scholarly journals Mechanical Properties of Molybdenum Disulfide and the Effect of Doping: An in Situ TEM Study

2015 ◽  
Vol 7 (37) ◽  
pp. 20829-20834 ◽  
Author(s):  
Aleksander A. Tedstone ◽  
David J. Lewis ◽  
Rui Hao ◽  
Shi-Min Mao ◽  
Pascal Bellon ◽  
...  
Author(s):  
Konstantin Firestein ◽  
Alexander Steinman ◽  
Irina Sukhorukova ◽  
Andrey Kovalskii ◽  
Andrei Matveev ◽  
...  

Author(s):  
I.M. Robertson ◽  
T.C. Lee ◽  
P. Rozenak ◽  
G.M. Bond ◽  
H.K. Birnbaum

The bulk mechanical properties of a material will primarily be determined by the integrity of the grain boundaries which depends on the local chemistry and the boundary structure. Changes in the composition of the boundary may affect the strength of the atomic bonds through a redistribution of the electrons; this effect has been predicted from theoretical calculations1 but not determined experimentally. The structure of the boundary will be determined by the mismatch between the adjoining grains and it will affect the mechanism by which strain is transferred through the boundary. From static observations of the interaction between matrix and grainboundary dislocations the following scenario has been constructed for the transfer process through random boundaries; The interaction between the incoming matrix dislocation and those in the grain boundary cause the emission of a dislocation from a grain-boundary dislocation source into the adjacent grain. To preserve the contiguity of the grain boundary a residual dislocation will be created within the grain boundary.


ACS Nano ◽  
2011 ◽  
Vol 5 (9) ◽  
pp. 7362-7368 ◽  
Author(s):  
Dai-Ming Tang ◽  
Cui-Lan Ren ◽  
Xianlong Wei ◽  
Ming-Sheng Wang ◽  
Chang Liu ◽  
...  

2015 ◽  
Vol 107 ◽  
pp. 22-25 ◽  
Author(s):  
Matthew T. Janish ◽  
C. Barry Carter

2003 ◽  
Vol 778 ◽  
Author(s):  
M.S. Bobji ◽  
C.S. Ramanujan ◽  
R.C. Doole ◽  
J.B. Pethica ◽  
B.J. Inkson

AbstractTo quantify the mechanical properties and deformation behaviour of sub-micron wires, an in-situ nanoindenter system is being developed for a TEM. The miniaturized displacement controlled nanoindenter fits inside a side entry specimen holder. For coarse positioning, a novel 3-axis inertial positioner has been developed. This positioner has a range of 5mm with a 300 nm resolution. The fine displacements are generated by means of a tube piezo and the force is measured using a fibre optic interferometer.


Sign in / Sign up

Export Citation Format

Share Document