Alumina/alumina composite with a porous zirconia interphase —Processing, properties and component testing

Holmquist, M.; Lundberg, Robert; Sudre, Olivier; Razzell, A.G.; Molliex, L.; Benoît, Jean; Adlerborn, J.

doi:10.1016/s0955-2219(99)00258-7

Cited by 51 publications

(21 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consistent with our results, similar phenomena have been reported in other researches. Holmquist et al [20] coated alumina fibers with porous zirconia to achieve a weak interface, where the porous coating functioned like a porous matrix and interphase was tailored to achieve easily debonding. Simon [21] employed fabrics and impregnation technique to fabricate continuous mullite fiber-reinforced porous ceramic matrix composites and the stress-strain behavior is also a quasi-ductile fracture mode.…”

Section: Fracture Mode and Reinforcing Mechanismsmentioning

confidence: 99%

Effect of YSZ fiber addition on microstructure and properties of porous YSZ ceramics

Dong

Wang²,

Zhou³

2012

J Mater Sci

View full text Add to dashboard Cite

Yttria-stabilized zirconia (YSZ) fiber was introduced as the reinforcement for porous YSZ ceramics fabricated by tert-butyl alcohol-based gel-casting process and pressureless sintering. Effect of YSZ fiber addition on the microstructure and properties of porous YSZ ceramics was studied systematically. Results showed that YSZ fiber obviously obstructed densification during the sintering process and therefore higher porosity could be achieved with the same solid loading of the initial slurry. Mean pore size regularly increased with increasing fiber addition. The reinforcing effect reached its optimum with 10 wt% YSZ fiber addition, yet decreased with increasing porosity. Fiber addition significantly changed the fracture mode of the porous ceramics from brittle to quasi-ductile with increasing fiber additions; fiber pull-out and crack deflection play major roles in the process. Compared with the porous ceramics without fibers, the thermal conductivity decreased a little. With improved mechanical and thermal properties, YSZ fiber-reinforced porous YSZ ceramics are more applicable in thermal insulation materials.

show abstract

Section: Fracture Mode and Reinforcing Mechanismsmentioning

confidence: 99%

Effect of YSZ fiber addition on microstructure and properties of porous YSZ ceramics

Dong

Wang²,

Zhou³

2012

J Mater Sci

View full text Add to dashboard Cite

show abstract

“…3 Afterward, numerous theoretical and experimental studies on thermal shock failure of ceramics have been reported. [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] Among them, Hasselman gave qualitatively theoretical predictions of crack propagation behaviour in polycrystalline alumina rods under thermal shock by water quenching. 5 Lu and Fleck analyzed the thermal shock resistance of brittle solids by use of a stress-based fracture criterion.…”

Section: Introductionmentioning

confidence: 99%

Direct numerical simulations on crack formation in ceramic materials under thermal shock by using a non-local fracture model

Song

Jiang

2013

Journal of the European Ceramic Society

View full text Add to dashboard Cite

In this work, a non-local failure model was proposed and implemented into a finite element code. It was then used to simulate the crack evolution in ceramic materials subjected to thermal shock. By using this numerical model, the initiation and propagation of cracks in water quenched ceramic specimens were simulated. The numerical simulations reproduced faithfully the crack patterns in ceramic specimens underwent quenching tests. The periodical and hierarchical characteristics of the crack patterns were accurately predicted. The numerical simulations allow a direct observation on whole the process of crack initiation and growth, which is quite a difficult task in experimental studies. The failure mechanisms and the fracture procedure are discussed according to the numerical results obtained from the simulations. It is shown that the numerical model is simple, robust, accurate and efficient in simulating crack evolution in real structures under thermal shock.

show abstract

“…[1][2][3][4][5][6] Significant research effort is being expended in the optimisation of CMCs, with particular emphasis on the establishment of reliable and cost effective fabrication procedures. [1][2][3][4][5][6][7][8][9][10][11][12][13][14] Electrophoretic deposition (EPD) is the process by which charged particles in a liquid medium move under an applied potential towards an oppositely charged electrode and coagulate there to form a stable deposit. [15][16][17] EPD has been used for the production of CMCs with a variety of ceramic matrices * Corresponding author.…”

Section: Introductionmentioning

confidence: 99%

Fabrication technologies for oxide–oxide ceramic matrix composites based on electrophoretic deposition

Stoll

Mahr

Krüger

et al. 2006

Journal of the European Ceramic Society

View full text Add to dashboard Cite

Alumina/alumina composite with a porous zirconia interphase —Processing, properties and component testing

Cited by 51 publications

References 16 publications

Effect of YSZ fiber addition on microstructure and properties of porous YSZ ceramics

Effect of YSZ fiber addition on microstructure and properties of porous YSZ ceramics

Direct numerical simulations on crack formation in ceramic materials under thermal shock by using a non-local fracture model

Fabrication technologies for oxide–oxide ceramic matrix composites based on electrophoretic deposition

Contact Info

Product

Resources

About