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ceramic-matrix composites

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003551
EISBN: 978-1-62708-180-1
... is of the type S 1 + L 1 → L 2 + S 2 with the formation of S 2 causing the interface composition to change. For porous solids such as refractories with open porosity and with matrix materials being fine and highly reactive, both dissolution and penetration occur; hence, most slagging situations involve...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... psig), 600 °C (1110 °F) and above >42 Advanced ultrasupercritical 27.8–34.5 MPa (4000–5000 psig), 700–760 °C (1300–1400 °F) >45 Source: Ref 34 Nominal composition of alloys tested in molten chlorides at 650 and 700 °C (1200 and 1290 °F) under nitrogen Table 3 Nominal...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
.... Nyman S.D. , “ What Is Wear ,” Jenson C.C. , March 2007 , https://www.cjc.dk/fileadmin/root/File_Admin_Filter/doc_Articles/What_is_Wear__2007.pdf , accessed Jan 10, 2019 7. Zhang C. , Understanding the Wear and Tribological Properties of Ceramic Matrix Composites , Advances...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003522
EISBN: 978-1-62708-180-1
..., plasma etching (which can be used only for SiC and Si 3 N 4 ceramic materials) attacks the matrix grains of the ceramic and not the grain-boundary phase ( Fig. 29 ) ( Ref 10 ). Plasma etching is carried out inside a special plasma-etching apparatus, which provides a gaseous mixture of CF 4 and O 2...
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
... ceramic materials) attacks the matrix grains of the ceramic and not the grain-boundary phase ( Fig. 29 ) ( Ref 12 ). Plasma etching is carried out inside a special plasma-etching apparatus, which provides a gaseous mixture of CF 4 and O 2 . A radio-frequency generator emits high-frequency electromagnetic...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001489
EISBN: 978-1-62708-217-4
... concentration of any element, probably due to the enhanced matrix effect when analyzing smaller size inclusions in the “cups” of fracture surface. On the fracture surfaces of sample B, chromium, manganese, and sulfur were found to be present in almost all the inclusions. In both the rings, the composition...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003560
EISBN: 978-1-62708-180-1
... in PCBs are on the order of 0.343 to 0.457 mm (0.0135 to 0.0180 in.) in diameter by 6.35 mm (0.25 in.) in length. In this case, the drill bits are made of cobalt with approximately 50 vol% of uniformly distributed 0.1 μm sintered WC particles in the cobalt matrix. Vickers hardness of the drill bits...
Book Chapter

Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006790
EISBN: 978-1-62708-295-2
... a duplex microstructure or that are made up of two or more component phases (e.g., a composite-type material, such as a high-chromium white iron, or a composite drill bit, such as diamond or tungsten carbide inserts in a steel matrix), the individual components of which vary in their mechanical properties...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006794
EISBN: 978-1-62708-295-2
....2008.04.076 15. Trzaskoma P.P. , Corrosion Behavior of a Graphite Fiber/Magnesium Metal Matrix Composite in Aqueous Chloride Solution , Corrosion , Vol 42 , 1986 , p 609 − 613 10.5006/1.3583031 16. McCauley R.A. , Corrosion of Ceramic and Composite Materials , 2nd ed...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003565
EISBN: 978-1-62708-180-1
... due to recession. The results of this process for tests run with a cast seat insert (based on a tool steel matrix) are shown in Fig. 29 . As can be seen, the model produces good correlation over a range of velocities. As shown in Fig. 28 , recession due to impact wear is roughly proportional...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003555
EISBN: 978-1-62708-180-1
... this transformation, aluminum diffuses from the Ni 2 Al 3 to meet and react with the nickel diffusing from the substrate, forming a three-zone coating structure. This gives rise to an outer zone after heat treatment that consists of a β-NiAl matrix saturated with foreign elements and containing numerous precipitates...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006793
EISBN: 978-1-62708-295-2
... hardening, whereas in the white layer, it is a property of the near-surface material developed in situ ( Ref 12 ). A different subsurface region system develops when a brittle or nondeforming matrix is subjected to repetitive impact ( Ref 12 ). A white layer still forms, but the base material tends...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003572
EISBN: 978-1-62708-180-1
..., aspect ratio, distribution, orientation, combination with fillers, and the quality of bonding with the matrix), and operating conditions. Fibers are far more wear resistant than the matrix and hence control the wear of composite. Continuous fiber-reinforced composites with a thermoset-polymer matrix...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... rupture due to MVC is the most prevalent fracture mechanism of ductile overload failures. During deformation, cavities (or microvoids) nucleate at small particles (such as inclusions and second-phase particles) when the matrix material separates from the particle by interfacial decohesion and when...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... and second-phase particles) when the matrix material separates from the particle by interfacial decohesion or when the inclusion or second-phase fractures. The level of extensional growth of the microvoids is dependent on the level of plastic strain the material can undergo prior to fracture...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006789
EISBN: 978-1-62708-295-2
.... , Wear-Mechanism Maps , Acta Metall. , Vol 35 , 1987 , p 1 – 24 18. Rao R.N. , Das S. , Mondal D.P. , Dixit G. , and Tulasi Devi S.L. , Dry Sliding Wear Maps for AA7071 (Al-Zn-Mg-Cu) Aluminium Matrix Composite , Tribol. Int. , Vol 60 , 2013 , p 77 – 82 10.1016...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006766
EISBN: 978-1-62708-295-2
... procedures. For instance, in the case of carbon steel, iron produces a rich and intense spectrum that can interfere with the analytes of interest. Careful matching of calibration standards to the elemental matrix of the specimen and the acid solvent is critical in order to produce valid data. Proper...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1
... in Al-Zn-Mg-Cu alloys Larger matrix precipitates and grain boundary particles due to overaging Increase in intergranular microvoid coalescence during unstable fracture Lower K Ic and K c None for stress corrosion Higher K Iscc and lower region II crack growth velocity Larger grain...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001850
EISBN: 978-1-62708-241-9
... grained ferrites, i.e., decarburization with a depth of 0.67 mm was observed throughout the inner surface of the specimen as shown in Fig. 3c . This layer was associated with grain coarsening due to heating and had an average ASTM grain size number of 2. Microstructural examination of the matrix showed...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006792
EISBN: 978-1-62708-295-2
.... , Rusek P. , and Toboła D. , Improvement of Tribological Properties of Metal Matrix Composites by Means of Slide Burnishing , Mater. Sci. , Vol 19 ( No. 4 ), 2013 , p 367 – 372 10.5755/j01.ms.19.4.2404 133. Avilés R. , Albizuri J. , Rodríguez A. , and De Lacalle...