Multi-phase ceramics by computer-controlled pressure filtration

Mattern, Andreas; Oberacker, R.; Hoffmann, Michael J.

doi:10.1016/j.jeurceramsoc.2003.10.037

Cited by 11 publications

(9 citation statements)

References 25 publications

(17 reference statements)

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“…However, the reader may be surprised to see the increasing trend of fracture toughness with increasing dimensionless crack length, since the fracture toughness of a material should be independent of / . This trend is seen in several other investigations 59,78,79 and can be explained by reference to the work of Adams et al 59 . As shown in Figure 3, the stress in the x direction (horizontal) is tensile at the centre of the disk.…”

Section: Resultssupporting

confidence: 69%

Fracture toughness of wet and dry particulate materials comprised of colloidal sized particles: role of plastic deformation

Sesso

Franks

2017

Soft Matter

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This work demonstrates a method of measuring the fracture toughness of particulate materials comprised of colloidal sized particles over a wide range of saturation. Diametral compression of cylinders containing flaws of controlled length was used to measure the mode I fracture toughness. The effect of degree of saturation on the fracture toughness of slip cast ceramic grade alumina (d = 0.7 μm) was investigated. Dry powder compacts have significantly lower fracture toughness than when the powder compact is nearly fully saturated. All observations are consistent with the fracture mechanism being predominantly brittle for the dry samples but predominantly ductile in the nearly saturated samples. The additional dissipation that occurs during the ductile fracture of the nearly saturated samples is due to plastic deformation in front of the crack tip. This well-known mechanism for toughening in metals has been quantified for the first time in soft matter. Analysis of the results indicates that the size of the plastic dissipation zone is more than an order of magnitude larger in the nearly saturated materials compared to the dry material. Understanding the fracture mechanisms that control the propagation of cracks through saturated, partially saturated and dry particulate materials comprised of colloidal sized particles provides additional insight into understanding drying cracks in paint, other coatings, ceramics and water treatment sludge.

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Section: Resultssupporting

confidence: 69%

Fracture toughness of wet and dry particulate materials comprised of colloidal sized particles: role of plastic deformation

Sesso

Franks

2017

Soft Matter

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“…Furthermore, in some cases the thermal gradient disparity of various stages may cause this crack development to be sintered better from smaller particles than from equi-axed grain fractions. [251][252][253] Slip-casting must be filled in with a slurry (slip) into a porosity mold to form the final product. There is a high potential in using slip casting to easily and efficiently produce molds.…”

Section: Fabrication Of Dental-ceramicsmentioning

confidence: 99%

Review—A Conceptual Analysis on Ceramic Materials Used for Dental Practices: Manufacturing Techniques and Microstructure

Kandavalli¹,

Kandavalli²,

Ruban³

et al. 2022

ECS J. Solid State Sci. Technol.

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In the era of biomaterials evolution, ceramic materials are playing a notable role in dental practices. Ceramics have been used in dental applications for several decades because of its important properties such as suitable biological incorporation into human body, surface colouration, enhanced surface morphology, mechanical characteristics, physiochemical integration, durability and lifespan. There are numerous complications in the fabrication and production of ceramics by manufacturers. Therefore, much research and development has been performed to further improve and understand the manufacturing mechanisms which occur on the ceramic materials. These efforts are aimed at not only improving the fundamental understanding of the material but also helping to meet customer satisfaction and quality of production. This review article mainly provides insight on the various ceramic materials with a focus on their properties including stability, strength, and heat resistance. It is corroborated with a detailed account of various ceramic fabrication processing techniques with their applications that include sol-gel casting, hot pressing and phase inversion methods. In summary, some critical suggestions as well as detailed scope of future aspects and frontiers have been outlined to provide robust improvements for research and development platforms.

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“…In this solution, a thick YSZ-Al 2 O 3 composite sol-gel film can be deposited by electrophoresis on specimens with a complex geometry. 28 Combining the techniques of depositing thick sol-gel composite films [2][3][4][5]28 with the pressure filtration technique to enhance body density of ceramic products, [29][30][31] we developed a novel coating technique called "thermal pressure filtration of sol-gel paint (TPFSP)". [25][26][27] Fig.4 is the schematic of device to prepare thick composite oxide coatings by TPFSP.…”

Section: Thermal Pressure Filtration Of Sol-gel Paintsmentioning

confidence: 99%

Novel Sol-Gel Methods for Preparation of Ceramic-Oxide Coatins

Gao

2010

Int. J. Mod. Phys. B

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This paper reviews several innovative techniques that have been developed in our labs to overcome the shortages of conventional sol-gel techniques, and discusses the technical details of preparing these ceramic coatings with controllable thickness, microstructure, composition and improved properties. Int. J. Mod. Phys. B 2010.24:2983-2991. Downloaded from www.worldscientific.com by MONASH UNIVERSITY on 12/15/14. For personal use only.

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Multi-phase ceramics by computer-controlled pressure filtration

Cited by 11 publications

References 25 publications

Fracture toughness of wet and dry particulate materials comprised of colloidal sized particles: role of plastic deformation

Fracture toughness of wet and dry particulate materials comprised of colloidal sized particles: role of plastic deformation

Review—A Conceptual Analysis on Ceramic Materials Used for Dental Practices: Manufacturing Techniques and Microstructure

Novel Sol-Gel Methods for Preparation of Ceramic-Oxide Coatins

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