scholarly journals Ambient to high-temperature fracture toughness and cyclic fatigue behavior in Al-containing silicon carbide ceramics

2003 ◽  
Vol 51 (20) ◽  
pp. 6477-6491 ◽  
Author(s):  
R Yuan ◽  
J.J Kruzic ◽  
X.F Zhang ◽  
L.C De Jonghe ◽  
R.O Ritchie
Keyword(s):  
Fracture Toughness ◽  
Silicon Carbide ◽  
High Temperature ◽  
Fatigue Behavior ◽  
Cyclic Fatigue ◽  
Temperature Fracture ◽  
Carbide Ceramics ◽  
Silicon Carbide Ceramics

scholarly journals Sintered Alpha Silicon Carbide Ceramics for High Temperature Structural Application: Status Review and Recent Developments

1985 ◽  
Author(s):  
R. S. Storm ◽  
W. D. G. Boecker ◽  
C. H. McMurtry ◽  
M. Srinivasan
Keyword(s):  
Fracture Toughness ◽  
Silicon Carbide ◽  
Composite Material ◽  
High Temperature ◽  
Physical Properties ◽  
Heat Engine ◽  
Structural Application ◽  
Recent Developments ◽  
Carbide Ceramics ◽  
Silicon Carbide Ceramics

The physical properties of sintered alpha silicon carbide are reviewed, including the effect of oxidation at high temperatures. Net shape fabricated components are described which have undergone extensive testing in heat engine applications. Properties of an SiC/TiB2 composite material, which has significantly improved fracture toughness, are presented.

scholarly journals Evaluations of bending strength and fracture toughness by indentation method in silicon carbide ceramics.

1990 ◽  
Vol 39 (442) ◽  
pp. 895-900
Author(s):  
Shigemi K. SASAKI ◽  
Yasuo OCHI ◽  
Akira ISHII ◽  
Makoto KAWAI ◽  
Sunao KURAKAZU
Keyword(s):  
Fracture Toughness ◽  
Silicon Carbide ◽  
Bending Strength ◽  
Indentation Method ◽  
Carbide Ceramics ◽  
Silicon Carbide Ceramics

Microstructure and Mechanical Properties of Heat-Resistant Silicon Carbide Ceramics

2007 ◽  
Vol 336-338 ◽  
pp. 1409-1413 ◽  
Author(s):  
Young Wook Kim ◽  
Yong Seong Chun ◽  
Sung Hee Lee ◽  
Ji Yeon Park ◽  
Toshiyuki Nishimura ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Silicon Carbide ◽  
Intergranular Phase ◽  
Sintering Additives ◽  
Heat Resistant ◽  
Sic Ceramics ◽  
Microstructure And Mechanical Properties ◽  
Carbide Ceramics ◽  
Silicon Carbide Ceramics

There has been a great progress in the development of heat-resistant silicon carbide ceramics, owing to the better understanding of composition-microstructure-properties relations. Based on the progress, it has been possible to fabricate heat-resistant SiC ceramics with improved fracture toughness. In this paper, three rare-earth oxides (Re2O3, Re=Er, Lu, and Sc) in combination with AlN were used as sintering additives for a β-SiC containing 1 vol% α-SiC seeds. The effect of intergranular phase, using Re2O3 and AlN as sintering additives, on the microstructure and mechanical properties of liquid-phasesintered, and subsequently annealed SiC ceramics were investigated. The microstructure and mechanical properties were strongly influenced by the sintering additive composition, which determines the chemistry and structure of IGP. The strength and fracture toughness of the Lu2O3-doped SiC were ∼700 MPa at 1400oC and ∼6 MPa.m1/2 at room temperature, respectively. The beneficial effect of the new additive compositions on high-temperature strength was attributed to the crystallization of the intergranular phase.

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