Hypersound anomalies and elastic constants in single‐crystal PbMg1/3Nb2/3O3by Brillouin scattering

1995 ◽  
Vol 78 (9) ◽  
pp. 5665-5668 ◽  
Author(s):  
C.‐S. Tu ◽  
V. Hugo Schmidt ◽  
I. G. Siny
Keyword(s):  
Single Crystal ◽  
Elastic Constants ◽  
Brillouin Scattering

Determination of Elastic Constants in Single Crystal Bi 12 SiO 20 by Brillouin Scattering Spectroscopy

2002 ◽  
Vol 272 (1) ◽  
pp. 125-130
Author(s):  
Y. S. Yu ◽  
B. C. Shin ◽  
S. W. Jang ◽  
S. C. Kim
Keyword(s):  
Single Crystal ◽  
Elastic Constants ◽  
Brillouin Scattering

High-pressure Brillouin scattering and elastic constants of single-crystal hydrogen to 24 GPa

1994 ◽  
Author(s):  
Chang-sheng Zha ◽  
Thomas S. Duffy ◽  
Ho-kwang Mao ◽  
Russell J. Hemley
Keyword(s):  
High Pressure ◽  
Single Crystal ◽  
Elastic Constants ◽  
Brillouin Scattering

scholarly journals Generalization of intrinsic ductile-to-brittle criteria by Pugh and Pettifor for materials with a cubic crystal structure

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
O. N. Senkov ◽  
D. B. Miracle
Keyword(s):  
Crystal Structure ◽  
Shear Modulus ◽  
Bulk Modulus ◽  
Single Crystal ◽  
Elastic Constants ◽  
Mechanical Analysis ◽  
Quantum Mechanical ◽  
Modulus Ratio ◽  
Cubic Crystal ◽  
The Difference

AbstractTwo classical criteria, by Pugh and Pettifor, have been widely used by metallurgists to predict whether a material will be brittle or ductile. A phenomenological correlation by Pugh between metal brittleness and its shear modulus to bulk modulus ratio was established more than 60 years ago. Nearly four decades later Pettifor conducted a quantum mechanical analysis of bond hybridization in a series of intermetallics and derived a separate ductility criterion based on the difference between two single-crystal elastic constants, C12–C44. In this paper, we discover the link between these two criteria and show that they are identical for materials with cubic crystal structures.

Brillouin-scattering determination of the elastic constants of epitaxial fccC60film

1995 ◽  
Vol 52 (12) ◽  
pp. R8707-R8710 ◽  
Author(s):  
D. Fioretto ◽  
G. Carlotti ◽  
G. Socino ◽  
S. Modesti ◽  
C. Cepek ◽  
...  
Keyword(s):  
Elastic Constants ◽  
Brillouin Scattering

DECcalc - A Program for the Calculation of Diffraction Elastic Constants from Single Crystal Coefficients

2011 ◽  
Vol 681 ◽  
pp. 417-419 ◽  
Author(s):  
Thorsten Manns ◽  
Berthold Scholtes
Keyword(s):  
Computer Program ◽  
Single Crystal ◽  
Elastic Constants ◽  
Single Phase ◽  
Proper Function ◽  
Almost All

A Matlab based computer program was developed which gives the possibility to calculate the diffraction elastic constants (DEC) of macroscopically isotropic, single phase materials from their single crystal elastic constants. The proper function of the program was confirmed by means of results from literature. In almost all cases the results from the program DECcalc could reproduce the values and diagrams given in the appropriate publications. Discrepancies could always be assigned to the use of different single crystal coefficients.

Sign in / Sign up

Export Citation Format

Share Document