1-20 of 89 Search Results for

dispersed-phase toughening

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Image
Published: 01 December 2004
Fig. 3 Dispersed-phase-toughened carbon fiber composite material that was sectioned at an oblique angle to obtain a larger view of the interlayer region. Large, irregular ases, with some phases spherical and hollow, were found in the interlayer area and extended into the intraply area More
Image
Published: 01 December 2004
Fig. 4 Dispersed-phase-toughened carbon fiber composite material that was sectioned at an oblique angle to obtain a larger view of the interlayer region. A complex morphology was revealed, which was also present in the intraply area. Ultrathin section. Transmitted light, differential More
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009071
EISBN: 978-1-62708-177-1
... transfer molding, vacuum-assisted resin transfer molding, and resin film infusion. It explains the composite- and matrix-toughening methods for fiber-reinforced composites, such as dispersed-phase toughening and interlayer toughening. The article concludes with information on optical microscopy, which...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009080
EISBN: 978-1-62708-177-1
... Abstract This article describes the dispersed-phase toughening of thermoset matrices by the development of multiphase-structure thermosetting matrices using rubber and/or thermoplastic materials. It discusses two main methods for manufacturing prepregs, namely, single-pass impregnation...
Image
Published: 01 December 2004
Fig. 11 Micrograph of crack propagation through a dispersed-phase, rubber-toughened thermoset-matrix composite after impact. Transmitted-light phase contrast, 40× objective More
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009081
EISBN: 978-1-62708-177-1
... of composite failure mechanisms such as thermoplastic-matrix composite failure mechanisms, untoughened thermoset-matrix composite failure mechanisms, toughened thermoset-matrix composite failure mechanisms, dispersed-phase and rubber-toughened thermoset-matrix composite failure mechanisms, and particle...
Image
Published: 01 January 1990
Fig. 4 Scanning electron micrograph of high-purity, zirconia-toughened alumina showing dispersed zirconia phase (white) within an alumina matrix More
Image
Published: 01 January 2001
Fig. 6 Scanning electron micrograph of high-purity zirconia-toughened alumina (ZTA) showing dispersed ZrO 2 phase (white) within an Al 2 O 3 matrix More
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001107
EISBN: 978-1-62708-162-7
... or monoclinic symmetry. ZTA is a material of interest primarily because it has a significant higher strength and fracture toughness than alumina. Fig. 4 Scanning electron micrograph of high-purity, zirconia-toughened alumina showing dispersed zirconia phase (white) within an alumina matrix...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002418
EISBN: 978-1-62708-193-1
... networks, and a ductile matrix with a dispersed elastic phase. The first two represent most metal-toughened ceramics and intermetallics. The latter includes most metal-matrix composites and rubber-toughened polymers. An important difference between the first two microstructures and the third concerns...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009075
EISBN: 978-1-62708-177-1
... the composition of the phase. For example, if the thermoset is toughened with polyetherimide (PEI), which creates a dispersed phase, a good solvent to etch or dissolve the PEI phase is methylene chloride ( Ref 17 ). After the sample is polished, it can be placed face down in the solvent for 2 to 24 hours...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009082
EISBN: 978-1-62708-177-1
... the matrix but are also found clustered in many areas. With higher magnification ( Fig. 6 ) and the use of bright-field illumination, the bamboo fibers are found to be irregular in shape. Also in this micrograph, the appearance of a dispersed phase is indicated by light, circular areas. Other features...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003486
EISBN: 978-1-62708-195-5
... micrograph of high-purity zirconia-toughened alumina (ZTA) showing dispersed ZrO 2 phase (white) within an Al 2 O 3 matrix The microstructure and subsequent mechanical properties can be tailored to specific applications. Higher ZrO 2 contents lead to increased fracture toughness and strength values...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002126
EISBN: 978-1-62708-188-7
... 1960s when Japanese researchers added titanium carbide (TiC) to an Al 2 O 3 matrix. This alloyed ceramic is a dispersion-strengthened ceramic that contains 25 to 40 vol% TiC as a dispersed particulate phase. Alumina-titanium carbide is often called a black ceramic composite due to its color, which...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003063
EISBN: 978-1-62708-200-6
... Overview of Composites A composite 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...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005675
EISBN: 978-1-62708-198-6
... such as in the body, toughening effects are gradually lost, accompanying roughness in the surface. This LTD will be enhanced under stress. With greater Y 2 O 3 contents, nearly 100% of the zirconia is in the tetragonal symmetry, and the average grain size is approximately 0.4 to 0.8 µm. The tetragonal phase...
Book Chapter

Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003736
EISBN: 978-1-62708-177-1
... of transformation toughening, since the tetragonal phase needs to be stabilized until the stress needed to induce the transformation is created by the propagating crack. Additions of calcium oxide, magnesium oxide, and yttrium oxide can stabilize tetragonal precipitates of zirconia in a cubic zirconia matrix...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003362
EISBN: 978-1-62708-195-5
... increase in resin viscosity as rubber content increases. They can be dissolved directly into the epoxy or addition can be facilitated with a solvent that is later removed. In all cases, the rubber must phase out of solution during cure in order to effectively toughen the resin without sacrificing modulus...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003795
EISBN: 978-1-62708-177-1
.... Standard scanning electron microscopes are normally equipped with different detectors. The backscatter detector is useful for multiphase materials, when the different phases reveal a strong mass contrast. In this case, no etching is required. Secondary electron detectors are sensitive to small differences...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002379
EISBN: 978-1-62708-193-1
... and schematically illustrates the mechanism of crack propagation. The article describes the fracture resistance of high-strength steels, aluminum alloys, titanium alloys, and composites such as brittle matrix-ductile phase composites and metal-matrix composites. It also lists the effects of microstructural...