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dispersed-phase toughening

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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 and...
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: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002418
EISBN: 978-1-62708-193-1
... systems that exhibit plasticity-induced toughening have three distinct microstructures: isolated ductile reinforcements in an elastic matrix, interpenetrating ductile/elastic networks, and a ductile matrix with a dispersed elastic phase. The first two represent most metal-toughened ceramics and...
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...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003057
EISBN: 978-1-62708-200-6
... Abstract This article describes testing and characterization methods of ceramics for chemical analysis, phase analysis, microstructural analysis, macroscopic property characterization, strength and proof testing, thermophysical property testing, and nondestructive evaluation techniques...
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
... of these materials, intense research was generated to determined other toughening mechanisms (besides transformation toughening and dispersed-phase toughening) and alternative toughened-ceramic systems. One direction that shows promise is that of composite materials. For example, silicon...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003047
EISBN: 978-1-62708-200-6
... fillers, adhesion promoters, tackifiers, and tougheners. It gives a short note on functions of primers and primerless bonding. Applications of adhesives in automotive, aerospace, electronics, electrical, medical, sports, and construction sectors are also described. Finally, the article describes the steps...
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
... ) 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 that are even more complex, such as connected phases, are also visible. Dark or shaded...
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
... capable of dissolving or eroding a dispersed phase is one of the easiest and best techniques if you know 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...
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
... Al 2 O 3 ( Table 1 ). 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 The microstructure and subsequent mechanical properties can be tailored to specific applications. Higher ZrO 2...
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
... why it has been considered the prototypical system for transformation studies and applications. Pure zirconium dioxide will not be capable of transformation toughening, since the tetragonal phase needs to be stabilized until the stress needed to induce the transformation is created by the propagating...
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
... applications. Improvements in the thermo-mechanical properties occurred in the late 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...
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
... martensite Decrease K Ic due to brittleness Martensite content in quenched steels Increase K Ic Ferrite and pearlite in quenched steels Decrease K Ic of martensitic steels Table 3 A list of precipitates and intermetallic compounds in aluminum alloys Precipitate phases...
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
.... , Phase Diagrams for Ceramists , Vol VI , The American Ceramic Society , Westerville, OH , 1987 , Fig. 6505, System ZrO 2 -Y 2 O 3 13. El Attaoui H. , Saadaoui M. , Chevalier J. , and Fantozzi G. , Static and Cyclic Crack Propagation in Ce-TZP Ceramics with Different...
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 Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003795
EISBN: 978-1-62708-177-1
...) analysis. 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...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006559
EISBN: 978-1-62708-290-7
...) 100,000×. (c) Two-phase intersection. (d) 2000×. Source: Ref 55 . Reprinted from S. Yan, D.J. Wu, Y.F. Huang, N. Liu, Y.N. Zhang, F.N. Fang, and G.Y. Ma, C Fiber Toughening Al 2 O 3 -ZrO 2 Eutectic via Ultrasonic-Assisted Directed Laser Deposition, Mater. Lett. , Vol 235, Oct 2018, p 228–231, Copyright...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0005586
EISBN: 978-1-62708-170-2
... melted-vacuum arc remelted VOC volatile organic compound vol volume vol% volume percent VPE vapor-phase epitaxy w width W watt W load; weight of body; abrasive wear resistance; wear volume WDS wavelength-dispersive spectrometer WPC wear particle...
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
... April 1999 27. Kinloch A.J. and Young R.J. , Fracture Behavior of Polymers , Elsevier , 1983 28. Yee A.F. and Pearson R.A. , “Toughening Mechanisms in Elastomer Modified Epoxy Resins,” NASA Contractor Report 3718, 1983 29. Yee A.F. and Pearson...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001457
EISBN: 978-1-62708-173-3
... during matrix-microcracking in a service-overload condition ( Ref 11 ). Examples of oxide-matrix composites toughened by the dispersion of a second phase or material include the transformation-toughened zirconias (TTZ) ( Ref 12 ), zirconia-toughened aluminas ( Ref 13 ), and silicon carbide whisker...