Co-extrusion of Al2O3/ZrO2 bi-phase high temperature ceramics with fine scale aligned microstructures

Stress Intensity Factors for an Interface Kinked Crack in a Bi-Material Plate Loaded Normal to the Interface

“…In the fabrication process of ceramic composite materials, or in service interface, cracks could appear, or in one of the constituents near the interface. This type of fracture was reported by Kaya et al (2003) for zirconia interface between alumina and zirconia phases when the crack deflects along the interface. Solutions for the stress intensity factors (SIF) at the tip of the kinked crack are given, for different combinations of materials, by Murakami (1987) and by Isida and Noguchi (1983) using the body force method.…”

Fabrication of pore-gradient Al2O3–ZrO2 sintered bodies by fibrous monolithic process

“…innovative fibrous monolithic process was adapted to manufacture highly toughened ceramic bodies as well as to control the pore size and shape. [10][11][12] In this work, this new approach was used to fabricate poregradient Al 2 O 3 -ZrO 2 ceramic bodies using the fibrous monolithic process. The various parameters such as extrusion ratio, pore-gradient rate, pore size and microstructure were changed to set up optimum conditions for fabrication of pore-gradient Al 2 O 3 -ZrO 2 bodies.…”

Rheology and pressure filtration of aqueous SiC suspensions of nanometer-sized bimodal particles

“…Eqs. (6) and (9) are used to calculate the interaction energy between different kind of particles (A-B particles).…”

“…Our next interest is to study the consolidation behavior of bimodal particles system. The quantitative analysis of the degree of particle mixing in twocomponent powder compacts is important to understand the sintering behavior, mechanical properties or electrical properties of the composite materials such as Al 2 O 3 -ZrO 2 [6], Al 2 O 3 -TiC [7], Al 2 O 3 -Ni [8], 3Al 2 O 3 Á2SiO 2 -ZrO 2 ÁSiO 2 [9] or Al 2 O 3 -ITO (indium tin oxide) [10][11][12]. In a two-component system of A-B, three types of particle contact of A-A, A-B and B-B are formed in the microstructure of the powder compact [13,14].…”