Porosity Dependence of the Velocity of Surface and Bulk Acoustic Waves in Porous Silicon Carbide Films

2007 ◽  
pp. 745-748
Author(s):  
C.K. Young ◽  
G.T. Andrews ◽  
M.J. Clouter ◽  
Yue Ke ◽  
W.J. Choyke ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Porous Silicon ◽  
Acoustic Waves ◽  
Porous Silicon Carbide ◽  
Bulk Acoustic Waves ◽  
Porosity Dependence

Porosity Dependence of the Velocity of Surface and Bulk Acoustic Waves in Porous Silicon Carbide Films

2007 ◽  
Vol 556-557 ◽  
pp. 745-748 ◽  
Author(s):  
C.K. Young ◽  
G.T. Andrews ◽  
Maynard J. Clouter ◽  
Yue Ke ◽  
Wolfgang J. Choyke ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Porous Silicon ◽  
Acoustic Waves ◽  
Crystalline Silicon ◽  
Surface Acoustic Waves ◽  
Effective Medium ◽  
Bulk Acoustic Wave ◽  
Porous Silicon Carbide ◽  
Effective Medium Model ◽  
P Type

Brillouin light scattering spectroscopy was used to probe porous silicon carbide films formed from p-type 6H crystalline silicon carbide. The porosities of the films ranged from 30% to 58%. Surface and bulk acoustic wave velocities were measured and compared with those calculated from the Mori-Tanaka acoustic effective medium model. Qualitative agreement is obtained between the experimentally determined velocities and those predicted by Mori-Tanaka acoustic effective medium models with spherical pores and, in the case of surface acoustic waves, also with prolate spheroidal pores with shape factor equal to 0.2. The model demonstrates the importance of morphology in determining the behavior of acoustic waves in a porous material.

Porous Silicon Carbide (SiC): A Chance for Improving Catalysts or Just Another Active-Phase Carrier?

2021 ◽  
Author(s):  
Giulia Tuci ◽  
Yuefeng Liu ◽  
Andrea Rossin ◽  
Xiangyun Guo ◽  
Charlotte Pham ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Porous Silicon ◽  
Active Phase ◽  
Porous Silicon Carbide

Investigation of porous silicon carbide as a new material for environmental and optoelectronic applications

2010 ◽  
Vol 256 (18) ◽  
pp. 5629-5639 ◽  
Author(s):  
A. Keffous ◽  
N. Gabouze ◽  
A. Cheriet ◽  
Y. Belkacem ◽  
A. Boukezzata
Keyword(s):  
Silicon Carbide ◽  
Porous Silicon ◽  
Porous Silicon Carbide ◽  
New Material ◽  
Optoelectronic Applications

New porous silicon carbide composite reinforced by intact high-strength carbon fibres

2006 ◽  
Vol 26 (9) ◽  
pp. 1715-1724 ◽  
Author(s):  
Juliane Mentz ◽  
Marcus Müller ◽  
Meinhard Kuntz ◽  
Georg Grathwohl ◽  
Hans Peter Buchkremer ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Porous Silicon ◽  
High Strength ◽  
Carbon Fibres ◽  
Porous Silicon Carbide ◽  
Carbide Composite

Infrared analysis of porous silicon carbide

2005 ◽  
Vol 202 (8) ◽  
pp. 1548-1551 ◽  
Author(s):  
A. M. Rossi ◽  
F. Giorgis ◽  
V. Ballarini ◽  
S. Borini
Keyword(s):  
Silicon Carbide ◽  
Porous Silicon ◽  
Infrared Analysis ◽  
Porous Silicon Carbide

Composites by aluminum infiltration of porous silicon carbide derived from wood precursors

2006 ◽  
Vol 55 (12) ◽  
pp. 1083-1086 ◽  
Author(s):  
T.E. Wilkes ◽  
M.L. Young ◽  
R.E. Sepulveda ◽  
D.C. Dunand ◽  
K.T. Faber
Keyword(s):  
Silicon Carbide ◽  
Porous Silicon ◽  
Porous Silicon Carbide
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