Microstructure and mechanical properties of milled fibre/SiC multilayer composites prepared by tape casting and pressureless sintering

2013 ◽  
Vol 588 ◽  
pp. 103-110 ◽  
Author(s):  
W.S. Yang ◽  
S. Biamino ◽  
E. Padovano ◽  
M. Pavese ◽  
X. Chen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tape Casting ◽  
Pressureless Sintering ◽  
Microstructure And Mechanical Properties ◽  
Multilayer Composites

scholarly journals Optimizing the conductivity, microstructure and mechanical properties of tape-cast LATP with LiF and SiO2 additives

2021 ◽  
Author(s):  
Jürgen Peter Gross ◽  
Jürgen Malzbender ◽  
Enkhtsetseg Dashjav ◽  
Frank Tietz ◽  
Ruth Schwaiger
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Sintering Temperature ◽  
General Trend ◽  
Tape Casting ◽  
Growth Behavior ◽  
Crack Growth Behavior ◽  
Microstructure And Mechanical Properties ◽  
Solid State Batteries ◽  
Tape Cast

Abstract LATP sheets with LiF and SiO2 addition prepared by tape casting as electrolytes for solid-state batteries were characterized regarding conductivity, microstructure and mechanical properties aiming towards an optimized composition. The use of additives permitted a lowering of the sintering temperature. As general trend, higher LiF to SiO2 ratios led to lower porosities. This decrease in the porosity corresponds to an increase of the ionic conductivity as well as higher values of elastic modulus and hardness determined by indentation testing. Micro-pillar testing was used to assess the crack growth behavior, revealing weak grain boundaries.

Influence of Al2O3 Addition on the Microstructure and Mechanical Properties of Pressureless Sintered Ce-TZP

2005 ◽  
Vol 492-493 ◽  
pp. 783-0 ◽  
Author(s):  
Shui Gen Huang ◽  
Lin Li ◽  
Jef Vleugels ◽  
Pei Ling Wang ◽  
Omer Van der Biest
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Grain Size ◽  
Grain Growth ◽  
Vickers Hardness ◽  
Good Combination ◽  
Al2o3 Content ◽  
Pressureless Sintering ◽  
Sintering Time ◽  
Microstructure And Mechanical Properties

Mixtures of 12 mol% CeO2-stabilised ZrO2 with 5 to 20 wt % Al2O3 were prepared and densified through pressureless sintering in air at 1450° C for 1 to 4 h. The influence of the Al2O3 content and sintering time on the phase constitution, microstructure and mechanical properties of the as-sintered composites were investigated. Fully dense Ce-TZP/Al2O3 ceramics with a good combination of hardness and fracture toughness can be obtained by pressureless sintering in air for only 1 h. The addition of Al2O3 to Ce-TZP improves the mechanical properties and suppresses ZrO2 grain growth. The average ZrO2 grain size increases with increasing sintering time and decreasing Al2O3 content. This leads to an increase in toughness. An excellent fracture toughness of 14.3 MPam1/2 in combination with a Vickers hardness of 9.14 GPa was obtained for 12 mol % CeO2-TZP with 5 wt % Al2O3, sintered for 4 h.

Formation of tough interlocking microstructure in ZrB2–SiC-based ultrahigh-temperature ceramics by pressureless sintering

2009 ◽  
Vol 24 (7) ◽  
pp. 2428-2434 ◽  
Author(s):  
Ji Zou ◽  
Guo-Jun Zhang ◽  
Yan-Mei Kan
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Raw Materials ◽  
Pressureless Sintering ◽  
Sic Ceramics ◽  
Microstructure And Mechanical Properties ◽  
Ultrahigh Temperature

A self-reinforced ultrahigh-temperature ceramic (UHTC) with elongated ZrB2 grains has been successfully densified by pressureless sintering using commercially available ZrB2, SiC, and WC powders as raw materials. Benefiting from the unique interlocking microstructure, this material had improved strength (518 ± 10 MPa) and higher fracture toughness (6.5 ± 0.2 MPa m1/2) compared to ZrB2–SiC ceramics prepared by pressureless sintering. This work provides a new route for tailoring the microstructure and mechanical properties of UHTCs.

MoSi2 laminate processed by tape casting: Microstructure and mechanical properties' investigation

2008 ◽  
Vol 16 (6) ◽  
pp. 758-768 ◽  
Author(s):  
S. Biamino ◽  
A. Antonini ◽  
M. Pavese ◽  
P. Fino ◽  
C. Badini
Keyword(s):  
Mechanical Properties ◽  
Tape Casting ◽  
Microstructure And Mechanical Properties

Improvement of Mechanical Properties of Al2O3-SiC Composite with ZrO2 (3Y) Particles

2014 ◽  
Vol 974 ◽  
pp. 3-8
Author(s):  
Sukasem Watcharamaisakul
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Flexural Strength ◽  
Pressureless Sintering ◽  
Microstructure And Mechanical Properties

The mechanical properties of Al2O3-SiC based composites were improved by the addition of ZrO2(3Y) particles in the range of 10 to 25 vol.%. Al2O3-SiC/ZrO2(3Y) composites were manufactured by pressureless sintering at 1550, 1600, and 1650oC. Sintered composites were characterized for density, XRD, microstructure and mechanical properties such as flexural strength, fracture toughness and hardness. The results showed that the highest flexural strength of 250 MPa was obtained with 25 vol.% ZrO2(3Y) composite sintered at 1600oC due to higher density and smaller Al2O3grains in comparison with samples sintered at 1550oC and 1650oC, respectively. The maximum fracture toughness of 5.66 MPa.m1/2was obtained with 20 vol.% ZrO2(3Y) sintered at 1600oC. The highest hardness of 9.16 GPa was obtained with composite of 10 vol.% ZrO2(3Y) sintered at 1600oC as it contains the largest amount of hard SiC.

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