Fracture Behavior of SiC-Whisker-Reinforced Barium Aluminosilicate Glass-Ceramic Matrix Composites

2001 ◽  
Vol 84 (4) ◽  
pp. 881-883 ◽  
Author(s):  
Feng Ye ◽  
Jue Ming Yang ◽  
Li Tong Zhang ◽  
Wan Cheng Zhou ◽  
Yu Zhou ◽  
...  
Keyword(s):  
Glass Ceramic ◽  
Fracture Behavior ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Aluminosilicate Glass ◽  
Matrix Composites ◽  
Barium Aluminosilicate

High-Temperature Flow of SiC Continuous Fiber-Glass Ceramic Matrix Composites: The Effect of Interface/Interphase Ductility

1994 ◽  
Vol 365 ◽  
Author(s):  
B.G. Nair ◽  
R.F. Cooper ◽  
J.N. Almquist ◽  
M.E. Plesha
Keyword(s):  
High Temperature ◽  
Glass Ceramic ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Constitutive Relationship ◽  
Aluminosilicate Glass ◽  
Matrix Composites ◽  
Bulk Specimen ◽  
Calcium Aluminosilicate ◽  
Rheologic Model

ABSTRACTThe elevated temperature rheology of continuous SiC (Nicalon®) calcium aluminosilicate glass-ceramic matrix composites is evaluated in uniaxial compression creep experiments (-σ1 = 20-to-40 MPa; T = 1300–1320°C). The steady state strain rate is demonstrated.to be highly sensitive to the orientation of the reinforcement relative to the maximum compressional stress, with highest bulk specimen strain rates noted for conditions in vWhich the sliding between the fiber and the matrix is optimized as a kinetic flow response (i.e., a fiber orientation of approximately 40-50° from σ1). One further discovers that the temperature sensitivity (i.e., activation energy) of flow increases as the amount of interface flow/sliding increases. The experimental results suggest that the high-temperature, low-stress interface response in this composite system is related to the ductile flow of the “Planar” SiO2 reaction-layer interphase that exists (in addition to the well-recognized planar carbon interphase) in these materials. The results of these simple experiments are used to calibrate a microscale-to-macroscale rheologic model in which the fibermatrix interface is described by a viscous constitutive relationship.

scholarly journals The effect of microstructural features on the mechanical properties of LZSA glass-ceramic matrix composites

Cerâmica ◽  
2013 ◽  
Vol 59 (351) ◽  
pp. 351-359 ◽  
Author(s):  
F. M. Bertan ◽  
A. P. Novaes de Oliveira ◽  
O. R. K. Montedo ◽  
D. Hotza ◽  
C. R. Rambo
Keyword(s):  
Glass Ceramic ◽  
Bending Strength ◽  
Chemical Properties ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Linear Shrinkage ◽  
Matrix Composites ◽  
Particulate Reinforced ◽  
And Chemical Properties

This work reports on the characterization of ZrSiO4 particulate-reinforced Li2O-ZrO2-SiO2-Al2O3 (LZSA) glass-ceramic matrix composites. The typical physical/mechanical and chemical properties of the glass batches and the composites were measured. A composition with 60 wt.% ZrSiO4 was preliminarily selected because it demonstrated the highest values of bending strength (190 MPa) and deep abrasion resistance (51 mm³). To this same composition was given a 7 wt.% bentonite addition in order to obtain plasticity behavior suitable for extrusion. The sintered samples (1150 ºC for 10 min) presented a thermal linear shrinkage of 14% and bending strength values of 220 MPa.

The mechanical behaviour of glass and glass–ceramic matrix composites

2000 ◽  
Vol 278 (1-2) ◽  
pp. 187-194 ◽  
Author(s):  
K.-L Choy ◽  
P Duplock ◽  
P.S Rogers ◽  
J Churchman-Davies ◽  
M.T Pirzada
Keyword(s):  
Mechanical Behaviour ◽  
Glass Ceramic ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Matrix Composites
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