example, copper on aluminum or...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
.... Additionally, in polycrystalline polyphase metallic materials, fracture may occur at or adjacent to grain boundaries, and cleavage fracture may occur in large second phases present in the microstructure, which then provide crack nuclei for ductile crack propagation in the matrix. Cleavage fracture at a...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006063
EISBN: 978-1-62708-172-6
... resin matrix can be assessed. Other coating anomalies, such as blistered areas of coating, are typically analyzed using chromatography. Chromatography is the collective term for a set of laboratory techniques for the separation of mixtures. The mixture is dissolved in a fluid called the mobile phase...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003005
EISBN: 978-1-62708-200-6
... continuous (matrix) phase present. They include polymer-, ceramic-, or metal-matrix composites that are reinforced with carbon, metallic, or ceramic additions. Ferrous materials, which include the cast irons and steels, form about 90% of the total usage of metallic materials in the world. The main...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003065
EISBN: 978-1-62708-200-6
... result of the special post-forming process(es), the original glass undergoes a substantial phase separation and/or structural transformation. Secondary processes that are performed on glass or glass-ceramic products that have previously been shaped into their basic useful form are sometimes required...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006454
EISBN: 978-1-62708-190-0
... instrumentation principles of acoustic emission and reviews the role of acoustic emission in materials studies. The article illustrates the testing of metal-matrix composites (MMCs) using acoustic emission and the use of acoustic emission inspection in production quality control. It concludes with information on...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003008
EISBN: 978-1-62708-200-6
.... Butadiene contributes toughness and impact resistance. Acrylonitrile-butadiene-styrene plastics are two-phase systems. Styrene-acrylonitrile (SAN) forms the continuous matrix phase. The second phase is composed of dispersed polybutadiene particles, which have a layer of SAN grafted onto their surface. The...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001304
EISBN: 978-1-62708-170-2
... usual polygonal ferrite structure Dual-phase steels , processed to a microstructure of ferrite containing small, uniformly distributed regions of high-carbon martensite, resulting in a product with low yield strength and a high rate of work hardening, thus providing a high-strength steel of superior...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003010
EISBN: 978-1-62708-200-6
..., coatings, matrix resins for laminates, and molding compounds. Thermosetting resins are well suited for application as engineering plastics. An engineering plastic is an organic polymer with a combination of mechanical, thermal, electrical, and chemical-resistance properties that allow it to be used in...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005672
EISBN: 978-1-62708-198-6
..., which results in low peel strengths. However, toughened epoxy adhesives are available that contain a rubber-based impact modifier dispersed throughout the glassy matrix. The addition of rubber particles makes epoxy more resistant to crack propagation. Silicone adhesives are soft thermoset elastomers...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.9781627081948
EISBN: 978-1-62708-194-8