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zirconia ceramics

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Published: 31 December 2017
Fig. 12 Wear coefficient of zirconia ceramics in dry sliding as a function of sliding velocity and temperature More
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Published: 01 January 1989
Fig. 3 Micrograph of a fracture surface of an alumina-zirconia ceramic (Al 2 O 3 + 8% ZrO 2 ) showing the concentration of zirconia particles (the bright edges) at the alumina grain boundaries. 3000×. Courtesy of Carboloy Inc. More
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Published: 15 June 2020
Fig. 12 Zirconia-toughened alumina (ZTA) ceramics fabricated by the vat photopolymerization (VPP)-based printing process, with excellent mechanical properties. (a) Schematic illustration of the VPP-based ceramic printing process. (b) Gear-shaped ZTA ceramic printed through the VPP-based More
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
... on DED materials and the DED deposition process. The bulk of the article is devoted to the discussion on the microstructure and properties of oxide ceramics, namely alumina and zirconia ceramics. alumina ceramics directed-energy deposition microstructure powder feeding zirconia ceramics...
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Published: 01 January 2000
Fig. 9 Stress-strain response obtained using a ramp-shaped pulse in a modified split-Hopkinson pressure bar test for zirconia ceramic exhibiting inelastic strains associated with stress-induced transformation and microcracking. Source: Ref 9 , 10 More
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Published: 01 December 2004
Fig. 17 Scanning electron micrograph of a zirconia toughened ceramic (ZTC), thermally etched in air at 1300 °C (2730 °F). Lighter, tetragonal ZrO 2 grains are dispersed in the Al 2 O 3 matrix. The parallel arrays of facets within the grains are related to the ZTC crystallography. More
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Published: 15 June 2020
Fig. 12 SEM image of zirconia-alumina ceramic part surface built using selective laser melting (SLM) shows a highly dense surface with visible cracks. Source: Ref 16 More
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005655
EISBN: 978-1-62708-198-6
... of ceramics used in the body; there are many bioceramics in present use that are not described in this article. Bioinert Ceramics Bioinert ceramics are biologically inactive materials that undergo little or no chemical change in vivo . Alumina and zirconia are two ceramics used in surgical implants...
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
... nucleation and crystal growth procedure. Moreover, alumina (Al 2 O 3 ) or zirconia (ZrO 2 ) ceramics, typical biomedical ceramics, would not form apatite basically, but they may bond to bone tissue if their surface were adequately controlled in nanostructure as to attract adhesive proteins onto the surface...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003299
EISBN: 978-1-62708-176-4
..., caution should be exercised while adopting this linear elastic approach on ceramics that exhibit significant inelastic strain before fracture. For example, zirconia ceramics, such as MgO-PSZ and Y-TZP, exhibit considerable inelastic strains due to stress-induced transformation and associated microcracking...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005738
EISBN: 978-1-62708-171-9
... nitride; YSZ, yttria-stabilized zirconia; DySZ, dysprosia-stabilized zirconia Ceramic Zirconia-Base Abradables Much like the CoNiCrAlY abradables described previously, modern ceramic abradable powders are nominally comprised of three phases: a ceramic-matrix phase, typically yttria- or dysprosia...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006431
EISBN: 978-1-62708-192-4
.... Zirconia Zirconia (ZrO 2 ) ceramic is a refractory oxide made from zircon sand and is known to have a high strength and a higher toughness than alumina, especially because it can be significantly toughened for use in mechanical applications ( Ref 7 ). Toughness optimization through various mechanisms...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003302
EISBN: 978-1-62708-176-4
... in the range of 19 to 26 GPa ( Ref 33 ). The lower hardness of the commercial alumina is attributed to extensive porosity and impurities present in the material. Similarly, data for zirconia ceramics revealed that there is an increase of 9.0% for MgO-PSZ and a 12% increase for Y-TZP in their dynamic hardness...
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
..., and properties of aluminum oxides, aluminum titanate, silicon carbide, boron carbide, zirconia, silicon nitride, silicon-aluminum-oxynitride, and several ceramic composites. It also explains how these materials maintain their mechanical strength and dimensional tolerances at high temperatures and how some...
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
.... It presents a comprehensive discussion on the properties and composition of alumina-base tool materials, including alumina and titanium carbide, alumina-zirconia, and silicon carbide whisker reinforced alumina, and silicon nitride base tool materials. alumina carbide alumina-zirconia carbide ceramics...
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Published: 15 June 2020
-Jet Printing of Zirconia: Coffee Staining and Line Stability. J Am Ceram Soc. Wiley Online Library; 2011; 94: 3787–3792, https://doi.org/10.1111/j.1551-2916.2011.04697.x , with permission from Wiley. Copyright © 2019 The American Ceramic Society, all rights reserved. More
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006550
EISBN: 978-1-62708-290-7
... to use and safer to handle than ceramic powder, which can cause hazardous and unsightly dust. Fig. 2 Lubricant holes 100 μm in diameter incorporated into a zirconia drill bit produced by material jetting Gibson et al. ( Ref 8 ) identified several challenges associated with material jetting...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006563
EISBN: 978-1-62708-290-7
... Abstract This article focuses on powder bed fusion (PBF) of ceramics, which has the potential to fabricate functional ceramic parts directly without any binders or post-sintering steps. It presents the results of three oxide ceramic materials, namely silica, zirconia, and alumina, processed...
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Published: 01 January 1997
Fig. 13 Increase in fracture toughness ( K Ic ) observed upon inclusion of zirconia particles in the ceramic matrix. The volume of zirconia added is shown in the shaded histogram. The toughness of the matrix material is shown in the adjacent white histogram bars. S, sintered. HP, hot pressed More
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Published: 01 November 1995
Fig. 17 Increase in fracture toughness ( K Ic ) observed upon inclusion of zirconia particles in the ceramic matrix. The volume of zirconia added is shown in the shaded histogram. The toughness of the matrix material is shown in the adjacent unshaded histogram bars. S, sintered; HP, hot More