Macroscopic Twinning Strain in Nanocrystalline Cu

The critical role of grain orientation and applied stress in nanoscale twinning

“…Once b lead is selected, its equivalent b twin (b twin has the same Burgers vector as b lead ) and the trailing b trail are known from crystallographic considerations. Although it is crystallographically possible for a twin to form through activation of other twinning partials at ± 120°to the lead partial 24,35 , the large orientation dependence we observe and recent experiments revealing that zero-strain twinning is not dominant 35 are evidence that the twinning partials have the same Burgers vector as the lead, high Schmid factor partial dislocation. For a given orientation, the propensity to twin can be found by comparing the total force (per unit length) on b twin as it is emitted from the boundary, which is…”

Advances in sealed liquid cells for in-situ TEM electrochemial investigation of lithium-ion battery

“…Advances in 0D [9], 1D [10] and 2D [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] material fabrication technologies have enabled various forms of nanoscale materials, which can be used as nanostructured anodes to accommodate the large volume changes during cycling. For example, silicon nanowire anodes were reported to retain high capacity during several charge-discharge cycles in spite of an initial volume change of 400% [27], while bulk silicon loses more than 80% of its capacity in less than 10 cycles due to pulverization [28].…”

Advances in windowed gas cells for in-situ TEM studies

“…Advances in 0D [32], 1D [33] and 2D [34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49] material fabrication technologies have enabled various forms of nanoscale materials, which increased the needs of in-situ ETEM studies through the closed-type approach, i.e. windowed gas cells.…”